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Make inheritance planning logic a little simpler and clearer,

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hopefully even a little faster.
This commit is contained in:
Tom Lane
2000-06-20 04:22:21 +00:00
parent 996659f255
commit 38db5fab29
4 changed files with 145 additions and 116 deletions
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10
src/include/optimizer/prep.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: prep.h,v 1.22 2000/06/08 22:37:51 momjian Exp $
* $Id: prep.h,v 1.23 2000/06/20 04:22:13 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -33,8 +33,10 @@ extern List *preprocess_targetlist(List *tlist, int command_type,
* prototypes for prepunion.c
*/
extern List *find_all_inheritors(Oid parentrel);
extern int first_inherit_rt_entry(List *rangetable);
extern Append *plan_union_queries(Query *parse);
extern Append *plan_inherit_queries(Query *parse, List *tlist, Index rt_index);
extern bool find_inheritable_rt_entry(List *rangetable,
Index *rt_index, List **inheritors);
extern Plan *plan_inherit_queries(Query *root, List *tlist,
Index rt_index, List *inheritors);
extern Plan *plan_union_queries(Query *parse);
#endif /* PREP_H */