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<h1 class="title">Calcite 1.21.0 API</h1>
</div>
<main role="main">
<div class="contentContainer">
<table class="overviewSummary">
<caption><span>Packages</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Package</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor" id="i0">
<th class="colFirst" scope="row"><a href="org/apache/calcite/package-summary.html">org.apache.calcite</a></th>
<td class="colLast">
<div class="block">Main package for Calcite, the dynamic data management platform.</div>
</td>
</tr>
<tr class="rowColor" id="i1">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/package-summary.html">org.apache.calcite.adapter</a></th>
<td class="colLast">
<div class="block">Calcite adapters.</div>
</td>
</tr>
<tr class="altColor" id="i2">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/cassandra/package-summary.html">org.apache.calcite.adapter.cassandra</a></th>
<td class="colLast">
<div class="block">Cassandra query provider.</div>
</td>
</tr>
<tr class="rowColor" id="i3">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/clone/package-summary.html">org.apache.calcite.adapter.clone</a></th>
<td class="colLast">
<div class="block">Provides utility classes.</div>
</td>
</tr>
<tr class="altColor" id="i4">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/csv/package-summary.html">org.apache.calcite.adapter.csv</a></th>
<td class="colLast">
<div class="block">Calcite query provider that reads from CSV (comma-separated value) files.</div>
</td>
</tr>
<tr class="rowColor" id="i5">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/druid/package-summary.html">org.apache.calcite.adapter.druid</a></th>
<td class="colLast">
<div class="block">Query provider based on a Druid database.</div>
</td>
</tr>
<tr class="altColor" id="i6">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/elasticsearch/package-summary.html">org.apache.calcite.adapter.elasticsearch</a></th>
<td class="colLast">
<div class="block">Query provider based on an Elasticsearch2 DB.</div>
</td>
</tr>
<tr class="rowColor" id="i7">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/enumerable/package-summary.html">org.apache.calcite.adapter.enumerable</a></th>
<td class="colLast">
<div class="block">Query optimizer rules for Java calling convention.</div>
</td>
</tr>
<tr class="altColor" id="i8">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/enumerable/generated/package-summary.html">org.apache.calcite.adapter.enumerable.generated</a></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor" id="i9">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/enumerable/impl/package-summary.html">org.apache.calcite.adapter.enumerable.impl</a></th>
<td class="colLast">
<div class="block">Calcite-specific classes for implementation of regular and window aggregates.</div>
</td>
</tr>
<tr class="altColor" id="i10">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/file/package-summary.html">org.apache.calcite.adapter.file</a></th>
<td class="colLast">
<div class="block">Calcite query provider that reads from web tables (HTML).</div>
</td>
</tr>
<tr class="rowColor" id="i11">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/geode/rel/package-summary.html">org.apache.calcite.adapter.geode.rel</a></th>
<td class="colLast">
<div class="block">Query provider based on Apache Geode (Gemfire) In Memory Data Grid</div>
</td>
</tr>
<tr class="altColor" id="i12">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/geode/simple/package-summary.html">org.apache.calcite.adapter.geode.simple</a></th>
<td class="colLast">
<div class="block">Query provider based on Apache Geode (Gemfire) In Memory Data Grid</div>
</td>
</tr>
<tr class="rowColor" id="i13">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/geode/util/package-summary.html">org.apache.calcite.adapter.geode.util</a></th>
<td class="colLast">
<div class="block">Query provider based on Apache Geode (Gemfire) In Memory Data Grid</div>
</td>
</tr>
<tr class="altColor" id="i14">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/java/package-summary.html">org.apache.calcite.adapter.java</a></th>
<td class="colLast">
<div class="block">Query provider based on Java in-memory data
structures.</div>
</td>
</tr>
<tr class="rowColor" id="i15">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/jdbc/package-summary.html">org.apache.calcite.adapter.jdbc</a></th>
<td class="colLast">
<div class="block">Query provider based on a JDBC data source.</div>
</td>
</tr>
<tr class="altColor" id="i16">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/kafka/package-summary.html">org.apache.calcite.adapter.kafka</a></th>
<td class="colLast">
<div class="block">Kafka query provider.</div>
</td>
</tr>
<tr class="rowColor" id="i17">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/mongodb/package-summary.html">org.apache.calcite.adapter.mongodb</a></th>
<td class="colLast">
<div class="block">Query provider based on a MongoDB database.</div>
</td>
</tr>
<tr class="altColor" id="i18">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/os/package-summary.html">org.apache.calcite.adapter.os</a></th>
<td class="colLast">
<div class="block">The OS adapter contains various table functions that let you query data
sources in your operating system and environment.</div>
</td>
</tr>
<tr class="rowColor" id="i19">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/pig/package-summary.html">org.apache.calcite.adapter.pig</a></th>
<td class="colLast">
<div class="block">Pig query provider.</div>
</td>
</tr>
<tr class="altColor" id="i20">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/spark/package-summary.html">org.apache.calcite.adapter.spark</a></th>
<td class="colLast">
<div class="block">Adapter based on the Apache Spark data management system.</div>
</td>
</tr>
<tr class="rowColor" id="i21">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/splunk/package-summary.html">org.apache.calcite.adapter.splunk</a></th>
<td class="colLast">
<div class="block">Splunk query provider.</div>
</td>
</tr>
<tr class="altColor" id="i22">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/splunk/search/package-summary.html">org.apache.calcite.adapter.splunk.search</a></th>
<td class="colLast">
<div class="block">Executes queries via Splunk's REST API.</div>
</td>
</tr>
<tr class="rowColor" id="i23">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/splunk/util/package-summary.html">org.apache.calcite.adapter.splunk.util</a></th>
<td class="colLast">
<div class="block">Utilities for RPC to Splunk.</div>
</td>
</tr>
<tr class="altColor" id="i24">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/tpcds/package-summary.html">org.apache.calcite.adapter.tpcds</a></th>
<td class="colLast">
<div class="block">TPC-DS schema.</div>
</td>
</tr>
<tr class="rowColor" id="i25">
<th class="colFirst" scope="row"><a href="org/apache/calcite/adapter/tpch/package-summary.html">org.apache.calcite.adapter.tpch</a></th>
<td class="colLast">
<div class="block">TPC-H schema.</div>
</td>
</tr>
<tr class="altColor" id="i26">
<th class="colFirst" scope="row"><a href="org/apache/calcite/benchmarks/package-summary.html">org.apache.calcite.benchmarks</a></th>
<td class="colLast">
<div class="block">JMH benchmarks for Calcite</div>
</td>
</tr>
<tr class="rowColor" id="i27">
<th class="colFirst" scope="row"><a href="org/apache/calcite/chinook/package-summary.html">org.apache.calcite.chinook</a></th>
<td class="colLast">
<div class="block">End to end tests.</div>
</td>
</tr>
<tr class="altColor" id="i28">
<th class="colFirst" scope="row"><a href="org/apache/calcite/config/package-summary.html">org.apache.calcite.config</a></th>
<td class="colLast">
<div class="block">Configuration.</div>
</td>
</tr>
<tr class="rowColor" id="i29">
<th class="colFirst" scope="row"><a href="org/apache/calcite/example/maze/package-summary.html">org.apache.calcite.example.maze</a></th>
<td class="colLast">
<div class="block">User-defined table function that generates a maze.</div>
</td>
</tr>
<tr class="altColor" id="i30">
<th class="colFirst" scope="row"><a href="org/apache/calcite/interpreter/package-summary.html">org.apache.calcite.interpreter</a></th>
<td class="colLast">
<div class="block">Provides an implementation of relational expressions using an interpreter.</div>
</td>
</tr>
<tr class="rowColor" id="i31">
<th class="colFirst" scope="row"><a href="org/apache/calcite/jdbc/package-summary.html">org.apache.calcite.jdbc</a></th>
<td class="colLast">
<div class="block">JDBC driver for Calcite.</div>
</td>
</tr>
<tr class="altColor" id="i32">
<th class="colFirst" scope="row"><a href="org/apache/calcite/linq4j/package-summary.html">org.apache.calcite.linq4j</a></th>
<td class="colLast">
<div class="block">Language-integrated query for Java (linq4j) main package.</div>
</td>
</tr>
<tr class="rowColor" id="i33">
<th class="colFirst" scope="row"><a href="org/apache/calcite/linq4j/function/package-summary.html">org.apache.calcite.linq4j.function</a></th>
<td class="colLast">
<div class="block">Contains definitions of functions and predicates.</div>
</td>
</tr>
<tr class="altColor" id="i34">
<th class="colFirst" scope="row"><a href="org/apache/calcite/linq4j/tree/package-summary.html">org.apache.calcite.linq4j.tree</a></th>
<td class="colLast">
<div class="block">Object model for Java expressions.</div>
</td>
</tr>
<tr class="rowColor" id="i35">
<th class="colFirst" scope="row"><a href="org/apache/calcite/materialize/package-summary.html">org.apache.calcite.materialize</a></th>
<td class="colLast">
<div class="block">Management of materialized query results.</div>
</td>
</tr>
<tr class="altColor" id="i36">
<th class="colFirst" scope="row"><a href="org/apache/calcite/model/package-summary.html">org.apache.calcite.model</a></th>
<td class="colLast">
<div class="block">Provides model files, in JSON format, defining schemas and other metadata.</div>
</td>
</tr>
<tr class="rowColor" id="i37">
<th class="colFirst" scope="row"><a href="org/apache/calcite/piglet/package-summary.html">org.apache.calcite.piglet</a></th>
<td class="colLast">
<div class="block">Piglet, a Pig-like language.</div>
</td>
</tr>
<tr class="altColor" id="i38">
<th class="colFirst" scope="row"><a href="org/apache/calcite/plan/package-summary.html">org.apache.calcite.plan</a></th>
<td class="colLast">
<div class="block">Defines interfaces for constructing rule-based optimizers of
relational expressions.</div>
</td>
</tr>
<tr class="rowColor" id="i39">
<th class="colFirst" scope="row"><a href="org/apache/calcite/plan/hep/package-summary.html">org.apache.calcite.plan.hep</a></th>
<td class="colLast">
<div class="block">Provides a heuristic planner implementation for the interfaces in
<a href="org/apache/calcite/plan/package-summary.html"><code>org.apache.calcite.plan</code></a>.</div>
</td>
</tr>
<tr class="altColor" id="i40">
<th class="colFirst" scope="row"><a href="org/apache/calcite/plan/volcano/package-summary.html">org.apache.calcite.plan.volcano</a></th>
<td class="colLast">
<div class="block">Optimizes relational expressions.</div>
</td>
</tr>
<tr class="rowColor" id="i41">
<th class="colFirst" scope="row"><a href="org/apache/calcite/prepare/package-summary.html">org.apache.calcite.prepare</a></th>
<td class="colLast">
<div class="block">Preparation of queries (parsing, planning and implementation).</div>
</td>
</tr>
<tr class="altColor" id="i42">
<th class="colFirst" scope="row"><a href="org/apache/calcite/profile/package-summary.html">org.apache.calcite.profile</a></th>
<td class="colLast">
<div class="block">Utilities to analyze data sets.</div>
</td>
</tr>
<tr class="rowColor" id="i43">
<th class="colFirst" scope="row"><a href="org/apache/calcite/rel/package-summary.html">org.apache.calcite.rel</a></th>
<td class="colLast">
<div class="block">Defines relational expressions.</div>
</td>
</tr>
<tr class="altColor" id="i44">
<th class="colFirst" scope="row"><a href="org/apache/calcite/rel/convert/package-summary.html">org.apache.calcite.rel.convert</a></th>
<td class="colLast">
<div class="block">Defines relational expressions and rules for converting between calling
conventions.</div>
</td>
</tr>
<tr class="rowColor" id="i45">
<th class="colFirst" scope="row"><a href="org/apache/calcite/rel/core/package-summary.html">org.apache.calcite.rel.core</a></th>
<td class="colLast">
<div class="block">Defines core relational expressions.</div>
</td>
</tr>
<tr class="altColor" id="i46">
<th class="colFirst" scope="row"><a href="org/apache/calcite/rel/externalize/package-summary.html">org.apache.calcite.rel.externalize</a></th>
<td class="colLast">
<div class="block">Facilities to externalize <a href="org/apache/calcite/rel/RelNode.html" title="interface in org.apache.calcite.rel"><code>RelNode</code></a>s to and from
XML and JSON format.</div>
</td>
</tr>
<tr class="rowColor" id="i47">
<th class="colFirst" scope="row"><a href="org/apache/calcite/rel/logical/package-summary.html">org.apache.calcite.rel.logical</a></th>
<td class="colLast">
<div class="block">Defines logical relational expressions.</div>
</td>
</tr>
<tr class="altColor" id="i48">
<th class="colFirst" scope="row"><a href="org/apache/calcite/rel/metadata/package-summary.html">org.apache.calcite.rel.metadata</a></th>
<td class="colLast">
<div class="block">Defines metadata interfaces and utilities for relational
expressions.</div>
</td>
</tr>
<tr class="rowColor" id="i49">
<th class="colFirst" scope="row"><a href="org/apache/calcite/rel/mutable/package-summary.html">org.apache.calcite.rel.mutable</a></th>
<td class="colLast">
<div class="block">Defines mutable relational expressions.</div>
</td>
</tr>
<tr class="altColor" id="i50">
<th class="colFirst" scope="row"><a href="org/apache/calcite/rel/rel2sql/package-summary.html">org.apache.calcite.rel.rel2sql</a></th>
<td class="colLast">
<div class="block">Translates a relational expression to SQL parse tree.</div>
</td>
</tr>
<tr class="rowColor" id="i51">
<th class="colFirst" scope="row"><a href="org/apache/calcite/rel/rules/package-summary.html">org.apache.calcite.rel.rules</a></th>
<td class="colLast">
<div class="block">Provides a core set of planner rules.</div>
</td>
</tr>
<tr class="altColor" id="i52">
<th class="colFirst" scope="row"><a href="org/apache/calcite/rel/stream/package-summary.html">org.apache.calcite.rel.stream</a></th>
<td class="colLast">
<div class="block">Defines relational expressions for streaming.</div>
</td>
</tr>
<tr class="rowColor" id="i53">
<th class="colFirst" scope="row"><a href="org/apache/calcite/rel/type/package-summary.html">org.apache.calcite.rel.type</a></th>
<td class="colLast">
<div class="block">Defines a type system for relational expressions.</div>
</td>
</tr>
<tr class="altColor" id="i54">
<th class="colFirst" scope="row"><a href="org/apache/calcite/rex/package-summary.html">org.apache.calcite.rex</a></th>
<td class="colLast">
<div class="block">Provides a language for representing row-expressions.</div>
</td>
</tr>
<tr class="rowColor" id="i55">
<th class="colFirst" scope="row"><a href="org/apache/calcite/runtime/package-summary.html">org.apache.calcite.runtime</a></th>
<td class="colLast">
<div class="block">Utilities required at runtime.</div>
</td>
</tr>
<tr class="altColor" id="i56">
<th class="colFirst" scope="row"><a href="org/apache/calcite/schema/package-summary.html">org.apache.calcite.schema</a></th>
<td class="colLast">
<div class="block">Schema SPI.</div>
</td>
</tr>
<tr class="rowColor" id="i57">
<th class="colFirst" scope="row"><a href="org/apache/calcite/schema/impl/package-summary.html">org.apache.calcite.schema.impl</a></th>
<td class="colLast">
<div class="block">Utilities to help implement Calcite's SPIs.</div>
</td>
</tr>
<tr class="altColor" id="i58">
<th class="colFirst" scope="row"><a href="org/apache/calcite/server/package-summary.html">org.apache.calcite.server</a></th>
<td class="colLast">
<div class="block">Provides a server for hosting Calcite connections.</div>
</td>
</tr>
<tr class="rowColor" id="i59">
<th class="colFirst" scope="row"><a href="org/apache/calcite/sql/package-summary.html">org.apache.calcite.sql</a></th>
<td class="colLast">
<div class="block">Provides a SQL parser and object model.</div>
</td>
</tr>
<tr class="altColor" id="i60">
<th class="colFirst" scope="row"><a href="org/apache/calcite/sql/advise/package-summary.html">org.apache.calcite.sql.advise</a></th>
<td class="colLast">
<div class="block">Provides hints and corrections for editing SQL statements.</div>
</td>
</tr>
<tr class="rowColor" id="i61">
<th class="colFirst" scope="row"><a href="org/apache/calcite/sql/babel/package-summary.html">org.apache.calcite.sql.babel</a></th>
<td class="colLast">
<div class="block">Parse tree for SQL extensions used by the Babel parser.</div>
</td>
</tr>
<tr class="altColor" id="i62">
<th class="colFirst" scope="row"><a href="org/apache/calcite/sql/ddl/package-summary.html">org.apache.calcite.sql.ddl</a></th>
<td class="colLast">
<div class="block">Parse tree for SQL DDL statements.</div>
</td>
</tr>
<tr class="rowColor" id="i63">
<th class="colFirst" scope="row"><a href="org/apache/calcite/sql/dialect/package-summary.html">org.apache.calcite.sql.dialect</a></th>
<td class="colLast">
<div class="block">SQL unparsers for JDBC dialects.</div>
</td>
</tr>
<tr class="altColor" id="i64">
<th class="colFirst" scope="row"><a href="org/apache/calcite/sql/fun/package-summary.html">org.apache.calcite.sql.fun</a></th>
<td class="colLast">
<div class="block">Defines the set of standard SQL row-level functions and
operators.</div>
</td>
</tr>
<tr class="rowColor" id="i65">
<th class="colFirst" scope="row"><a href="org/apache/calcite/sql/parser/package-summary.html">org.apache.calcite.sql.parser</a></th>
<td class="colLast">
<div class="block">Provides a SQL parser.</div>
</td>
</tr>
<tr class="altColor" id="i66">
<th class="colFirst" scope="row"><a href="org/apache/calcite/sql/pretty/package-summary.html">org.apache.calcite.sql.pretty</a></th>
<td class="colLast">
<div class="block">Provides a pretty-printer for SQL statements.</div>
</td>
</tr>
<tr class="rowColor" id="i67">
<th class="colFirst" scope="row"><a href="org/apache/calcite/sql/type/package-summary.html">org.apache.calcite.sql.type</a></th>
<td class="colLast">
<div class="block">SQL type system.</div>
</td>
</tr>
<tr class="altColor" id="i68">
<th class="colFirst" scope="row"><a href="org/apache/calcite/sql/util/package-summary.html">org.apache.calcite.sql.util</a></th>
<td class="colLast">
<div class="block">Utility classes for the SQL object model, parsing, and validation.</div>
</td>
</tr>
<tr class="rowColor" id="i69">
<th class="colFirst" scope="row"><a href="org/apache/calcite/sql/validate/package-summary.html">org.apache.calcite.sql.validate</a></th>
<td class="colLast">
<div class="block">SQL validation.</div>
</td>
</tr>
<tr class="altColor" id="i70">
<th class="colFirst" scope="row"><a href="org/apache/calcite/sql/validate/implicit/package-summary.html">org.apache.calcite.sql.validate.implicit</a></th>
<td class="colLast">
<div class="block">Sql implicit type cast.</div>
</td>
</tr>
<tr class="rowColor" id="i71">
<th class="colFirst" scope="row"><a href="org/apache/calcite/sql2rel/package-summary.html">org.apache.calcite.sql2rel</a></th>
<td class="colLast">
<div class="block">Translates a SQL parse tree to relational expression.</div>
</td>
</tr>
<tr class="altColor" id="i72">
<th class="colFirst" scope="row"><a href="org/apache/calcite/statistic/package-summary.html">org.apache.calcite.statistic</a></th>
<td class="colLast">
<div class="block">Implementations of statistics providers.</div>
</td>
</tr>
<tr class="rowColor" id="i73">
<th class="colFirst" scope="row"><a href="org/apache/calcite/tools/package-summary.html">org.apache.calcite.tools</a></th>
<td class="colLast">
<div class="block">Provides utility classes.</div>
</td>
</tr>
<tr class="altColor" id="i74">
<th class="colFirst" scope="row"><a href="org/apache/calcite/util/package-summary.html">org.apache.calcite.util</a></th>
<td class="colLast">
<div class="block">Provides utility classes.</div>
</td>
</tr>
<tr class="rowColor" id="i75">
<th class="colFirst" scope="row"><a href="org/apache/calcite/util/graph/package-summary.html">org.apache.calcite.util.graph</a></th>
<td class="colLast">
<div class="block">Graph-theoretic algorithms and data structures.</div>
</td>
</tr>
<tr class="altColor" id="i76">
<th class="colFirst" scope="row"><a href="org/apache/calcite/util/javac/package-summary.html">org.apache.calcite.util.javac</a></th>
<td class="colLast">
<div class="block">Provides compilers for Java code.</div>
</td>
</tr>
<tr class="rowColor" id="i77">
<th class="colFirst" scope="row"><a href="org/apache/calcite/util/mapping/package-summary.html">org.apache.calcite.util.mapping</a></th>
<td class="colLast">
<div class="block">Support for algebraic maps.</div>
</td>
</tr>
<tr class="altColor" id="i78">
<th class="colFirst" scope="row"><a href="org/apache/calcite/util/trace/package-summary.html">org.apache.calcite.util.trace</a></th>
<td class="colLast">
<div class="block">Tracing services.</div>
</td>
</tr>
</tbody>
</table>
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