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| <li>概要: </li> |
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| <div class="subTitle">org.apache.calcite.sql</div> |
| <h2 title="类 SqlDialect" class="title">类 SqlDialect</h2> |
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| <ul class="inheritance"> |
| <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="java.lang中的类或接口">java.lang.Object</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.calcite.sql.SqlDialect</li> |
| </ul> |
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| <dl> |
| <dt>直接已知子类:</dt> |
| <dd><a href="../../../../org/apache/calcite/sql/dialect/AccessSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">AccessSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/AnsiSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">AnsiSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/BigQuerySqlDialect.html" title="org.apache.calcite.sql.dialect中的类">BigQuerySqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/CalciteSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">CalciteSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/Db2SqlDialect.html" title="org.apache.calcite.sql.dialect中的类">Db2SqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/DerbySqlDialect.html" title="org.apache.calcite.sql.dialect中的类">DerbySqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/FirebirdSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">FirebirdSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/H2SqlDialect.html" title="org.apache.calcite.sql.dialect中的类">H2SqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/HiveSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">HiveSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/HsqldbSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">HsqldbSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/InfobrightSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">InfobrightSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/InformixSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">InformixSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/IngresSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">IngresSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/InterbaseSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">InterbaseSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/JethroDataSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">JethroDataSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/LucidDbSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">LucidDbSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/MssqlSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">MssqlSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/MysqlSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">MysqlSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/NeoviewSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">NeoviewSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/NetezzaSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">NetezzaSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/OracleSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">OracleSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/ParaccelSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">ParaccelSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/PhoenixSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">PhoenixSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/PostgresqlSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">PostgresqlSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/RedshiftSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">RedshiftSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/SnowflakeSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">SnowflakeSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/SparkSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">SparkSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/SybaseSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">SybaseSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/TeradataSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">TeradataSqlDialect</a>, <a href="../../../../org/apache/calcite/sql/dialect/VerticaSqlDialect.html" title="org.apache.calcite.sql.dialect中的类">VerticaSqlDialect</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>public class <span class="typeNameLabel">SqlDialect</span> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="java.lang中的类或接口">Object</a></pre> |
| <div class="block"><code>SqlDialect</code> encapsulates the differences between dialects of SQL. |
| |
| <p>It is used by classes such as <a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口"><code>SqlWriter</code></a> and |
| <a href="../../../../org/apache/calcite/sql/util/SqlBuilder.html" title="org.apache.calcite.sql.util中的类"><code>SqlBuilder</code></a>. |
| |
| <p>To add a new <a href="../../../../org/apache/calcite/sql/SqlDialect.html" title="org.apache.calcite.sql中的类"><code>SqlDialect</code></a> sub-class, extends this class to hold 2 public final |
| static member: |
| <ul> |
| <li>DEFAULT_CONTEXT: a default <a href="../../../../org/apache/calcite/sql/SqlDialect.Context.html" title="org.apache.calcite.sql中的接口"><code>SqlDialect.Context</code></a> instance, which can be used to customize |
| or extending the dialect if the DEFAULT instance does not meet the requests</li> |
| <li>DEFAULT: the default <a href="../../../../org/apache/calcite/sql/SqlDialect.html" title="org.apache.calcite.sql中的类"><code>SqlDialect</code></a> instance with context properties defined with |
| <code>DEFAULT_CONTEXT</code></li> |
| </ul></div> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ======== NESTED CLASS SUMMARY ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="nested.class.summary"> |
| <!-- --> |
| </a> |
| <h3>嵌套类概要</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="嵌套类概要表, 列表嵌套类和解释"> |
| <caption><span>嵌套类</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">限定符和类型</th> |
| <th class="colLast" scope="col">类和说明</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.CalendarPolicy.html" title="org.apache.calcite.sql中的枚举">SqlDialect.CalendarPolicy</a></span></code> |
| <div class="block">Whether this JDBC driver needs you to pass a Calendar object to methods |
| such as <a href="https://docs.oracle.com/javase/8/docs/api/java/sql/ResultSet.html?is-external=true#getTimestamp-int-java.util.Calendar-" title="java.sql中的类或接口"><code>ResultSet.getTimestamp(int, java.util.Calendar)</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.Context.html" title="org.apache.calcite.sql中的接口">SqlDialect.Context</a></span></code> |
| <div class="block">Information for creating a dialect.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.DatabaseProduct.html" title="org.apache.calcite.sql中的枚举">SqlDialect.DatabaseProduct</a></span></code> |
| <div class="block">Rough list of flavors of database.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.FakeUtil.html" title="org.apache.calcite.sql中的类">SqlDialect.FakeUtil</a></span></code> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> </div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- =========== FIELD SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="field.summary"> |
| <!-- --> |
| </a> |
| <h3>字段概要</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="字段概要表, 列表字段和解释"> |
| <caption><span>字段</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">限定符和类型</th> |
| <th class="colLast" scope="col">字段和说明</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="java.util中的类或接口">Set</a><<a href="../../../../org/apache/calcite/sql/SqlOperator.html" title="org.apache.calcite.sql中的类">SqlOperator</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#BUILT_IN_OPERATORS_LIST">BUILT_IN_OPERATORS_LIST</a></span></code> |
| <div class="block">Built-in scalar functions and operators common for every dialect.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../org/apache/calcite/sql/SqlDialect.html" title="org.apache.calcite.sql中的类">SqlDialect</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#CALCITE">CALCITE</a></span></code> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> |
| <div class="block"><span class="deprecationComment">Use <a href="../../../../org/apache/calcite/sql/dialect/CalciteSqlDialect.html#DEFAULT"><code>CalciteSqlDialect.DEFAULT</code></a> instead.</span></div> |
| </div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="../../../../org/apache/calcite/sql/SqlDialect.html" title="org.apache.calcite.sql中的类">SqlDialect</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#DUMMY">DUMMY</a></span></code> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> |
| <div class="block"><span class="deprecationComment">Use <a href="../../../../org/apache/calcite/sql/dialect/AnsiSqlDialect.html#DEFAULT"><code>AnsiSqlDialect.DEFAULT</code></a> instead.</span></div> |
| </div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../org/apache/calcite/sql/SqlDialect.Context.html" title="org.apache.calcite.sql中的接口">SqlDialect.Context</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#EMPTY_CONTEXT">EMPTY_CONTEXT</a></span></code> |
| <div class="block">Empty context.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#identifierEndQuoteString">identifierEndQuoteString</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#identifierEscapedQuote">identifierEscapedQuote</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#identifierQuoteString">identifierQuoteString</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#literalEndQuoteString">literalEndQuoteString</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#literalEscapedQuote">literalEscapedQuote</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#literalQuoteString">literalQuoteString</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected static org.slf4j.Logger</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#LOGGER">LOGGER</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected <a href="../../../../org/apache/calcite/config/NullCollation.html" title="org.apache.calcite.config中的枚举">NullCollation</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#nullCollation">nullCollation</a></span></code> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.summary"> |
| <!-- --> |
| </a> |
| <h3>构造器概要</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="构造器概要表, 列表构造器和解释"> |
| <caption><span>构造器</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colOne" scope="col">构造器和说明</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#SqlDialect-org.apache.calcite.sql.SqlDialect.Context-">SqlDialect</a></span>(<a href="../../../../org/apache/calcite/sql/SqlDialect.Context.html" title="org.apache.calcite.sql中的接口">SqlDialect.Context</a> context)</code> |
| <div class="block">Creates a SqlDialect.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#SqlDialect-org.apache.calcite.sql.SqlDialect.DatabaseProduct-java.lang.String-java.lang.String-">SqlDialect</a></span>(<a href="../../../../org/apache/calcite/sql/SqlDialect.DatabaseProduct.html" title="org.apache.calcite.sql中的枚举">SqlDialect.DatabaseProduct</a> databaseProduct, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> databaseProductName, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> identifierQuoteString)</code> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> </div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#SqlDialect-org.apache.calcite.sql.SqlDialect.DatabaseProduct-java.lang.String-java.lang.String-org.apache.calcite.config.NullCollation-">SqlDialect</a></span>(<a href="../../../../org/apache/calcite/sql/SqlDialect.DatabaseProduct.html" title="org.apache.calcite.sql中的枚举">SqlDialect.DatabaseProduct</a> databaseProduct, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> databaseProductName, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> identifierQuoteString, |
| <a href="../../../../org/apache/calcite/config/NullCollation.html" title="org.apache.calcite.config中的枚举">NullCollation</a> nullCollation)</code> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> |
| <div class="block"><span class="deprecationComment">Use <a href="../../../../org/apache/calcite/sql/SqlDialect.html#SqlDialect-org.apache.calcite.sql.SqlDialect.Context-"><code>SqlDialect(Context)</code></a></span></div> |
| </div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.summary"> |
| <!-- --> |
| </a> |
| <h3>方法概要</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="方法概要表, 列表方法和解释"> |
| <caption><span id="t0" class="activeTableTab"><span>所有方法</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">静态方法</a></span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">实例方法</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">具体方法</a></span><span class="tabEnd"> </span></span><span id="t6" class="tableTab"><span><a href="javascript:show(32);">已过时的方法</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">限定符和类型</th> |
| <th class="colLast" scope="col">方法和说明</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#allowsAs--">allowsAs</a></span>()</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/calcite/sql/parser/SqlParser.ConfigBuilder.html" title="org.apache.calcite.sql.parser中的类">SqlParser.ConfigBuilder</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#configureParser-org.apache.calcite.sql.parser.SqlParser.ConfigBuilder-">configureParser</a></span>(<a href="../../../../org/apache/calcite/sql/parser/SqlParser.ConfigBuilder.html" title="org.apache.calcite.sql.parser中的类">SqlParser.ConfigBuilder</a> configBuilder)</code> |
| <div class="block">Copies settings from this dialect into a parser configuration.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>protected static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#containsNonAscii-java.lang.String-">containsNonAscii</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> s)</code> |
| <div class="block">Returns whether the string contains any characters outside the |
| comfortable 7-bit ASCII range (32 through 127, plus linefeed (10) and |
| carriage return (13)).</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../org/apache/calcite/sql/SqlDialect.html" title="org.apache.calcite.sql中的类">SqlDialect</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#create-java.sql.DatabaseMetaData-">create</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/sql/DatabaseMetaData.html?is-external=true" title="java.sql中的类或接口">DatabaseMetaData</a> databaseMetaData)</code> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> |
| <div class="block"><span class="deprecationComment">Replaced by <a href="../../../../org/apache/calcite/sql/SqlDialectFactory.html" title="org.apache.calcite.sql中的接口"><code>SqlDialectFactory</code></a></span></div> |
| </div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/calcite/rel/RelFieldCollation.NullDirection.html" title="org.apache.calcite.rel中的枚举">RelFieldCollation.NullDirection</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#defaultNullDirection-org.apache.calcite.rel.RelFieldCollation.Direction-">defaultNullDirection</a></span>(<a href="../../../../org/apache/calcite/rel/RelFieldCollation.Direction.html" title="org.apache.calcite.rel中的枚举">RelFieldCollation.Direction</a> direction)</code> |
| <div class="block">Returns whether NULL values are sorted first or last, in this dialect, |
| in an ORDER BY item of a given direction.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/calcite/sql/JoinType.html" title="org.apache.calcite.sql中的枚举">JoinType</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#emulateJoinTypeForCrossJoin--">emulateJoinTypeForCrossJoin</a></span>()</code> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#emulateNullDirection-org.apache.calcite.sql.SqlNode-boolean-boolean-">emulateNullDirection</a></span>(<a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> node, |
| boolean nullsFirst, |
| boolean desc)</code> |
| <div class="block">Returns the SqlNode for emulating the null direction for the given field |
| or <code>null</code> if no emulation needs to be done.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>protected <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#emulateNullDirectionWithIsNull-org.apache.calcite.sql.SqlNode-boolean-boolean-">emulateNullDirectionWithIsNull</a></span>(<a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> node, |
| boolean nullsFirst, |
| boolean desc)</code> </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/calcite/sql/SqlDialect.CalendarPolicy.html" title="org.apache.calcite.sql中的枚举">SqlDialect.CalendarPolicy</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#getCalendarPolicy--">getCalendarPolicy</a></span>()</code> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#getCastSpec-org.apache.calcite.rel.type.RelDataType-">getCastSpec</a></span>(<a href="../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a> type)</code> |
| <div class="block">Returns SqlNode for type in "cast(column as type)", which might be |
| different between databases by type name, precision etc.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/calcite/sql/validate/SqlConformance.html" title="org.apache.calcite.sql.validate中的接口">SqlConformance</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#getConformance--">getConformance</a></span>()</code> |
| <div class="block">Returns the <a href="../../../../org/apache/calcite/sql/validate/SqlConformance.html" title="org.apache.calcite.sql.validate中的接口"><code>SqlConformance</code></a> that matches this dialect.</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/calcite/sql/SqlDialect.DatabaseProduct.html" title="org.apache.calcite.sql中的枚举">SqlDialect.DatabaseProduct</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#getDatabaseProduct--">getDatabaseProduct</a></span>()</code> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> |
| <div class="block"><span class="deprecationComment">To be removed without replacement</span></div> |
| </div> |
| </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/calcite/config/NullCollation.html" title="org.apache.calcite.config中的枚举">NullCollation</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#getNullCollation--">getNullCollation</a></span>()</code> |
| <div class="block">Returns how NULL values are sorted if an ORDER BY item does not contain |
| NULLS ASCENDING or NULLS DESCENDING.</div> |
| </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../org/apache/calcite/sql/SqlDialect.DatabaseProduct.html" title="org.apache.calcite.sql中的枚举">SqlDialect.DatabaseProduct</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#getProduct-java.lang.String-java.lang.String-">getProduct</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> productName, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> productVersion)</code> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> </div> |
| </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code>org.apache.calcite.avatica.util.Casing</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#getQuotedCasing--">getQuotedCasing</a></span>()</code> |
| <div class="block">Returns how quoted identifiers are stored.</div> |
| </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code>protected org.apache.calcite.avatica.util.Quoting</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#getQuoting--">getQuoting</a></span>()</code> |
| <div class="block">Returns the quoting scheme, or null if the combination of |
| <a href="../../../../org/apache/calcite/sql/SqlDialect.html#identifierQuoteString"><code>identifierQuoteString</code></a> and <a href="../../../../org/apache/calcite/sql/SqlDialect.html#identifierEndQuoteString"><code>identifierEndQuoteString</code></a> |
| does not correspond to any known quoting scheme.</div> |
| </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#getSingleRowTableName--">getSingleRowTableName</a></span>()</code> |
| <div class="block">Returns the name of the system table that has precisely one row.</div> |
| </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/calcite/rel/type/RelDataTypeSystem.html" title="org.apache.calcite.rel.type中的接口">RelDataTypeSystem</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#getTypeSystem--">getTypeSystem</a></span>()</code> |
| <div class="block">Returns the type system implementation for this dialect.</div> |
| </td> |
| </tr> |
| <tr id="i18" class="altColor"> |
| <td class="colFirst"><code>org.apache.calcite.avatica.util.Casing</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#getUnquotedCasing--">getUnquotedCasing</a></span>()</code> |
| <div class="block">Returns how unquoted identifiers are stored.</div> |
| </td> |
| </tr> |
| <tr id="i19" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#hasImplicitTableAlias--">hasImplicitTableAlias</a></span>()</code> |
| <div class="block">Returns whether a qualified table in the FROM clause has an implicit alias |
| which consists of just the table name.</div> |
| </td> |
| </tr> |
| <tr id="i20" class="altColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#identifierNeedsQuote-java.lang.String-">identifierNeedsQuote</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> val)</code> |
| <div class="block">Returns whether to quote an identifier.</div> |
| </td> |
| </tr> |
| <tr id="i21" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#isCaseSensitive--">isCaseSensitive</a></span>()</code> |
| <div class="block">Returns whether matching of identifiers is case-sensitive.</div> |
| </td> |
| </tr> |
| <tr id="i22" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#quoteIdentifier-java.lang.String-">quoteIdentifier</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> val)</code> |
| <div class="block">Encloses an identifier in quotation marks appropriate for the current SQL |
| dialect.</div> |
| </td> |
| </tr> |
| <tr id="i23" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="java.lang中的类或接口">StringBuilder</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#quoteIdentifier-java.lang.StringBuilder-java.util.List-">quoteIdentifier</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="java.lang中的类或接口">StringBuilder</a> buf, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>> identifiers)</code> |
| <div class="block">Quotes a multi-part identifier.</div> |
| </td> |
| </tr> |
| <tr id="i24" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="java.lang中的类或接口">StringBuilder</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#quoteIdentifier-java.lang.StringBuilder-java.lang.String-">quoteIdentifier</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="java.lang中的类或接口">StringBuilder</a> buf, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> val)</code> |
| <div class="block">Encloses an identifier in quotation marks appropriate for the current SQL |
| dialect, writing the result to a <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="java.lang中的类或接口"><code>StringBuilder</code></a>.</div> |
| </td> |
| </tr> |
| <tr id="i25" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#quoteStringLiteral-java.lang.String-">quoteStringLiteral</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> val)</code> |
| <div class="block">Converts a string into a string literal.</div> |
| </td> |
| </tr> |
| <tr id="i26" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#quoteStringLiteral-java.lang.StringBuilder-java.lang.String-java.lang.String-">quoteStringLiteral</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="java.lang中的类或接口">StringBuilder</a> buf, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> charsetName, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> val)</code> |
| <div class="block">Appends a string literal to a buffer.</div> |
| </td> |
| </tr> |
| <tr id="i27" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#quoteStringLiteralUnicode-java.lang.StringBuilder-java.lang.String-">quoteStringLiteralUnicode</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="java.lang中的类或接口">StringBuilder</a> buf, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> val)</code> |
| <div class="block">Converts a string into a unicode string literal.</div> |
| </td> |
| </tr> |
| <tr id="i28" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#quoteTimestampLiteral-java.sql.Timestamp-">quoteTimestampLiteral</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/sql/Timestamp.html?is-external=true" title="java.sql中的类或接口">Timestamp</a> timestamp)</code> |
| <div class="block">Converts a timestamp to a SQL timestamp literal, e.g.</div> |
| </td> |
| </tr> |
| <tr id="i29" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#requiresAliasForFromItems--">requiresAliasForFromItems</a></span>()</code> |
| <div class="block">Whether a sub-query in the FROM clause must have an alias.</div> |
| </td> |
| </tr> |
| <tr id="i30" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#rewriteSingleValueExpr-org.apache.calcite.sql.SqlNode-">rewriteSingleValueExpr</a></span>(<a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> aggCall)</code> |
| <div class="block">Rewrite SINGLE_VALUE into expression based on database variants |
| E.g.</div> |
| </td> |
| </tr> |
| <tr id="i31" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#supportsAggregateFunction-org.apache.calcite.sql.SqlKind-">supportsAggregateFunction</a></span>(<a href="../../../../org/apache/calcite/sql/SqlKind.html" title="org.apache.calcite.sql中的枚举">SqlKind</a> kind)</code> </td> |
| </tr> |
| <tr id="i32" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#supportsAliasedValues--">supportsAliasedValues</a></span>()</code> |
| <div class="block">Returns whether the dialect supports VALUES in a sub-query with |
| and an "AS t(column, ...)" values to define column names.</div> |
| </td> |
| </tr> |
| <tr id="i33" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#supportsCharSet--">supportsCharSet</a></span>()</code> |
| <div class="block">Returns whether the dialect supports character set names as part of a |
| data type, for instance <code>VARCHAR(30) CHARACTER SET `ISO-8859-1`</code>.</div> |
| </td> |
| </tr> |
| <tr id="i34" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#supportsDataType-org.apache.calcite.rel.type.RelDataType-">supportsDataType</a></span>(<a href="../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a> type)</code> |
| <div class="block">Returns whether this dialect supports a given type.</div> |
| </td> |
| </tr> |
| <tr id="i35" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#supportsFunction-org.apache.calcite.sql.SqlOperator-org.apache.calcite.rel.type.RelDataType-java.util.List-">supportsFunction</a></span>(<a href="../../../../org/apache/calcite/sql/SqlOperator.html" title="org.apache.calcite.sql中的类">SqlOperator</a> operator, |
| <a href="../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a> type, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a>> paramTypes)</code> |
| <div class="block">Returns whether this dialect supports a given function or operator.</div> |
| </td> |
| </tr> |
| <tr id="i36" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#supportsGroupByWithCube--">supportsGroupByWithCube</a></span>()</code> |
| <div class="block">Returns whether this dialect supports "WITH CUBE" in "GROUP BY" clause.</div> |
| </td> |
| </tr> |
| <tr id="i37" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#supportsGroupByWithRollup--">supportsGroupByWithRollup</a></span>()</code> |
| <div class="block">Returns whether this dialect supports "WITH ROLLUP" in the "GROUP BY" |
| clause.</div> |
| </td> |
| </tr> |
| <tr id="i38" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#supportsImplicitTypeCoercion-org.apache.calcite.rex.RexCall-">supportsImplicitTypeCoercion</a></span>(<a href="../../../../org/apache/calcite/rex/RexCall.html" title="org.apache.calcite.rex中的类">RexCall</a> call)</code> |
| <div class="block">Returns whether the dialect supports implicit type coercion.</div> |
| </td> |
| </tr> |
| <tr id="i39" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#supportsNestedAggregations--">supportsNestedAggregations</a></span>()</code> |
| <div class="block">Returns whether the dialect supports nested aggregations, for instance |
| <code>SELECT SUM(SUM(1)) </code>.</div> |
| </td> |
| </tr> |
| <tr id="i40" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#supportsOffsetFetch--">supportsOffsetFetch</a></span>()</code> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> |
| <div class="block"><span class="deprecationComment">This method is no longer used. To change how the dialect |
| unparses offset/fetch, override the <a href="../../../../org/apache/calcite/sql/SqlDialect.html#unparseOffsetFetch-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlNode-"><code>unparseOffsetFetch(org.apache.calcite.sql.SqlWriter, org.apache.calcite.sql.SqlNode, org.apache.calcite.sql.SqlNode)</code></a> method.</span></div> |
| </div> |
| </td> |
| </tr> |
| <tr id="i41" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#supportsWindowFunctions--">supportsWindowFunctions</a></span>()</code> |
| <div class="block">Returns whether this dialect supports window functions (OVER clause).</div> |
| </td> |
| </tr> |
| <tr id="i42" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#unparseCall-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlCall-int-int-">unparseCall</a></span>(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a> writer, |
| <a href="../../../../org/apache/calcite/sql/SqlCall.html" title="org.apache.calcite.sql中的类">SqlCall</a> call, |
| int leftPrec, |
| int rightPrec)</code> </td> |
| </tr> |
| <tr id="i43" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#unparseDateTimeLiteral-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlAbstractDateTimeLiteral-int-int-">unparseDateTimeLiteral</a></span>(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a> writer, |
| <a href="../../../../org/apache/calcite/sql/SqlAbstractDateTimeLiteral.html" title="org.apache.calcite.sql中的类">SqlAbstractDateTimeLiteral</a> literal, |
| int leftPrec, |
| int rightPrec)</code> </td> |
| </tr> |
| <tr id="i44" class="altColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#unparseFetchUsingAnsi-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlNode-">unparseFetchUsingAnsi</a></span>(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a> writer, |
| <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> offset, |
| <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> fetch)</code> |
| <div class="block">Unparses offset/fetch using ANSI standard "OFFSET offset ROWS FETCH NEXT |
| fetch ROWS ONLY" syntax.</div> |
| </td> |
| </tr> |
| <tr id="i45" class="rowColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#unparseFetchUsingLimit-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlNode-">unparseFetchUsingLimit</a></span>(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a> writer, |
| <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> offset, |
| <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> fetch)</code> |
| <div class="block">Unparses offset/fetch using "LIMIT fetch OFFSET offset" syntax.</div> |
| </td> |
| </tr> |
| <tr id="i46" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#unparseOffsetFetch-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlNode-">unparseOffsetFetch</a></span>(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a> writer, |
| <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> offset, |
| <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> fetch)</code> |
| <div class="block">Converts an offset and fetch into SQL.</div> |
| </td> |
| </tr> |
| <tr id="i47" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#unparseSqlDatetimeArithmetic-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlCall-org.apache.calcite.sql.SqlKind-int-int-">unparseSqlDatetimeArithmetic</a></span>(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a> writer, |
| <a href="../../../../org/apache/calcite/sql/SqlCall.html" title="org.apache.calcite.sql中的类">SqlCall</a> call, |
| <a href="../../../../org/apache/calcite/sql/SqlKind.html" title="org.apache.calcite.sql中的枚举">SqlKind</a> sqlKind, |
| int leftPrec, |
| int rightPrec)</code> </td> |
| </tr> |
| <tr id="i48" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#unparseSqlIntervalLiteral-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlIntervalLiteral-int-int-">unparseSqlIntervalLiteral</a></span>(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a> writer, |
| <a href="../../../../org/apache/calcite/sql/SqlIntervalLiteral.html" title="org.apache.calcite.sql中的类">SqlIntervalLiteral</a> literal, |
| int leftPrec, |
| int rightPrec)</code> |
| <div class="block">Converts an interval literal to a SQL string.</div> |
| </td> |
| </tr> |
| <tr id="i49" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#unparseSqlIntervalQualifier-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlIntervalQualifier-org.apache.calcite.rel.type.RelDataTypeSystem-">unparseSqlIntervalQualifier</a></span>(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a> writer, |
| <a href="../../../../org/apache/calcite/sql/SqlIntervalQualifier.html" title="org.apache.calcite.sql中的类">SqlIntervalQualifier</a> qualifier, |
| <a href="../../../../org/apache/calcite/rel/type/RelDataTypeSystem.html" title="org.apache.calcite.rel.type中的接口">RelDataTypeSystem</a> typeSystem)</code> |
| <div class="block">Converts an interval qualifier to a SQL string.</div> |
| </td> |
| </tr> |
| <tr id="i50" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#unparseTopN-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlNode-">unparseTopN</a></span>(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a> writer, |
| <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> offset, |
| <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> fetch)</code> |
| <div class="block">Converts a fetch into a "SELECT TOP(fetch)".</div> |
| </td> |
| </tr> |
| <tr id="i51" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlDialect.html#unquoteStringLiteral-java.lang.String-">unquoteStringLiteral</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> val)</code> |
| <div class="block">Converts a string literal back into a string.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a> |
| <h3>从类继承的方法 java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="java.lang中的类或接口">Object</a></h3> |
| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="java.lang中的类或接口">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="java.lang中的类或接口">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="java.lang中的类或接口">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="java.lang中的类或接口">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="java.lang中的类或接口">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="java.lang中的类或接口">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="java.lang中的类或接口">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="java.lang中的类或接口">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="java.lang中的类或接口">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="java.lang中的类或接口">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="java.lang中的类或接口">wait</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ============ FIELD DETAIL =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="field.detail"> |
| <!-- --> |
| </a> |
| <h3>字段详细资料</h3> |
| <a name="LOGGER"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>LOGGER</h4> |
| <pre>protected static final org.slf4j.Logger LOGGER</pre> |
| </li> |
| </ul> |
| <a name="EMPTY_CONTEXT"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>EMPTY_CONTEXT</h4> |
| <pre>public static final <a href="../../../../org/apache/calcite/sql/SqlDialect.Context.html" title="org.apache.calcite.sql中的接口">SqlDialect.Context</a> EMPTY_CONTEXT</pre> |
| <div class="block">Empty context.</div> |
| </li> |
| </ul> |
| <a name="DUMMY"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>DUMMY</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="java.lang中的类或接口">@Deprecated</a> |
| public static final <a href="../../../../org/apache/calcite/sql/SqlDialect.html" title="org.apache.calcite.sql中的类">SqlDialect</a> DUMMY</pre> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> <span class="deprecationComment">Use <a href="../../../../org/apache/calcite/sql/dialect/AnsiSqlDialect.html#DEFAULT"><code>AnsiSqlDialect.DEFAULT</code></a> instead.</span></div> |
| </li> |
| </ul> |
| <a name="CALCITE"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>CALCITE</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="java.lang中的类或接口">@Deprecated</a> |
| public static final <a href="../../../../org/apache/calcite/sql/SqlDialect.html" title="org.apache.calcite.sql中的类">SqlDialect</a> CALCITE</pre> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> <span class="deprecationComment">Use <a href="../../../../org/apache/calcite/sql/dialect/CalciteSqlDialect.html#DEFAULT"><code>CalciteSqlDialect.DEFAULT</code></a> instead.</span></div> |
| </li> |
| </ul> |
| <a name="BUILT_IN_OPERATORS_LIST"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>BUILT_IN_OPERATORS_LIST</h4> |
| <pre>protected static final <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="java.util中的类或接口">Set</a><<a href="../../../../org/apache/calcite/sql/SqlOperator.html" title="org.apache.calcite.sql中的类">SqlOperator</a>> BUILT_IN_OPERATORS_LIST</pre> |
| <div class="block">Built-in scalar functions and operators common for every dialect.</div> |
| </li> |
| </ul> |
| <a name="identifierQuoteString"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>identifierQuoteString</h4> |
| <pre>protected final <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> identifierQuoteString</pre> |
| </li> |
| </ul> |
| <a name="identifierEndQuoteString"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>identifierEndQuoteString</h4> |
| <pre>protected final <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> identifierEndQuoteString</pre> |
| </li> |
| </ul> |
| <a name="identifierEscapedQuote"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>identifierEscapedQuote</h4> |
| <pre>protected final <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> identifierEscapedQuote</pre> |
| </li> |
| </ul> |
| <a name="literalQuoteString"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>literalQuoteString</h4> |
| <pre>protected final <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> literalQuoteString</pre> |
| </li> |
| </ul> |
| <a name="literalEndQuoteString"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>literalEndQuoteString</h4> |
| <pre>protected final <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> literalEndQuoteString</pre> |
| </li> |
| </ul> |
| <a name="literalEscapedQuote"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>literalEscapedQuote</h4> |
| <pre>protected final <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> literalEscapedQuote</pre> |
| </li> |
| </ul> |
| <a name="nullCollation"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>nullCollation</h4> |
| <pre>protected final <a href="../../../../org/apache/calcite/config/NullCollation.html" title="org.apache.calcite.config中的枚举">NullCollation</a> nullCollation</pre> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.detail"> |
| <!-- --> |
| </a> |
| <h3>构造器详细资料</h3> |
| <a name="SqlDialect-org.apache.calcite.sql.SqlDialect.DatabaseProduct-java.lang.String-java.lang.String-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>SqlDialect</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="java.lang中的类或接口">@Deprecated</a> |
| public SqlDialect(<a href="../../../../org/apache/calcite/sql/SqlDialect.DatabaseProduct.html" title="org.apache.calcite.sql中的枚举">SqlDialect.DatabaseProduct</a> databaseProduct, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> databaseProductName, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> identifierQuoteString)</pre> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> </div> |
| </li> |
| </ul> |
| <a name="SqlDialect-org.apache.calcite.sql.SqlDialect.DatabaseProduct-java.lang.String-java.lang.String-org.apache.calcite.config.NullCollation-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>SqlDialect</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="java.lang中的类或接口">@Deprecated</a> |
| public SqlDialect(<a href="../../../../org/apache/calcite/sql/SqlDialect.DatabaseProduct.html" title="org.apache.calcite.sql中的枚举">SqlDialect.DatabaseProduct</a> databaseProduct, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> databaseProductName, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> identifierQuoteString, |
| <a href="../../../../org/apache/calcite/config/NullCollation.html" title="org.apache.calcite.config中的枚举">NullCollation</a> nullCollation)</pre> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> <span class="deprecationComment">Use <a href="../../../../org/apache/calcite/sql/SqlDialect.html#SqlDialect-org.apache.calcite.sql.SqlDialect.Context-"><code>SqlDialect(Context)</code></a></span></div> |
| <div class="block">Creates a SqlDialect.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>databaseProduct</code> - Database product; may be UNKNOWN, never null</dd> |
| <dd><code>databaseProductName</code> - Database product name from JDBC driver</dd> |
| <dd><code>identifierQuoteString</code> - String to quote identifiers. Null if quoting |
| is not supported. If "[", close quote is |
| deemed to be "]".</dd> |
| <dd><code>nullCollation</code> - Whether NULL values appear first or last</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="SqlDialect-org.apache.calcite.sql.SqlDialect.Context-"> |
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| </a> |
| <ul class="blockListLast"> |
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| <h4>SqlDialect</h4> |
| <pre>public SqlDialect(<a href="../../../../org/apache/calcite/sql/SqlDialect.Context.html" title="org.apache.calcite.sql中的接口">SqlDialect.Context</a> context)</pre> |
| <div class="block">Creates a SqlDialect.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>context</code> - All the information necessary to create a dialect</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <!-- ============ METHOD DETAIL ========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.detail"> |
| <!-- --> |
| </a> |
| <h3>方法详细资料</h3> |
| <a name="create-java.sql.DatabaseMetaData-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>create</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="java.lang中的类或接口">@Deprecated</a> |
| public static <a href="../../../../org/apache/calcite/sql/SqlDialect.html" title="org.apache.calcite.sql中的类">SqlDialect</a> create(<a href="https://docs.oracle.com/javase/8/docs/api/java/sql/DatabaseMetaData.html?is-external=true" title="java.sql中的类或接口">DatabaseMetaData</a> databaseMetaData)</pre> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> <span class="deprecationComment">Replaced by <a href="../../../../org/apache/calcite/sql/SqlDialectFactory.html" title="org.apache.calcite.sql中的接口"><code>SqlDialectFactory</code></a></span></div> |
| <div class="block">Creates a <code>SqlDialect</code> from a DatabaseMetaData. |
| |
| <p>Does not maintain a reference to the DatabaseMetaData -- or, more |
| importantly, to its <a href="https://docs.oracle.com/javase/8/docs/api/java/sql/Connection.html?is-external=true" title="java.sql中的类或接口"><code>Connection</code></a> -- after this call has |
| returned.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>databaseMetaData</code> - used to determine which dialect of SQL to generate</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getProduct-java.lang.String-java.lang.String-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getProduct</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="java.lang中的类或接口">@Deprecated</a> |
| public static <a href="../../../../org/apache/calcite/sql/SqlDialect.DatabaseProduct.html" title="org.apache.calcite.sql中的枚举">SqlDialect.DatabaseProduct</a> getProduct(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> productName, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> productVersion)</pre> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> </div> |
| <div class="block">Converts a product name and version (per the JDBC driver) into a product |
| enumeration.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>productName</code> - Product name</dd> |
| <dd><code>productVersion</code> - Product version</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>database product</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getTypeSystem--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getTypeSystem</h4> |
| <pre>public <a href="../../../../org/apache/calcite/rel/type/RelDataTypeSystem.html" title="org.apache.calcite.rel.type中的接口">RelDataTypeSystem</a> getTypeSystem()</pre> |
| <div class="block">Returns the type system implementation for this dialect.</div> |
| </li> |
| </ul> |
| <a name="quoteIdentifier-java.lang.String-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>quoteIdentifier</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> quoteIdentifier(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> val)</pre> |
| <div class="block">Encloses an identifier in quotation marks appropriate for the current SQL |
| dialect. |
| |
| <p>For example, <code>quoteIdentifier("emp")</code> yields a string |
| containing <code>"emp"</code> in Oracle, and a string containing <code> |
| [emp]</code> in Access.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>val</code> - Identifier to quote</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Quoted identifier</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="quoteIdentifier-java.lang.StringBuilder-java.lang.String-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>quoteIdentifier</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="java.lang中的类或接口">StringBuilder</a> quoteIdentifier(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="java.lang中的类或接口">StringBuilder</a> buf, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> val)</pre> |
| <div class="block">Encloses an identifier in quotation marks appropriate for the current SQL |
| dialect, writing the result to a <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="java.lang中的类或接口"><code>StringBuilder</code></a>. |
| |
| <p>For example, <code>quoteIdentifier("emp")</code> yields a string |
| containing <code>"emp"</code> in Oracle, and a string containing <code> |
| [emp]</code> in Access.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>buf</code> - Buffer</dd> |
| <dd><code>val</code> - Identifier to quote</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>The buffer</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="quoteIdentifier-java.lang.StringBuilder-java.util.List-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>quoteIdentifier</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="java.lang中的类或接口">StringBuilder</a> quoteIdentifier(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="java.lang中的类或接口">StringBuilder</a> buf, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>> identifiers)</pre> |
| <div class="block">Quotes a multi-part identifier.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>buf</code> - Buffer</dd> |
| <dd><code>identifiers</code> - List of parts of the identifier to quote</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>The buffer</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="identifierNeedsQuote-java.lang.String-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>identifierNeedsQuote</h4> |
| <pre>protected boolean identifierNeedsQuote(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> val)</pre> |
| <div class="block">Returns whether to quote an identifier. |
| By default, all identifiers are quoted.</div> |
| </li> |
| </ul> |
| <a name="quoteStringLiteral-java.lang.String-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>quoteStringLiteral</h4> |
| <pre>public final <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> quoteStringLiteral(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> val)</pre> |
| <div class="block">Converts a string into a string literal. |
| |
| <p>For example, <code>"can't run"</code> becomes <code>"'can''t run'"</code>.</div> |
| </li> |
| </ul> |
| <a name="quoteStringLiteral-java.lang.StringBuilder-java.lang.String-java.lang.String-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>quoteStringLiteral</h4> |
| <pre>public void quoteStringLiteral(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="java.lang中的类或接口">StringBuilder</a> buf, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> charsetName, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> val)</pre> |
| <div class="block">Appends a string literal to a buffer.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>buf</code> - Buffer</dd> |
| <dd><code>charsetName</code> - Character set name, e.g. "utf16", or null</dd> |
| <dd><code>val</code> - String value</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="unparseCall-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlCall-int-int-"> |
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| </a> |
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| <h4>unparseCall</h4> |
| <pre>public void unparseCall(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a> writer, |
| <a href="../../../../org/apache/calcite/sql/SqlCall.html" title="org.apache.calcite.sql中的类">SqlCall</a> call, |
| int leftPrec, |
| int rightPrec)</pre> |
| </li> |
| </ul> |
| <a name="unparseDateTimeLiteral-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlAbstractDateTimeLiteral-int-int-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>unparseDateTimeLiteral</h4> |
| <pre>public void unparseDateTimeLiteral(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a> writer, |
| <a href="../../../../org/apache/calcite/sql/SqlAbstractDateTimeLiteral.html" title="org.apache.calcite.sql中的类">SqlAbstractDateTimeLiteral</a> literal, |
| int leftPrec, |
| int rightPrec)</pre> |
| </li> |
| </ul> |
| <a name="unparseSqlDatetimeArithmetic-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlCall-org.apache.calcite.sql.SqlKind-int-int-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>unparseSqlDatetimeArithmetic</h4> |
| <pre>public void unparseSqlDatetimeArithmetic(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a> writer, |
| <a href="../../../../org/apache/calcite/sql/SqlCall.html" title="org.apache.calcite.sql中的类">SqlCall</a> call, |
| <a href="../../../../org/apache/calcite/sql/SqlKind.html" title="org.apache.calcite.sql中的枚举">SqlKind</a> sqlKind, |
| int leftPrec, |
| int rightPrec)</pre> |
| </li> |
| </ul> |
| <a name="unparseSqlIntervalQualifier-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlIntervalQualifier-org.apache.calcite.rel.type.RelDataTypeSystem-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>unparseSqlIntervalQualifier</h4> |
| <pre>public void unparseSqlIntervalQualifier(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a> writer, |
| <a href="../../../../org/apache/calcite/sql/SqlIntervalQualifier.html" title="org.apache.calcite.sql中的类">SqlIntervalQualifier</a> qualifier, |
| <a href="../../../../org/apache/calcite/rel/type/RelDataTypeSystem.html" title="org.apache.calcite.rel.type中的接口">RelDataTypeSystem</a> typeSystem)</pre> |
| <div class="block">Converts an interval qualifier to a SQL string. The default implementation |
| returns strings such as |
| <code>INTERVAL '1 2:3:4' DAY(4) TO SECOND(4)</code>.</div> |
| </li> |
| </ul> |
| <a name="unparseSqlIntervalLiteral-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlIntervalLiteral-int-int-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>unparseSqlIntervalLiteral</h4> |
| <pre>public void unparseSqlIntervalLiteral(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a> writer, |
| <a href="../../../../org/apache/calcite/sql/SqlIntervalLiteral.html" title="org.apache.calcite.sql中的类">SqlIntervalLiteral</a> literal, |
| int leftPrec, |
| int rightPrec)</pre> |
| <div class="block">Converts an interval literal to a SQL string. The default implementation |
| returns strings such as |
| <code>INTERVAL '1 2:3:4' DAY(4) TO SECOND(4)</code>.</div> |
| </li> |
| </ul> |
| <a name="containsNonAscii-java.lang.String-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>containsNonAscii</h4> |
| <pre>protected static boolean containsNonAscii(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> s)</pre> |
| <div class="block">Returns whether the string contains any characters outside the |
| comfortable 7-bit ASCII range (32 through 127, plus linefeed (10) and |
| carriage return (13)). |
| |
| <p>Such characters can be used unquoted in SQL character literals.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>s</code> - String</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Whether string contains any non-7-bit-ASCII characters</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="quoteStringLiteralUnicode-java.lang.StringBuilder-java.lang.String-"> |
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| </a> |
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| <h4>quoteStringLiteralUnicode</h4> |
| <pre>public void quoteStringLiteralUnicode(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="java.lang中的类或接口">StringBuilder</a> buf, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> val)</pre> |
| <div class="block">Converts a string into a unicode string literal. For example, |
| <code>can't{tab}run\</code> becomes <code>u'can''t\0009run\\'</code>.</div> |
| </li> |
| </ul> |
| <a name="unquoteStringLiteral-java.lang.String-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>unquoteStringLiteral</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> unquoteStringLiteral(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> val)</pre> |
| <div class="block">Converts a string literal back into a string. For example, <code>'can''t |
| run'</code> becomes <code>can't run</code>.</div> |
| </li> |
| </ul> |
| <a name="allowsAs--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>allowsAs</h4> |
| <pre>protected boolean allowsAs()</pre> |
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| </ul> |
| <a name="requiresAliasForFromItems--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>requiresAliasForFromItems</h4> |
| <pre>public boolean requiresAliasForFromItems()</pre> |
| <div class="block">Whether a sub-query in the FROM clause must have an alias. |
| |
| <p>For example, in PostgreSQL, this query is legal: |
| |
| <blockquote><code>SELECT * FROM (SELECT * FROM Emp) As e</code></blockquote> |
| |
| <p>but remove the alias <code>e</code> and it is not: |
| |
| <blockquote><code>SELECT * FROM (SELECT * FROM Emp)</code></blockquote> |
| |
| <p>In Oracle, both queries are legal.</div> |
| </li> |
| </ul> |
| <a name="hasImplicitTableAlias--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>hasImplicitTableAlias</h4> |
| <pre>public boolean hasImplicitTableAlias()</pre> |
| <div class="block">Returns whether a qualified table in the FROM clause has an implicit alias |
| which consists of just the table name. |
| |
| <p>For example, in <a href="../../../../org/apache/calcite/sql/SqlDialect.DatabaseProduct.html#ORACLE"><code>SqlDialect.DatabaseProduct.ORACLE</code></a> |
| |
| <blockquote>SELECT * FROM sales.emp</blockquote> |
| |
| <p>is equivalent to |
| |
| <blockquote>SELECT * FROM sales.emp AS emp</blockquote> |
| |
| <p>and therefore |
| |
| <blockquote>SELECT emp.empno FROM sales.emp</blockquote> |
| |
| <p>is valid. But <a href="../../../../org/apache/calcite/sql/SqlDialect.DatabaseProduct.html#DB2"><code>SqlDialect.DatabaseProduct.DB2</code></a> does not have an implicit |
| alias, so the previous query it not valid; you need to write |
| |
| <blockquote>SELECT sales.emp.empno FROM sales.emp</blockquote> |
| |
| <p>Returns true for all databases except DB2.</div> |
| </li> |
| </ul> |
| <a name="quoteTimestampLiteral-java.sql.Timestamp-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>quoteTimestampLiteral</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> quoteTimestampLiteral(<a href="https://docs.oracle.com/javase/8/docs/api/java/sql/Timestamp.html?is-external=true" title="java.sql中的类或接口">Timestamp</a> timestamp)</pre> |
| <div class="block">Converts a timestamp to a SQL timestamp literal, e.g. |
| <code>TIMESTAMP '2009-12-17 12:34:56'</code>. |
| |
| <p>Timestamp values do not have a time zone. We therefore interpret them |
| as the number of milliseconds after the UTC epoch, and the formatted |
| value is that time in UTC. |
| |
| <p>In particular, |
| |
| <blockquote><code>quoteTimestampLiteral(new Timestamp(0));</code> |
| </blockquote> |
| |
| <p>returns <code>TIMESTAMP '1970-01-01 00:00:00'</code>, regardless of the JVM's |
| time zone.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>timestamp</code> - Timestamp</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>SQL timestamp literal</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getDatabaseProduct--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getDatabaseProduct</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="java.lang中的类或接口">@Deprecated</a> |
| public <a href="../../../../org/apache/calcite/sql/SqlDialect.DatabaseProduct.html" title="org.apache.calcite.sql中的枚举">SqlDialect.DatabaseProduct</a> getDatabaseProduct()</pre> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> <span class="deprecationComment">To be removed without replacement</span></div> |
| <div class="block">Returns the database this dialect belongs to, |
| <a href="../../../../org/apache/calcite/sql/SqlDialect.DatabaseProduct.html#UNKNOWN"><code>SqlDialect.DatabaseProduct.UNKNOWN</code></a> if not known, never null. |
| |
| <p>Please be judicious in how you use this method. If you wish to determine |
| whether a dialect has a particular capability or behavior, it is usually |
| better to add a method to SqlDialect and override that method in particular |
| sub-classes of SqlDialect.</div> |
| <dl> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Database product</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="supportsCharSet--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>supportsCharSet</h4> |
| <pre>public boolean supportsCharSet()</pre> |
| <div class="block">Returns whether the dialect supports character set names as part of a |
| data type, for instance <code>VARCHAR(30) CHARACTER SET `ISO-8859-1`</code>.</div> |
| </li> |
| </ul> |
| <a name="supportsAggregateFunction-org.apache.calcite.sql.SqlKind-"> |
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| </a> |
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| <h4>supportsAggregateFunction</h4> |
| <pre>public boolean supportsAggregateFunction(<a href="../../../../org/apache/calcite/sql/SqlKind.html" title="org.apache.calcite.sql中的枚举">SqlKind</a> kind)</pre> |
| </li> |
| </ul> |
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| <h4>supportsWindowFunctions</h4> |
| <pre>public boolean supportsWindowFunctions()</pre> |
| <div class="block">Returns whether this dialect supports window functions (OVER clause).</div> |
| </li> |
| </ul> |
| <a name="supportsFunction-org.apache.calcite.sql.SqlOperator-org.apache.calcite.rel.type.RelDataType-java.util.List-"> |
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| <pre>public boolean supportsFunction(<a href="../../../../org/apache/calcite/sql/SqlOperator.html" title="org.apache.calcite.sql中的类">SqlOperator</a> operator, |
| <a href="../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a> type, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a>> paramTypes)</pre> |
| <div class="block">Returns whether this dialect supports a given function or operator. |
| It only applies to built-in scalar functions and operators, since |
| user-defined functions and procedures should be read by JdbcSchema.</div> |
| </li> |
| </ul> |
| <a name="getCalendarPolicy--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getCalendarPolicy</h4> |
| <pre>public <a href="../../../../org/apache/calcite/sql/SqlDialect.CalendarPolicy.html" title="org.apache.calcite.sql中的枚举">SqlDialect.CalendarPolicy</a> getCalendarPolicy()</pre> |
| </li> |
| </ul> |
| <a name="supportsDataType-org.apache.calcite.rel.type.RelDataType-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>supportsDataType</h4> |
| <pre>public boolean supportsDataType(<a href="../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a> type)</pre> |
| <div class="block">Returns whether this dialect supports a given type.</div> |
| </li> |
| </ul> |
| <a name="getCastSpec-org.apache.calcite.rel.type.RelDataType-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getCastSpec</h4> |
| <pre>public <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> getCastSpec(<a href="../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a> type)</pre> |
| <div class="block">Returns SqlNode for type in "cast(column as type)", which might be |
| different between databases by type name, precision etc.</div> |
| </li> |
| </ul> |
| <a name="rewriteSingleValueExpr-org.apache.calcite.sql.SqlNode-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>rewriteSingleValueExpr</h4> |
| <pre>public <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> rewriteSingleValueExpr(<a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> aggCall)</pre> |
| <div class="block">Rewrite SINGLE_VALUE into expression based on database variants |
| E.g. HSQLDB, MYSQL, ORACLE, etc</div> |
| </li> |
| </ul> |
| <a name="emulateNullDirection-org.apache.calcite.sql.SqlNode-boolean-boolean-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>emulateNullDirection</h4> |
| <pre>public <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> emulateNullDirection(<a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> node, |
| boolean nullsFirst, |
| boolean desc)</pre> |
| <div class="block">Returns the SqlNode for emulating the null direction for the given field |
| or <code>null</code> if no emulation needs to be done.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>node</code> - The SqlNode representing the expression</dd> |
| <dd><code>nullsFirst</code> - Whether nulls should come first</dd> |
| <dd><code>desc</code> - Whether the sort direction is |
| <a href="../../../../org/apache/calcite/rel/RelFieldCollation.Direction.html#DESCENDING"><code>RelFieldCollation.Direction.DESCENDING</code></a> or |
| <a href="../../../../org/apache/calcite/rel/RelFieldCollation.Direction.html#STRICTLY_DESCENDING"><code>RelFieldCollation.Direction.STRICTLY_DESCENDING</code></a></dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>A SqlNode for null direction emulation or <code>null</code> if not required</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="emulateJoinTypeForCrossJoin--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>emulateJoinTypeForCrossJoin</h4> |
| <pre>public <a href="../../../../org/apache/calcite/sql/JoinType.html" title="org.apache.calcite.sql中的枚举">JoinType</a> emulateJoinTypeForCrossJoin()</pre> |
| </li> |
| </ul> |
| <a name="emulateNullDirectionWithIsNull-org.apache.calcite.sql.SqlNode-boolean-boolean-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>emulateNullDirectionWithIsNull</h4> |
| <pre>protected <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> emulateNullDirectionWithIsNull(<a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> node, |
| boolean nullsFirst, |
| boolean desc)</pre> |
| </li> |
| </ul> |
| <a name="supportsOffsetFetch--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>supportsOffsetFetch</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="java.lang中的类或接口">@Deprecated</a> |
| public boolean supportsOffsetFetch()</pre> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> <span class="deprecationComment">This method is no longer used. To change how the dialect |
| unparses offset/fetch, override the <a href="../../../../org/apache/calcite/sql/SqlDialect.html#unparseOffsetFetch-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlNode-"><code>unparseOffsetFetch(org.apache.calcite.sql.SqlWriter, org.apache.calcite.sql.SqlNode, org.apache.calcite.sql.SqlNode)</code></a> method.</span></div> |
| <div class="block">Returns whether the dialect supports OFFSET/FETCH clauses |
| introduced by SQL:2008, for instance |
| <code>OFFSET 10 ROWS FETCH NEXT 20 ROWS ONLY</code>. |
| If false, we assume that the dialect supports the alternative syntax |
| <code>LIMIT 20 OFFSET 10</code>.</div> |
| </li> |
| </ul> |
| <a name="unparseOffsetFetch-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlNode-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>unparseOffsetFetch</h4> |
| <pre>public void unparseOffsetFetch(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a> writer, |
| <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> offset, |
| <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> fetch)</pre> |
| <div class="block">Converts an offset and fetch into SQL. |
| |
| <p>At least one of <code>offset</code> and <code>fetch</code> must be provided. |
| |
| <p>Common options: |
| <ul> |
| <li><code>OFFSET offset ROWS FETCH NEXT fetch ROWS ONLY</code> |
| (ANSI standard SQL, Oracle, PostgreSQL, and the default) |
| <li><code>LIMIT fetch OFFSET offset</code> (Apache Hive, MySQL, Redshift) |
| </ul></div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>writer</code> - Writer</dd> |
| <dd><code>offset</code> - Number of rows to skip before emitting, or null</dd> |
| <dd><code>fetch</code> - Number of rows to fetch, or null</dd> |
| <dt><span class="seeLabel">另请参阅:</span></dt> |
| <dd><a href="../../../../org/apache/calcite/sql/SqlDialect.html#unparseFetchUsingAnsi-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlNode-"><code>unparseFetchUsingAnsi(SqlWriter, SqlNode, SqlNode)</code></a>, |
| <a href="../../../../org/apache/calcite/sql/SqlDialect.html#unparseFetchUsingLimit-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlNode-"><code>unparseFetchUsingLimit(SqlWriter, SqlNode, SqlNode)</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="unparseTopN-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlNode-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>unparseTopN</h4> |
| <pre>public void unparseTopN(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a> writer, |
| <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> offset, |
| <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> fetch)</pre> |
| <div class="block">Converts a fetch into a "SELECT TOP(fetch)". |
| |
| <p>A dialect that uses "TOP" syntax should override this method to print |
| "TOP(fetch)", and override <a href="../../../../org/apache/calcite/sql/SqlDialect.html#unparseOffsetFetch-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlNode-"><code>unparseOffsetFetch(org.apache.calcite.sql.SqlWriter, org.apache.calcite.sql.SqlNode, org.apache.calcite.sql.SqlNode)</code></a> to no-op. |
| |
| <p>The default implementation of this method is no-op.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>writer</code> - Writer</dd> |
| <dd><code>offset</code> - Number of rows to skip before emitting, or null</dd> |
| <dd><code>fetch</code> - Number of rows to fetch, or null</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="unparseFetchUsingAnsi-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlNode-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>unparseFetchUsingAnsi</h4> |
| <pre>protected final void unparseFetchUsingAnsi(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a> writer, |
| <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> offset, |
| <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> fetch)</pre> |
| <div class="block">Unparses offset/fetch using ANSI standard "OFFSET offset ROWS FETCH NEXT |
| fetch ROWS ONLY" syntax.</div> |
| </li> |
| </ul> |
| <a name="unparseFetchUsingLimit-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlNode-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>unparseFetchUsingLimit</h4> |
| <pre>protected final void unparseFetchUsingLimit(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a> writer, |
| <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> offset, |
| <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a> fetch)</pre> |
| <div class="block">Unparses offset/fetch using "LIMIT fetch OFFSET offset" syntax.</div> |
| </li> |
| </ul> |
| <a name="supportsNestedAggregations--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>supportsNestedAggregations</h4> |
| <pre>public boolean supportsNestedAggregations()</pre> |
| <div class="block">Returns whether the dialect supports nested aggregations, for instance |
| <code>SELECT SUM(SUM(1)) </code>.</div> |
| </li> |
| </ul> |
| <a name="supportsGroupByWithRollup--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>supportsGroupByWithRollup</h4> |
| <pre>public boolean supportsGroupByWithRollup()</pre> |
| <div class="block">Returns whether this dialect supports "WITH ROLLUP" in the "GROUP BY" |
| clause. |
| |
| <p>For instance, in MySQL version 5, |
| |
| <blockquote> |
| <code> |
| SELECT deptno, job, COUNT(*) AS c |
| FROM emp |
| GROUP BY deptno, job WITH ROLLUP |
| </code> |
| </blockquote> |
| |
| <p>is equivalent to standard SQL |
| |
| <blockquote> |
| <code> |
| SELECT deptno, job, COUNT(*) AS c |
| FROM emp |
| GROUP BY ROLLUP(deptno, job) |
| ORDER BY deptno, job |
| </code> |
| </blockquote> |
| |
| <p>The "WITH ROLLUP" clause was introduced in MySQL and is not standard |
| SQL. |
| |
| <p>See also <a href="../../../../org/apache/calcite/sql/SqlDialect.html#supportsAggregateFunction-org.apache.calcite.sql.SqlKind-"><code>supportsAggregateFunction(SqlKind)</code></a> applied to |
| <a href="../../../../org/apache/calcite/sql/SqlKind.html#ROLLUP"><code>SqlKind.ROLLUP</code></a>, which returns true in MySQL 8 and higher.</div> |
| </li> |
| </ul> |
| <a name="supportsGroupByWithCube--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>supportsGroupByWithCube</h4> |
| <pre>public boolean supportsGroupByWithCube()</pre> |
| <div class="block">Returns whether this dialect supports "WITH CUBE" in "GROUP BY" clause.</div> |
| </li> |
| </ul> |
| <a name="getNullCollation--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getNullCollation</h4> |
| <pre>public <a href="../../../../org/apache/calcite/config/NullCollation.html" title="org.apache.calcite.config中的枚举">NullCollation</a> getNullCollation()</pre> |
| <div class="block">Returns how NULL values are sorted if an ORDER BY item does not contain |
| NULLS ASCENDING or NULLS DESCENDING.</div> |
| </li> |
| </ul> |
| <a name="defaultNullDirection-org.apache.calcite.rel.RelFieldCollation.Direction-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>defaultNullDirection</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/javax/annotation/Nonnull.html?is-external=true" title="javax.annotation中的类或接口">@Nonnull</a> |
| public <a href="../../../../org/apache/calcite/rel/RelFieldCollation.NullDirection.html" title="org.apache.calcite.rel中的枚举">RelFieldCollation.NullDirection</a> defaultNullDirection(<a href="../../../../org/apache/calcite/rel/RelFieldCollation.Direction.html" title="org.apache.calcite.rel中的枚举">RelFieldCollation.Direction</a> direction)</pre> |
| <div class="block">Returns whether NULL values are sorted first or last, in this dialect, |
| in an ORDER BY item of a given direction.</div> |
| </li> |
| </ul> |
| <a name="supportsAliasedValues--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>supportsAliasedValues</h4> |
| <pre>public boolean supportsAliasedValues()</pre> |
| <div class="block">Returns whether the dialect supports VALUES in a sub-query with |
| and an "AS t(column, ...)" values to define column names. |
| |
| <p>Currently, only Oracle does not. For this, we generate "SELECT v0 AS c0, |
| v1 AS c1 ... UNION ALL ...". We may need to refactor this method when we |
| support VALUES for other dialects.</div> |
| </li> |
| </ul> |
| <a name="supportsImplicitTypeCoercion-org.apache.calcite.rex.RexCall-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>supportsImplicitTypeCoercion</h4> |
| <pre>public boolean supportsImplicitTypeCoercion(<a href="../../../../org/apache/calcite/rex/RexCall.html" title="org.apache.calcite.rex中的类">RexCall</a> call)</pre> |
| <div class="block">Returns whether the dialect supports implicit type coercion. |
| |
| <p>Most of the sql dialects support implicit type coercion, so we make this method |
| default return true. For instance, "cast('10' as integer) > 5" |
| can be simplified to "'10' > 5" if the dialect supports implicit type coercion |
| for VARCHAR and INTEGER comparison. |
| |
| <p>For sql dialect that does not support implicit type coercion, such as the BigQuery, |
| we can not convert '10' into INT64 implicitly. |
| |
| <p>Now this method is used for some auxiliary decision when translating some <a href="../../../../org/apache/calcite/rex/RexCall.html" title="org.apache.calcite.rex中的类"><code>RexCall</code></a>s, |
| see SqlImplementor#stripCastFromString for details.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>call</code> - the call to make decision</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getSingleRowTableName--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getSingleRowTableName</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/javax/annotation/Nullable.html?is-external=true" title="javax.annotation中的类或接口">@Nullable</a> |
| public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>> getSingleRowTableName()</pre> |
| <div class="block">Returns the name of the system table that has precisely one row. |
| If there is no such table, returns null, and we will generate SELECT with |
| no FROM clause. |
| |
| <p>For <code>VALUES 1</code>, |
| Oracle returns ["DUAL"] and we generate "SELECT 1 FROM DUAL"; |
| MySQL returns null and we generate "SELECT 1".</div> |
| </li> |
| </ul> |
| <a name="configureParser-org.apache.calcite.sql.parser.SqlParser.ConfigBuilder-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>configureParser</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/javax/annotation/Nonnull.html?is-external=true" title="javax.annotation中的类或接口">@Nonnull</a> |
| public <a href="../../../../org/apache/calcite/sql/parser/SqlParser.ConfigBuilder.html" title="org.apache.calcite.sql.parser中的类">SqlParser.ConfigBuilder</a> configureParser(<a href="../../../../org/apache/calcite/sql/parser/SqlParser.ConfigBuilder.html" title="org.apache.calcite.sql.parser中的类">SqlParser.ConfigBuilder</a> configBuilder)</pre> |
| <div class="block">Copies settings from this dialect into a parser configuration. |
| |
| <p><code>SqlDialect</code>, <code>SqlParser.Config</code> and <a href="../../../../org/apache/calcite/sql/validate/SqlConformance.html" title="org.apache.calcite.sql.validate中的接口"><code>SqlConformance</code></a> |
| cover different aspects of the same thing - the dialect of SQL spoken by a |
| database - and this method helps to bridge between them. (The aspects are, |
| respectively, generating SQL to send to a source database, parsing SQL |
| sent to Calcite, and validating queries sent to Calcite. It makes sense to |
| keep them as separate interfaces because they are used by different |
| modules.) |
| |
| <p>The settings copied may differ among dialects, and may change over time, |
| but currently include the following: |
| |
| <ul> |
| <li><a href="../../../../org/apache/calcite/sql/SqlDialect.html#getQuoting--"><code>getQuoting()</code></a> |
| <li><a href="../../../../org/apache/calcite/sql/SqlDialect.html#getQuotedCasing--"><code>getQuotedCasing()</code></a> |
| <li><a href="../../../../org/apache/calcite/sql/SqlDialect.html#getUnquotedCasing--"><code>getUnquotedCasing()</code></a> |
| <li><a href="../../../../org/apache/calcite/sql/SqlDialect.html#isCaseSensitive--"><code>isCaseSensitive()</code></a> |
| <li><a href="../../../../org/apache/calcite/sql/SqlDialect.html#getConformance--"><code>getConformance()</code></a> |
| </ul></div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>configBuilder</code> - Parser configuration builder</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>The configuration builder</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getConformance--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getConformance</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/javax/annotation/Nonnull.html?is-external=true" title="javax.annotation中的类或接口">@Nonnull</a> |
| public <a href="../../../../org/apache/calcite/sql/validate/SqlConformance.html" title="org.apache.calcite.sql.validate中的接口">SqlConformance</a> getConformance()</pre> |
| <div class="block">Returns the <a href="../../../../org/apache/calcite/sql/validate/SqlConformance.html" title="org.apache.calcite.sql.validate中的接口"><code>SqlConformance</code></a> that matches this dialect. |
| |
| <p>The base implementation returns its best guess, based upon |
| <a href="../../../../org/apache/calcite/sql/SqlDialect.html#databaseProduct"><code>databaseProduct</code></a>; sub-classes may override.</div> |
| </li> |
| </ul> |
| <a name="getQuoting--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getQuoting</h4> |
| <pre>protected org.apache.calcite.avatica.util.Quoting getQuoting()</pre> |
| <div class="block">Returns the quoting scheme, or null if the combination of |
| <a href="../../../../org/apache/calcite/sql/SqlDialect.html#identifierQuoteString"><code>identifierQuoteString</code></a> and <a href="../../../../org/apache/calcite/sql/SqlDialect.html#identifierEndQuoteString"><code>identifierEndQuoteString</code></a> |
| does not correspond to any known quoting scheme.</div> |
| </li> |
| </ul> |
| <a name="getUnquotedCasing--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getUnquotedCasing</h4> |
| <pre>public org.apache.calcite.avatica.util.Casing getUnquotedCasing()</pre> |
| <div class="block">Returns how unquoted identifiers are stored.</div> |
| </li> |
| </ul> |
| <a name="getQuotedCasing--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getQuotedCasing</h4> |
| <pre>public org.apache.calcite.avatica.util.Casing getQuotedCasing()</pre> |
| <div class="block">Returns how quoted identifiers are stored.</div> |
| </li> |
| </ul> |
| <a name="isCaseSensitive--"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>isCaseSensitive</h4> |
| <pre>public boolean isCaseSensitive()</pre> |
| <div class="block">Returns whether matching of identifiers is case-sensitive.</div> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| </div> |
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