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Move exprType(), exprTypmod(), expression_tree_walker(), and related routines

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into nodes/nodeFuncs, so as to reduce wanton cross-subsystem #includes inside
the backend.  There's probably more that should be done along this line,
but this is a start anyway.
This commit is contained in:
Tom Lane
2008-08-25 22:42:34 +00:00
parent d320101b5b
commit e5536e77a5
55 changed files with 1865 additions and 1910 deletions
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28
src/include/optimizer/clauses.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/optimizer/clauses.h,v 1.93 2008/08/22 00:16:04 tgl Exp $
* $PostgreSQL: pgsql/src/include/optimizer/clauses.h,v 1.94 2008/08/25 22:42:34 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -49,7 +49,6 @@ extern List *make_ands_implicit(Expr *clause);
extern bool contain_agg_clause(Node *clause);
extern void count_agg_clauses(Node *clause, AggClauseCounts *counts);
extern bool expression_returns_set(Node *clause);
extern double expression_returns_set_rows(Node *clause);
extern bool contain_subplans(Node *clause);
@@ -80,29 +79,4 @@ extern Node *estimate_expression_value(PlannerInfo *root, Node *node);
extern Query *inline_set_returning_function(PlannerInfo *root, Node *node);
extern bool expression_tree_walker(Node *node, bool (*walker) (),
void *context);
extern Node *expression_tree_mutator(Node *node, Node *(*mutator) (),
void *context);
/* flags bits for query_tree_walker and query_tree_mutator */
#define QTW_IGNORE_RT_SUBQUERIES 0x01 /* subqueries in rtable */
#define QTW_IGNORE_JOINALIASES 0x02 /* JOIN alias var lists */
#define QTW_DONT_COPY_QUERY 0x04 /* do not copy top Query */
extern bool query_tree_walker(Query *query, bool (*walker) (),
void *context, int flags);
extern Query *query_tree_mutator(Query *query, Node *(*mutator) (),
void *context, int flags);
extern bool range_table_walker(List *rtable, bool (*walker) (),
void *context, int flags);
extern List *range_table_mutator(List *rtable, Node *(*mutator) (),
void *context, int flags);
extern bool query_or_expression_tree_walker(Node *node, bool (*walker) (),
void *context, int flags);
extern Node *query_or_expression_tree_mutator(Node *node, Node *(*mutator) (),
void *context, int flags);
#endif /* CLAUSES_H */