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| Current File : //usr/local/include/postgresql/server/optimizer/var.h |
/*------------------------------------------------------------------------- * * var.h * prototypes for optimizer/util/var.c. * * * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * $PostgreSQL: pgsql/src/include/optimizer/var.h,v 1.37 2008/01/01 19:45:58 momjian Exp $ * *------------------------------------------------------------------------- */ #ifndef VAR_H #define VAR_H #include "nodes/relation.h" extern Relids pull_varnos(Node *node); extern void pull_varattnos(Node *node, Bitmapset **varattnos); extern bool contain_var_reference(Node *node, int varno, int varattno, int levelsup); extern bool contain_var_clause(Node *node); extern bool contain_vars_of_level(Node *node, int levelsup); extern bool contain_vars_above_level(Node *node, int levelsup); extern int find_minimum_var_level(Node *node); extern List *pull_var_clause(Node *node, bool includeUpperVars); extern Node *flatten_join_alias_vars(PlannerInfo *root, Node *node); #endif /* VAR_H */