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 <h1 title="Package org.apache.calcite.piglet" class="title">Package org.apache.calcite.piglet</h1>
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 <div class="package-signature">package <span class="element-name">org.apache.calcite.piglet</span></div>
 <section class="package-description" id="package-description">
 <div class="block">Piglet, a Pig-like language.</div>
 </section>
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 <div class="table-header col-first">Package</div>
 <div class="table-header col-last">Description</div>
 <div class="col-first even-row-color"><a href="../package-summary.html">org.apache.calcite</a></div>
 <div class="col-last even-row-color">
 <div class="block">Main package for Calcite, the dynamic data management platform.</div>
 </div>
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 <div id="class-summary">
 <div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="class-summary-tab0" role="tab" aria-selected="true" aria-controls="class-summary.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('class-summary', 'class-summary', 2)" class="active-table-tab">All Classes and Interfaces</button><button id="class-summary-tab1" role="tab" aria-selected="false" aria-controls="class-summary.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('class-summary', 'class-summary-tab1', 2)" class="table-tab">Interfaces</button><button id="class-summary-tab2" role="tab" aria-selected="false" aria-controls="class-summary.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('class-summary', 'class-summary-tab2', 2)" class="table-tab">Classes</button><button id="class-summary-tab3" role="tab" aria-selected="false" aria-controls="class-summary.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('class-summary', 'class-summary-tab3', 2)" class="table-tab">Enums</button></div>
 <div id="class-summary.tabpanel" role="tabpanel">
 <div class="summary-table two-column-summary" aria-labelledby="class-summary-tab0">
 <div class="table-header col-first">Class</div>
 <div class="table-header col-last">Description</div>
 <div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.html" title="class in org.apache.calcite.piglet">Ast</a></div>
 <div class="col-last even-row-color class-summary class-summary-tab2">
 <div class="block">Abstract syntax tree.</div>
 </div>
 <div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.Assignment.html" title="class in org.apache.calcite.piglet">Ast.Assignment</a></div>
 <div class="col-last odd-row-color class-summary class-summary-tab2">
 <div class="block">Abstract base class for statements that assign to a named relation.</div>
 </div>
 <div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.Assignment1.html" title="class in org.apache.calcite.piglet">Ast.Assignment1</a></div>
 <div class="col-last even-row-color class-summary class-summary-tab2">
 <div class="block">Abstract base class for an assignment with one source relation.</div>
 </div>
 <div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.BagType.html" title="class in org.apache.calcite.piglet">Ast.BagType</a></div>
 <div class="col-last odd-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree for a bag type.</div>
 </div>
 <div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.Call.html" title="class in org.apache.calcite.piglet">Ast.Call</a></div>
 <div class="col-last even-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree node for a call to a function or operator.</div>
 </div>
 <div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.DescribeStmt.html" title="class in org.apache.calcite.piglet">Ast.DescribeStmt</a></div>
 <div class="col-last odd-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree node for DESCRIBE statement.</div>
 </div>
 <div class="col-first even-row-color class-summary class-summary-tab3"><a href="Ast.Direction.html" title="enum in org.apache.calcite.piglet">Ast.Direction</a></div>
 <div class="col-last even-row-color class-summary class-summary-tab3">
 <div class="block">Sort direction.</div>
 </div>
 <div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.DistinctStmt.html" title="class in org.apache.calcite.piglet">Ast.DistinctStmt</a></div>
 <div class="col-last odd-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree node for DISTINCT statement.</div>
 </div>
 <div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.DumpStmt.html" title="class in org.apache.calcite.piglet">Ast.DumpStmt</a></div>
 <div class="col-last even-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree node for DUMP statement.</div>
 </div>
 <div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.FieldSchema.html" title="class in org.apache.calcite.piglet">Ast.FieldSchema</a></div>
 <div class="col-last odd-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree for field schema.</div>
 </div>
 <div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.FilterStmt.html" title="class in org.apache.calcite.piglet">Ast.FilterStmt</a></div>
 <div class="col-last even-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree node for FILTER statement.</div>
 </div>
 <div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.ForeachNestedStmt.html" title="class in org.apache.calcite.piglet">Ast.ForeachNestedStmt</a></div>
 <div class="col-last odd-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree node for FOREACH statement (nested).</div>
 </div>
 <div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.ForeachStmt.html" title="class in org.apache.calcite.piglet">Ast.ForeachStmt</a></div>
 <div class="col-last even-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree node for FOREACH statement (non-nested).</div>
 </div>
 <div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.GroupStmt.html" title="class in org.apache.calcite.piglet">Ast.GroupStmt</a></div>
 <div class="col-last odd-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree node for GROUP statement.</div>
 </div>
 <div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.Identifier.html" title="class in org.apache.calcite.piglet">Ast.Identifier</a></div>
 <div class="col-last even-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree node for Identifier.</div>
 </div>
 <div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.LimitStmt.html" title="class in org.apache.calcite.piglet">Ast.LimitStmt</a></div>
 <div class="col-last odd-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree node for LIMIT statement.</div>
 </div>
 <div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.Literal.html" title="class in org.apache.calcite.piglet">Ast.Literal</a></div>
 <div class="col-last even-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree node for Literal.</div>
 </div>
 <div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.LoadStmt.html" title="class in org.apache.calcite.piglet">Ast.LoadStmt</a></div>
 <div class="col-last odd-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree node for LOAD statement.</div>
 </div>
 <div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.MapType.html" title="class in org.apache.calcite.piglet">Ast.MapType</a></div>
 <div class="col-last even-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree for a map type.</div>
 </div>
 <div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.Node.html" title="class in org.apache.calcite.piglet">Ast.Node</a></div>
 <div class="col-last odd-row-color class-summary class-summary-tab2">
 <div class="block">Abstract base class for parse tree node.</div>
 </div>
 <div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.NumericLiteral.html" title="class in org.apache.calcite.piglet">Ast.NumericLiteral</a></div>
 <div class="col-last even-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree node for NumericLiteral.</div>
 </div>
 <div class="col-first odd-row-color class-summary class-summary-tab3"><a href="Ast.Op.html" title="enum in org.apache.calcite.piglet">Ast.Op</a></div>
 <div class="col-last odd-row-color class-summary class-summary-tab3">
 <div class="block">Parse tree node type.</div>
 </div>
 <div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.OrderStmt.html" title="class in org.apache.calcite.piglet">Ast.OrderStmt</a></div>
 <div class="col-last even-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree node for ORDER statement.</div>
 </div>
 <div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.Program.html" title="class in org.apache.calcite.piglet">Ast.Program</a></div>
 <div class="col-last odd-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree node for a program.</div>
 </div>
 <div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.ScalarType.html" title="class in org.apache.calcite.piglet">Ast.ScalarType</a></div>
 <div class="col-last even-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree for scalar type such as <code>int</code>.</div>
 </div>
 <div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.Schema.html" title="class in org.apache.calcite.piglet">Ast.Schema</a></div>
 <div class="col-last odd-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree for schema.</div>
 </div>
 <div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.SpecialIdentifier.html" title="class in org.apache.calcite.piglet">Ast.SpecialIdentifier</a></div>
 <div class="col-last even-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree node for "*", a special kind of identifier.</div>
 </div>
 <div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.Stmt.html" title="class in org.apache.calcite.piglet">Ast.Stmt</a></div>
 <div class="col-last odd-row-color class-summary class-summary-tab2">
 <div class="block">Abstract base class for parse tree node representing a statement.</div>
 </div>
 <div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.TupleType.html" title="class in org.apache.calcite.piglet">Ast.TupleType</a></div>
 <div class="col-last even-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree for a tuple type.</div>
 </div>
 <div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.Type.html" title="class in org.apache.calcite.piglet">Ast.Type</a></div>
 <div class="col-last odd-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree for type.</div>
 </div>
 <div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.ValuesStmt.html" title="class in org.apache.calcite.piglet">Ast.ValuesStmt</a></div>
 <div class="col-last even-row-color class-summary class-summary-tab2">
 <div class="block">Parse tree node for VALUES statement.</div>
 </div>
 <div class="col-first odd-row-color class-summary class-summary-tab2"><a href="DynamicTupleRecordType.html" title="class in org.apache.calcite.piglet">DynamicTupleRecordType</a></div>
 <div class="col-last odd-row-color class-summary class-summary-tab2">
 <div class="block">Represents Pig Tuples with unknown fields.</div>
 </div>
 <div class="col-first even-row-color class-summary class-summary-tab2"><a href="Handler.html" title="class in org.apache.calcite.piglet">Handler</a></div>
 <div class="col-last even-row-color class-summary class-summary-tab2">
 <div class="block">Walks over a Piglet AST and calls the corresponding methods in a
  <a href="../tools/PigRelBuilder.html" title="class in org.apache.calcite.tools"><code>PigRelBuilder</code></a>.</div>
 </div>
 <div class="col-first odd-row-color class-summary class-summary-tab2"><a href="PigConverter.html" title="class in org.apache.calcite.piglet">PigConverter</a></div>
 <div class="col-last odd-row-color class-summary class-summary-tab2">
 <div class="block">Extension from PigServer to convert Pig scripts into logical relational
  algebra plans and SQL statements.</div>
 </div>
 <div class="col-first even-row-color class-summary class-summary-tab2"><a href="PigRelBuilder.html" title="class in org.apache.calcite.piglet">PigRelBuilder</a></div>
 <div class="col-last even-row-color class-summary class-summary-tab2">
 <div class="block">Extension to <a href="../tools/RelBuilder.html" title="class in org.apache.calcite.tools"><code>RelBuilder</code></a> for Pig logical operators.</div>
 </div>
 <div class="col-first odd-row-color class-summary class-summary-tab2"><a href="PigRelBuilder.PigRelTranslationContext.html" title="class in org.apache.calcite.piglet">PigRelBuilder.PigRelTranslationContext</a></div>
 <div class="col-last odd-row-color class-summary class-summary-tab2">
 <div class="block">Context constructed during Pig-to-<a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel"><code>RelNode</code></a> translation process.</div>
 </div>
 <div class="col-first even-row-color class-summary class-summary-tab2"><a href="PigRelSqlUdfs.html" title="class in org.apache.calcite.piglet">PigRelSqlUdfs</a></div>
 <div class="col-last even-row-color class-summary class-summary-tab2">
 <div class="block">User-defined functions (<a href="../sql/validate/SqlUserDefinedFunction.html" title="class in org.apache.calcite.sql.validate"><code>UDFs</code></a>)
  needed for Pig-to-<a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel"><code>RelNode</code></a> translation.</div>
 </div>
 <div class="col-first odd-row-color class-summary class-summary-tab2"><a href="PigRelToSqlConverter.html" title="class in org.apache.calcite.piglet">PigRelToSqlConverter</a></div>
 <div class="col-last odd-row-color class-summary class-summary-tab2">
 <div class="block">An extension of <a href="../rel/rel2sql/RelToSqlConverter.html" title="class in org.apache.calcite.rel.rel2sql"><code>RelToSqlConverter</code></a> to convert a relation algebra tree,
  translated from a Pig script, into a SQL statement.</div>
 </div>
 <div class="col-first even-row-color class-summary class-summary-tab2"><a href="PigTable.html" title="class in org.apache.calcite.piglet">PigTable</a></div>
 <div class="col-last even-row-color class-summary class-summary-tab2">
 <div class="block">A non-queriable table that contains only row type to represent a Pig Table.</div>
 </div>
 <div class="col-first odd-row-color class-summary class-summary-tab2"><a href="PigToSqlAggregateRule.html" title="class in org.apache.calcite.piglet">PigToSqlAggregateRule</a></div>
 <div class="col-last odd-row-color class-summary class-summary-tab2">
 <div class="block">Planner rule that converts Pig aggregate UDF calls to built-in SQL
  aggregates.</div>
 </div>
 <div class="col-first even-row-color class-summary class-summary-tab1"><a href="PigToSqlAggregateRule.Config.html" title="interface in org.apache.calcite.piglet">PigToSqlAggregateRule.Config</a></div>
 <div class="col-last even-row-color class-summary class-summary-tab1">
 <div class="block">Rule configuration.</div>
 </div>
 <div class="col-first odd-row-color class-summary class-summary-tab2"><a href="PigUdfs.html" title="class in org.apache.calcite.piglet">PigUdfs</a></div>
 <div class="col-last odd-row-color class-summary class-summary-tab2">
 <div class="block">Implementation methods.</div>
 </div>
 <div class="col-first even-row-color class-summary class-summary-tab2"><a href="PigUserDefinedFunction.html" title="class in org.apache.calcite.piglet">PigUserDefinedFunction</a></div>
 <div class="col-last even-row-color class-summary class-summary-tab2">
 <div class="block">Pig user-defined function.</div>
 </div>
 </div>
 </div>
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	<div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="class-summary-tab0" role="tab" aria-selected="true" aria-controls="class-summary.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('class-summary', 'class-summary', 2)" class="active-table-tab">All Classes and Interfaces</button><button id="class-summary-tab1" role="tab" aria-selected="false" aria-controls="class-summary.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('class-summary', 'class-summary-tab1', 2)" class="table-tab">Interfaces</button><button id="class-summary-tab2" role="tab" aria-selected="false" aria-controls="class-summary.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('class-summary', 'class-summary-tab2', 2)" class="table-tab">Classes</button><button id="class-summary-tab3" role="tab" aria-selected="false" aria-controls="class-summary.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('class-summary', 'class-summary-tab3', 2)" class="table-tab">Enums</button></div>
	<div id="class-summary.tabpanel" role="tabpanel">
	<div class="summary-table two-column-summary" aria-labelledby="class-summary-tab0">
	<div class="table-header col-first">Class</div>
	<div class="table-header col-last">Description</div>
	<div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.html" title="class in org.apache.calcite.piglet">Ast</a></div>
	<div class="col-last even-row-color class-summary class-summary-tab2">
	<div class="block">Abstract syntax tree.</div>
	</div>
	<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.Assignment.html" title="class in org.apache.calcite.piglet">Ast.Assignment</a></div>
	<div class="col-last odd-row-color class-summary class-summary-tab2">
	<div class="block">Abstract base class for statements that assign to a named relation.</div>
	</div>
	<div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.Assignment1.html" title="class in org.apache.calcite.piglet">Ast.Assignment1</a></div>
	<div class="col-last even-row-color class-summary class-summary-tab2">
	<div class="block">Abstract base class for an assignment with one source relation.</div>
	</div>
	<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.BagType.html" title="class in org.apache.calcite.piglet">Ast.BagType</a></div>
	<div class="col-last odd-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree for a bag type.</div>
	</div>
	<div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.Call.html" title="class in org.apache.calcite.piglet">Ast.Call</a></div>
	<div class="col-last even-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree node for a call to a function or operator.</div>
	</div>
	<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.DescribeStmt.html" title="class in org.apache.calcite.piglet">Ast.DescribeStmt</a></div>
	<div class="col-last odd-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree node for DESCRIBE statement.</div>
	</div>
	<div class="col-first even-row-color class-summary class-summary-tab3"><a href="Ast.Direction.html" title="enum in org.apache.calcite.piglet">Ast.Direction</a></div>
	<div class="col-last even-row-color class-summary class-summary-tab3">
	<div class="block">Sort direction.</div>
	</div>
	<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.DistinctStmt.html" title="class in org.apache.calcite.piglet">Ast.DistinctStmt</a></div>
	<div class="col-last odd-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree node for DISTINCT statement.</div>
	</div>
	<div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.DumpStmt.html" title="class in org.apache.calcite.piglet">Ast.DumpStmt</a></div>
	<div class="col-last even-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree node for DUMP statement.</div>
	</div>
	<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.FieldSchema.html" title="class in org.apache.calcite.piglet">Ast.FieldSchema</a></div>
	<div class="col-last odd-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree for field schema.</div>
	</div>
	<div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.FilterStmt.html" title="class in org.apache.calcite.piglet">Ast.FilterStmt</a></div>
	<div class="col-last even-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree node for FILTER statement.</div>
	</div>
	<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.ForeachNestedStmt.html" title="class in org.apache.calcite.piglet">Ast.ForeachNestedStmt</a></div>
	<div class="col-last odd-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree node for FOREACH statement (nested).</div>
	</div>
	<div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.ForeachStmt.html" title="class in org.apache.calcite.piglet">Ast.ForeachStmt</a></div>
	<div class="col-last even-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree node for FOREACH statement (non-nested).</div>
	</div>
	<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.GroupStmt.html" title="class in org.apache.calcite.piglet">Ast.GroupStmt</a></div>
	<div class="col-last odd-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree node for GROUP statement.</div>
	</div>
	<div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.Identifier.html" title="class in org.apache.calcite.piglet">Ast.Identifier</a></div>
	<div class="col-last even-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree node for Identifier.</div>
	</div>
	<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.LimitStmt.html" title="class in org.apache.calcite.piglet">Ast.LimitStmt</a></div>
	<div class="col-last odd-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree node for LIMIT statement.</div>
	</div>
	<div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.Literal.html" title="class in org.apache.calcite.piglet">Ast.Literal</a></div>
	<div class="col-last even-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree node for Literal.</div>
	</div>
	<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.LoadStmt.html" title="class in org.apache.calcite.piglet">Ast.LoadStmt</a></div>
	<div class="col-last odd-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree node for LOAD statement.</div>
	</div>
	<div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.MapType.html" title="class in org.apache.calcite.piglet">Ast.MapType</a></div>
	<div class="col-last even-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree for a map type.</div>
	</div>
	<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.Node.html" title="class in org.apache.calcite.piglet">Ast.Node</a></div>
	<div class="col-last odd-row-color class-summary class-summary-tab2">
	<div class="block">Abstract base class for parse tree node.</div>
	</div>
	<div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.NumericLiteral.html" title="class in org.apache.calcite.piglet">Ast.NumericLiteral</a></div>
	<div class="col-last even-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree node for NumericLiteral.</div>
	</div>
	<div class="col-first odd-row-color class-summary class-summary-tab3"><a href="Ast.Op.html" title="enum in org.apache.calcite.piglet">Ast.Op</a></div>
	<div class="col-last odd-row-color class-summary class-summary-tab3">
	<div class="block">Parse tree node type.</div>
	</div>
	<div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.OrderStmt.html" title="class in org.apache.calcite.piglet">Ast.OrderStmt</a></div>
	<div class="col-last even-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree node for ORDER statement.</div>
	</div>
	<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.Program.html" title="class in org.apache.calcite.piglet">Ast.Program</a></div>
	<div class="col-last odd-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree node for a program.</div>
	</div>
	<div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.ScalarType.html" title="class in org.apache.calcite.piglet">Ast.ScalarType</a></div>
	<div class="col-last even-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree for scalar type such as <code>int</code>.</div>
	</div>
	<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.Schema.html" title="class in org.apache.calcite.piglet">Ast.Schema</a></div>
	<div class="col-last odd-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree for schema.</div>
	</div>
	<div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.SpecialIdentifier.html" title="class in org.apache.calcite.piglet">Ast.SpecialIdentifier</a></div>
	<div class="col-last even-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree node for "*", a special kind of identifier.</div>
	</div>
	<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.Stmt.html" title="class in org.apache.calcite.piglet">Ast.Stmt</a></div>
	<div class="col-last odd-row-color class-summary class-summary-tab2">
	<div class="block">Abstract base class for parse tree node representing a statement.</div>
	</div>
	<div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.TupleType.html" title="class in org.apache.calcite.piglet">Ast.TupleType</a></div>
	<div class="col-last even-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree for a tuple type.</div>
	</div>
	<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="Ast.Type.html" title="class in org.apache.calcite.piglet">Ast.Type</a></div>
	<div class="col-last odd-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree for type.</div>
	</div>
	<div class="col-first even-row-color class-summary class-summary-tab2"><a href="Ast.ValuesStmt.html" title="class in org.apache.calcite.piglet">Ast.ValuesStmt</a></div>
	<div class="col-last even-row-color class-summary class-summary-tab2">
	<div class="block">Parse tree node for VALUES statement.</div>
	</div>
	<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="DynamicTupleRecordType.html" title="class in org.apache.calcite.piglet">DynamicTupleRecordType</a></div>
	<div class="col-last odd-row-color class-summary class-summary-tab2">
	<div class="block">Represents Pig Tuples with unknown fields.</div>
	</div>
	<div class="col-first even-row-color class-summary class-summary-tab2"><a href="Handler.html" title="class in org.apache.calcite.piglet">Handler</a></div>
	<div class="col-last even-row-color class-summary class-summary-tab2">
	<div class="block">Walks over a Piglet AST and calls the corresponding methods in a
	<a href="../tools/PigRelBuilder.html" title="class in org.apache.calcite.tools"><code>PigRelBuilder</code></a>.</div>
	</div>
	<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="PigConverter.html" title="class in org.apache.calcite.piglet">PigConverter</a></div>
	<div class="col-last odd-row-color class-summary class-summary-tab2">
	<div class="block">Extension from PigServer to convert Pig scripts into logical relational
	algebra plans and SQL statements.</div>
	</div>
	<div class="col-first even-row-color class-summary class-summary-tab2"><a href="PigRelBuilder.html" title="class in org.apache.calcite.piglet">PigRelBuilder</a></div>
	<div class="col-last even-row-color class-summary class-summary-tab2">
	<div class="block">Extension to <a href="../tools/RelBuilder.html" title="class in org.apache.calcite.tools"><code>RelBuilder</code></a> for Pig logical operators.</div>
	</div>
	<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="PigRelBuilder.PigRelTranslationContext.html" title="class in org.apache.calcite.piglet">PigRelBuilder.PigRelTranslationContext</a></div>
	<div class="col-last odd-row-color class-summary class-summary-tab2">
	<div class="block">Context constructed during Pig-to-<a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel"><code>RelNode</code></a> translation process.</div>
	</div>
	<div class="col-first even-row-color class-summary class-summary-tab2"><a href="PigRelSqlUdfs.html" title="class in org.apache.calcite.piglet">PigRelSqlUdfs</a></div>
	<div class="col-last even-row-color class-summary class-summary-tab2">
	<div class="block">User-defined functions (<a href="../sql/validate/SqlUserDefinedFunction.html" title="class in org.apache.calcite.sql.validate"><code>UDFs</code></a>)
	needed for Pig-to-<a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel"><code>RelNode</code></a> translation.</div>
	</div>
	<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="PigRelToSqlConverter.html" title="class in org.apache.calcite.piglet">PigRelToSqlConverter</a></div>
	<div class="col-last odd-row-color class-summary class-summary-tab2">
	<div class="block">An extension of <a href="../rel/rel2sql/RelToSqlConverter.html" title="class in org.apache.calcite.rel.rel2sql"><code>RelToSqlConverter</code></a> to convert a relation algebra tree,
	translated from a Pig script, into a SQL statement.</div>
	</div>
	<div class="col-first even-row-color class-summary class-summary-tab2"><a href="PigTable.html" title="class in org.apache.calcite.piglet">PigTable</a></div>
	<div class="col-last even-row-color class-summary class-summary-tab2">
	<div class="block">A non-queriable table that contains only row type to represent a Pig Table.</div>
	</div>
	<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="PigToSqlAggregateRule.html" title="class in org.apache.calcite.piglet">PigToSqlAggregateRule</a></div>
	<div class="col-last odd-row-color class-summary class-summary-tab2">
	<div class="block">Planner rule that converts Pig aggregate UDF calls to built-in SQL
	aggregates.</div>
	</div>
	<div class="col-first even-row-color class-summary class-summary-tab1"><a href="PigToSqlAggregateRule.Config.html" title="interface in org.apache.calcite.piglet">PigToSqlAggregateRule.Config</a></div>
	<div class="col-last even-row-color class-summary class-summary-tab1">
	<div class="block">Rule configuration.</div>
	</div>
	<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="PigUdfs.html" title="class in org.apache.calcite.piglet">PigUdfs</a></div>
	<div class="col-last odd-row-color class-summary class-summary-tab2">
	<div class="block">Implementation methods.</div>
	</div>
	<div class="col-first even-row-color class-summary class-summary-tab2"><a href="PigUserDefinedFunction.html" title="class in org.apache.calcite.piglet">PigUserDefinedFunction</a></div>
	<div class="col-last even-row-color class-summary class-summary-tab2">
	<div class="block">Pig user-defined function.</div>
	</div>
	</div>
	</div>
	</div>
	</li>
	</ul>
	</section>
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