Package org.eigenbase.sql2rel

Translates a SQL parse tree to relational expression.

See:
Description

Interface Summary

DefaultValueFactory	DefaultValueFactory supplies default values for INSERT, UPDATE, and NEW.
RelStructuredTypeFlattener.SelfFlatteningRel
SqlNodeToRexConverter	Converts expressions from SqlNode to RexNode.
SqlRexContext	Contains the context necessary for a SqlRexConvertlet to convert a SqlNode expression into a RexNode.
SqlRexConvertlet	Thunk which converts a SqlNode expression into a RexNode expression.
SqlRexConvertletTable	Collection of SqlRexConvertlets.
SubqueryConverter	SubqueryConverter provides the interface for classes that convert subqueries into equivalent expressions.

Class Summary

ReflectiveConvertletTable	Implementation of SqlRexConvertletTable which uses reflection to call any method of the form public RexNode convertXxx(ConvertletContext, SqlNode) or public RexNode convertXxx(ConvertletContext, SqlOperator, SqlCall).
RelDecorrelator	RelDecorrelator replaces all correlated expressions(corExp) in a relational expression (RelNode) tree with non-correlated expressions that are produced from joining the RelNode that produces the corExp with the RelNode that references it.
RelStructuredTypeFlattener	RelStructuredTypeFlattener removes all structured types from a tree of relational expressions.
SqlNodeToRexConverterImpl	Standard implementation of SqlNodeToRexConverter.
SqlToRelConverter	Converts a SQL parse tree (consisting of SqlNode objects) into a relational algebra expression (consisting of RelNode objects).
SqlToRelConverter.DeferredLookup
SqlToRelConverter.LookupContext	Context to find a relational expression to a field offset.
SqlToRelConverter.SchemaCatalogReader	A SchemaCatalogReader looks up catalog information from a schema object.
StandardConvertletTable	Standard implementation of SqlRexConvertletTable.

Package org.eigenbase.sql2rel Description

Translates a SQL parse tree to relational expression.

Revision	$Id: //open/dev/farrago/src/org/eigenbase/sql2rel/package.html#6 $
Copyright	Copyright (C) 2005-2009 The Eigenbase Project Copyright (C) 2003-2009 SQLstream, Inc. Copyright (C) 2005-2009 LucidEra, Inc.
Author	Julian Hyde