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  • Committer: alvherre
  • Date: 2005-12-16 21:24:52 UTC
  • Revision ID: svn-v4:db760fc0-0f08-0410-9d63-cc6633f64896:trunk:1
Initial import of the REL8_0_3 sources from the Pgsql CVS repository.

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src/include/optimizer/var.h
 
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/*-------------------------------------------------------------------------
 
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 *
 
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 * var.h
 
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 *        prototypes for var.c.
 
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 *
 
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 *
 
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 * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
 
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 * Portions Copyright (c) 1994, Regents of the University of California
 
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 *
 
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 * $PostgreSQL: pgsql/src/include/optimizer/var.h,v 1.32 2004-12-31 22:03:36 pgsql Exp $
 
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 *
 
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 *-------------------------------------------------------------------------
 
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 */
 
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#ifndef VAR_H
 
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#define VAR_H
 
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#include "nodes/relation.h"
 
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extern Relids pull_varnos(Node *node);
 
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extern bool contain_var_reference(Node *node, int varno, int varattno,
 
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                                          int levelsup);
 
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extern bool contain_var_clause(Node *node);
 
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extern bool contain_vars_of_level(Node *node, int levelsup);
 
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extern bool contain_vars_above_level(Node *node, int levelsup);
 
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extern int      find_minimum_var_level(Node *node);
 
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extern List *pull_var_clause(Node *node, bool includeUpperVars);
 
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extern Node *flatten_join_alias_vars(Query *root, Node *node);
 
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#endif   /* VAR_H */