66688f7199
Consolidate LeftOuter/Left and RightOuter/Right as they are by definition the same. Similar consolidate FullOuter/Outer/Full ... with Outer (as in the parser) not part of standard, but "full" missing. Allowing all three. This commit potentially breaks other programs as kJoinLeftOuter and kJoinRightOuter are eliminated
73 lines
1.3 KiB
C++
Executable File
73 lines
1.3 KiB
C++
Executable File
#ifndef __SQLPARSER__TABLEREF_H__
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#define __SQLPARSER__TABLEREF_H__
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#include "Expr.h"
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#include <stdio.h>
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#include <vector>
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namespace hsql {
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struct SelectStatement;
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struct JoinDefinition;
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struct TableRef;
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// Possible table reference types.
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enum TableRefType {
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kTableName,
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kTableSelect,
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kTableJoin,
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kTableCrossProduct
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};
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struct TableName {
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char* schema;
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char* name;
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};
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// Holds reference to tables. Can be either table names or a select statement.
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struct TableRef {
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TableRef(TableRefType type);
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virtual ~TableRef();
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TableRefType type;
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char* schema;
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char* name;
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char* alias;
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SelectStatement* select;
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std::vector<TableRef*>* list;
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JoinDefinition* join;
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// Returns true if a schema is set.
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bool hasSchema() const;
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// Returns the alias, if it is set. Otherwise the name.
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const char* getName() const;
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};
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// Possible types of joins.
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enum JoinType {
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kJoinInner,
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kJoinFull,
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kJoinLeft,
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kJoinRight,
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kJoinCross,
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kJoinNatural
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};
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// Definition of a join construct.
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struct JoinDefinition {
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JoinDefinition();
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virtual ~JoinDefinition();
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TableRef* left;
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TableRef* right;
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Expr* condition;
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JoinType type;
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};
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} // namespace hsql
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#endif
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