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| <h2 title="Class TestCsvWithSchema" class="title">Class TestCsvWithSchema</h2> |
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| <li><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/BaseCsvTest.html" title="class in org.apache.drill.exec.store.easy.text.compliant">org.apache.drill.exec.store.easy.text.compliant.BaseCsvTest</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.drill.exec.store.easy.text.compliant.TestCsvWithSchema</li> |
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| <pre>public class <span class="typeNameLabel">TestCsvWithSchema</span> |
| extends <a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/BaseCsvTest.html" title="class in org.apache.drill.exec.store.easy.text.compliant">BaseCsvTest</a></pre> |
| <div class="block">Test the schema mechanism in the context of a simple CSV tables. |
| The focus here is on the schema mechanism, which can be explored |
| with simple tables of just a few rows.</div> |
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| <td class="colFirst"><code>protected static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#FILE1_NAME">FILE1_NAME</a></span></code> </td> |
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| <code><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/BaseCsvTest.html#BIG_COL_SIZE">BIG_COL_SIZE</a>, <a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/BaseCsvTest.html#EMPTY_FILE">EMPTY_FILE</a>, <a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/BaseCsvTest.html#FILE_N_NAME">FILE_N_NAME</a>, <a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/BaseCsvTest.html#NESTED_DIR">NESTED_DIR</a>, <a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/BaseCsvTest.html#NESTED_FILE">NESTED_FILE</a>, <a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/BaseCsvTest.html#PART_DIR">PART_DIR</a>, <a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/BaseCsvTest.html#ROOT_FILE">ROOT_FILE</a>, <a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/BaseCsvTest.html#SCHEMA_BATCH_ENABLED">SCHEMA_BATCH_ENABLED</a>, <a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/BaseCsvTest.html#secondFile">secondFile</a>, <a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/BaseCsvTest.html#testDir">testDir</a>, <a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/BaseCsvTest.html#validHeaders">validHeaders</a></code></li> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#TestCsvWithSchema--">TestCsvWithSchema</a></span>()</code> </td> |
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| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
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| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#setup--">setup</a></span>()</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testBasicSchema--">testBasicSchema</a></span>()</code> |
| <div class="block">Test the simplest possible case: a table with one file: |
| |
| Column in projection, table, and schema |
| Column in projection and table but not in schema. |
| Column in projection and schema, but not in table. |
| Column in projection, but not in schema or table. |
| </div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testBlankCols--">testBlankCols</a></span>()</code> |
| <div class="block">Demonstrate that CSV uses a comma to introduce a column, |
| even if that column has no data.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testBlankColsWithNoDefaultValue--">testBlankColsWithNoDefaultValue</a></span>()</code> |
| <div class="block">As above, but with a non-nullable numeric column with a default |
| value.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testBlankColsWithNullableSchema--">testBlankColsWithNullableSchema</a></span>()</code> |
| <div class="block">As above, but with a nullable numeric column.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testBlankColsWithSchema--">testBlankColsWithSchema</a></span>()</code> |
| <div class="block">Use the same data set as above tests, but use a schema to do type |
| conversion.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testBool--">testBool</a></span>()</code> |
| <div class="block">Test the many ways to specify True for boolean columns.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testDateColDefault--">testDateColDefault</a></span>()</code> |
| <div class="block">Use a user-provided default value for a missing required column.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testDecimal--">testDecimal</a></span>()</code> |
| <div class="block">Basic decimal sanity test showing rounding, using default values, |
| and so on.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testDecimalDefaultOverflow--">testDecimalDefaultOverflow</a></span>()</code> |
| <div class="block">Test proper handling of overflow for a default value.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testDecimalDefaultRound--">testDecimalDefaultRound</a></span>()</code> |
| <div class="block">Verify that the decimal default value is rounded according |
| to the scale specified in the decimal type.</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testDecimalNoPrecOrScale--">testDecimalNoPrecOrScale</a></span>()</code> |
| <div class="block">Verify that a decimal type without precision or scale defaults |
| to precision of 38, scale of 0.</div> |
| </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testDecimalNoScale--">testDecimalNoScale</a></span>()</code> |
| <div class="block">Verify that a decimal type with no scale defaults to a scale of 0.</div> |
| </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testDecimalOverflow--">testDecimalOverflow</a></span>()</code> |
| <div class="block">Test decimal overflow during data reads.</div> |
| </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testExplicitSort--">testExplicitSort</a></span>()</code> |
| <div class="block">Because V3 uses VARCHAR for missing columns, and handles ragged rows, there |
| is no vector corruption, and the sort operator sees a uniform schema, even |
| without a schema.</div> |
| </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testInvalidDecimalSchema--">testInvalidDecimalSchema</a></span>()</code> </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testMissingCols--">testMissingCols</a></span>()</code> </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testMissingColsNullable--">testMissingColsNullable</a></span>()</code> |
| <div class="block">Demonstrate that CSV works for a schema with nullable types when columns |
| are missing (there is no comma to introduce an empty field in the data.)</div> |
| </td> |
| </tr> |
| <tr id="i18" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testMissingColsReq--">testMissingColsReq</a></span>()</code> |
| <div class="block">Verify that, if a schema is provided, a column is missing, |
| and there is no default, that the mode is left at required and |
| the column is filled with zeros.</div> |
| </td> |
| </tr> |
| <tr id="i19" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testMissingColsReqDefault--">testMissingColsReqDefault</a></span>()</code> |
| <div class="block">Verify the behavior of missing columns, not null mode, with |
| a default value.</div> |
| </td> |
| </tr> |
| <tr id="i20" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testMissingRequiredCol--">testMissingRequiredCol</a></span>()</code> |
| <div class="block">Show that the projection framework generates a reasonable default value |
| if told to create a required column that does not exist.</div> |
| </td> |
| </tr> |
| <tr id="i21" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testMultiFileSchema--">testMultiFileSchema</a></span>()</code> |
| <div class="block">Use a schema with explicit projection to get a consistent view |
| of the table schema, even if columns are missing, rows are ragged, |
| and column order changes.</div> |
| </td> |
| </tr> |
| <tr id="i22" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testMultiFileSchemaMissingCol--">testMultiFileSchemaMissingCol</a></span>()</code> |
| <div class="block">Test the case that a file does not contain a required column (in this case, |
| id in the third file.) There are two choices.</div> |
| </td> |
| </tr> |
| <tr id="i23" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testMultiFragmentStrictSchema--">testMultiFragmentStrictSchema</a></span>()</code> |
| <div class="block">Test a strict schema where it is needed most: in a scan with multiple |
| fragments, each of which sees a different reader schema.</div> |
| </td> |
| </tr> |
| <tr id="i24" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testRequiredColDefault--">testRequiredColDefault</a></span>()</code> |
| <div class="block">Use a user-provided default value for a missing required column.</div> |
| </td> |
| </tr> |
| <tr id="i25" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testSchemaExplicitSort--">testSchemaExplicitSort</a></span>()</code> |
| <div class="block">Adding a schema makes the data types more uniform, and fills in defaults |
| for missing columns.</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/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testWildcardLenientSchema--">testWildcardLenientSchema</a></span>()</code> |
| <div class="block">Test lenient wildcard projection.</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/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testWildcardSortFailure--">testWildcardSortFailure</a></span>()</code> |
| <div class="block">Show that, without schema, the hard schema change for the "missing" |
| gender column causes an error in the sort operator when presented with |
| one batch in which gender is VARCHAR, another in which it is |
| Nullable INT.</div> |
| </td> |
| </tr> |
| <tr id="i28" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/store/easy/text/compliant/TestCsvWithSchema.html#testWildcardStrictSchema--">testWildcardStrictSchema</a></span>()</code> |
| <div class="block">Test wildcard projection with a strict schema: only schema columns are |
| projected.</div> |
| </td> |
| </tr> |
| </table> |
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| <code><a href="../../../../../../../../org/apache/drill/test/DrillTest.html#escapeJsonString-java.lang.String-">escapeJsonString</a>, <a href="../../../../../../../../org/apache/drill/test/DrillTest.html#finishDrillTest--">finishDrillTest</a>, <a href="../../../../../../../../org/apache/drill/test/DrillTest.html#initDrillTest--">initDrillTest</a></code></li> |
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| <h3>Methods inherited from class java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3> |
| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
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| <!-- ============ FIELD DETAIL =========== --> |
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| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../../../constant-values.html#org.apache.drill.exec.store.easy.text.compliant.TestCsvWithSchema.FILE1_NAME">Constant Field Values</a></dd> |
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| <h4>TestCsvWithSchema</h4> |
| <pre>public TestCsvWithSchema()</pre> |
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| <h3>Method Detail</h3> |
| <a name="setup--"> |
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| <h4>setup</h4> |
| <pre>public static void setup() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
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| <h4>testBasicSchema</h4> |
| <pre>public void testBasicSchema() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Test the simplest possible case: a table with one file: |
| <ul> |
| <li>Column in projection, table, and schema</li> |
| <li>Column in projection and table but not in schema.</li> |
| <li>Column in projection and schema, but not in table.</li> |
| <li>Column in projection, but not in schema or table.</li> |
| </ul></div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
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| <a name="testMissingRequiredCol--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>testMissingRequiredCol</h4> |
| <pre>public void testMissingRequiredCol() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Show that the projection framework generates a reasonable default value |
| if told to create a required column that does not exist. In this case, |
| the default default [sic] value for an INT column is 0. There is no |
| "default" value set in the schema, so we use a "default default" instead.)</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
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| <a name="testRequiredColDefault--"> |
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| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>testRequiredColDefault</h4> |
| <pre>public void testRequiredColDefault() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Use a user-provided default value for a missing required column.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
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| <a name="testDateColDefault--"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>testDateColDefault</h4> |
| <pre>public void testDateColDefault() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Use a user-provided default value for a missing required column.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="testMultiFileSchema--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>testMultiFileSchema</h4> |
| <pre>public void testMultiFileSchema() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Use a schema with explicit projection to get a consistent view |
| of the table schema, even if columns are missing, rows are ragged, |
| and column order changes. |
| <p> |
| Force the scans to occur in distinct fragments so the order of the |
| file batches is random.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="testWildcardSortFailure--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>testWildcardSortFailure</h4> |
| <pre>public void testWildcardSortFailure() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Show that, without schema, the hard schema change for the "missing" |
| gender column causes an error in the sort operator when presented with |
| one batch in which gender is VARCHAR, another in which it is |
| Nullable INT. This is a consequence of using SELECT * on a distributed |
| scan.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
| </li> |
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| <a name="testExplicitSort--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>testExplicitSort</h4> |
| <pre>public void testExplicitSort() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Because V3 uses VARCHAR for missing columns, and handles ragged rows, there |
| is no vector corruption, and the sort operator sees a uniform schema, even |
| without a schema. |
| <p> |
| This and other tests enable multiple scan fragments, even for small files, |
| then run the test multiple times to generate the result set in different |
| orders (file1 first sometimes, file2 other times.)</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="testSchemaExplicitSort--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>testSchemaExplicitSort</h4> |
| <pre>public void testSchemaExplicitSort() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Adding a schema makes the data types more uniform, and fills in defaults |
| for missing columns. Note that the default is not applied (at least at |
| present) if a column is missing within a file that says it has the |
| column.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
| </li> |
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| <h4>testMultiFileSchemaMissingCol</h4> |
| <pre>public void testMultiFileSchemaMissingCol() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Test the case that a file does not contain a required column (in this case, |
| id in the third file.) There are two choices. 1) we could fail the query, |
| 2) we can muddle through as best we can. The scan framework chooses to |
| muddle through by assuming a default value of 0 for the missing int |
| column. |
| <p> |
| Inserts an ORDER BY to force a single batch in a known order. Assumes |
| the other ORDER BY tests pass. |
| <p> |
| This test shows that having consistent types is sufficient for the sort |
| operator to work; the DAG will include a project operator that reorders |
| the columns when produced by readers in different orders. (Column ordering |
| is more an abstract concept anyway in a columnar system such as Drill.)</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>testWildcardLenientSchema</h4> |
| <pre>public void testWildcardLenientSchema() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Test lenient wildcard projection. |
| The schema contains all columns in the table; the schema ensures |
| a consistent schema regardless of file shape or read order. The sort |
| operator works because it sees the consistent schema, despite great |
| variation in inputs.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
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| <pre>public void testWildcardStrictSchema() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Test wildcard projection with a strict schema: only schema columns are |
| projected.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
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| <pre>public void testMultiFragmentStrictSchema() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Test a strict schema where it is needed most: in a scan with multiple |
| fragments, each of which sees a different reader schema. The output schema |
| ensures that each scan independently reports the same schema, so that the |
| downstream sort operator gets a single consistent batch schema.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
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| <a name="testBool--"> |
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| <h4>testBool</h4> |
| <pre>public void testBool() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Test the many ways to specify True for boolean columns. Anything that |
| is not true is false.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="testDecimal--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>testDecimal</h4> |
| <pre>public void testDecimal() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Basic decimal sanity test showing rounding, using default values, |
| and so on.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="testDecimalNoPrecOrScale--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>testDecimalNoPrecOrScale</h4> |
| <pre>public void testDecimalNoPrecOrScale() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Verify that a decimal type without precision or scale defaults |
| to precision of 38, scale of 0.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="testDecimalNoScale--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>testDecimalNoScale</h4> |
| <pre>public void testDecimalNoScale() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Verify that a decimal type with no scale defaults to a scale of 0.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="testDecimalDefaultRound--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>testDecimalDefaultRound</h4> |
| <pre>public void testDecimalDefaultRound() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Verify that the decimal default value is rounded according |
| to the scale specified in the decimal type.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="testDecimalOverflow--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>testDecimalOverflow</h4> |
| <pre>public void testDecimalOverflow() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Test decimal overflow during data reads. The overflow occurs after |
| rounding the data value of 99999.9 to 100000.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="testDecimalDefaultOverflow--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>testDecimalDefaultOverflow</h4> |
| <pre>public void testDecimalDefaultOverflow() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Test proper handling of overflow for a default value. In this case, |
| the overflow occurs after rounding.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="testInvalidDecimalSchema--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>testInvalidDecimalSchema</h4> |
| <pre>public void testInvalidDecimalSchema() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="testMissingCols--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>testMissingCols</h4> |
| <pre>public void testMissingCols() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="testMissingColsReq--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>testMissingColsReq</h4> |
| <pre>public void testMissingColsReq() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Verify that, if a schema is provided, a column is missing, |
| and there is no default, that the mode is left at required and |
| the column is filled with zeros. Note that this behavior is |
| specific to the text readers: if have no schema, even an missing |
| VARCHAR column will be REQUIRED and set to an empty string |
| (reason: if the column does appear it will be a required VARCHAR, |
| so, to be consistent, missing columns are also required.)</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="testMissingColsReqDefault--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>testMissingColsReqDefault</h4> |
| <pre>public void testMissingColsReqDefault() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Verify the behavior of missing columns, not null mode, with |
| a default value.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="testMissingColsNullable--"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>testMissingColsNullable</h4> |
| <pre>public void testMissingColsNullable() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Demonstrate that CSV works for a schema with nullable types when columns |
| are missing (there is no comma to introduce an empty field in the data.)</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="testBlankCols--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>testBlankCols</h4> |
| <pre>public void testBlankCols() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Demonstrate that CSV uses a comma to introduce a column, |
| even if that column has no data. In this case, CSV assumes the |
| value of the column is a blank string. |
| <p> |
| Such a schema cannot be converted to a number or date column, |
| even nullable, because a blank string is neither a valid number nor |
| a valid date.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="testBlankColsWithSchema--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>testBlankColsWithSchema</h4> |
| <pre>public void testBlankColsWithSchema() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">Use the same data set as above tests, but use a schema to do type |
| conversion. Blank columns become 0 for numeric non-nullable, nulls for |
| nullable non-numeric.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="testBlankColsWithNullableSchema--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>testBlankColsWithNullableSchema</h4> |
| <pre>public void testBlankColsWithNullableSchema() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">As above, but with a nullable numeric column. Here, by default, |
| blank values become nulls.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="testBlankColsWithNoDefaultValue--"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>testBlankColsWithNoDefaultValue</h4> |
| <pre>public void testBlankColsWithNoDefaultValue() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <div class="block">As above, but with a non-nullable numeric column with a default |
| value.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
| </dl> |
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