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Create a standardized expression_tree_mutator support routine

to go along with expression_tree_walker. (_walker is not suitable forroutines that need to alter the tree structure significantly.) Other minorcleanups in clauses.c.

1 parentf0b651a commit6bc601bCopy full SHA for 6bc601b

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3 files changed

+281

-52

lines changed

src
- backend/optimizer
  - prep
    - preptlist.c
  - util
    - clauses.c
- include/optimizer
  - clauses.h

3 files changed

+281

-52

lines changed

`‎src/backend/optimizer/prep/preptlist.c`

Lines changed: 4 additions & 12 deletions

Original file line number	Diff line number	Diff line change
`@@ -7,7 +7,7 @@`
`7`	`7`	`*`
`8`	`8`	`*`
`9`	`9`	`* IDENTIFICATION`
`10`		`- * $Header: /cvsroot/pgsql/src/backend/optimizer/prep/preptlist.c,v 1.27 1999/07/17 20:17:16 momjian Exp $`
	`10`	`+ * $Header: /cvsroot/pgsql/src/backend/optimizer/prep/preptlist.c,v 1.28 1999/08/09 00:51:26 tgl Exp $`
`11`	`11`	`*`
`12`	`12`	`*-------------------------------------------------------------------------`
`13`	`13`	`*/`
`@@ -45,10 +45,9 @@ preprocess_targetlist(List *tlist,`
`45`	`45`	`Indexresult_relation,`
`46`	`46`	`List*range_table)`
`47`	`47`	`{`
`48`		`-List*expanded_tlist=NIL;`
`49`	`48`	`Oidrelid=InvalidOid;`
`50`		`-List*t_list=NIL;`
`51`		`-List*temp=NIL;`
	`49`	`+List*expanded_tlist;`
	`50`	`+List*t_list;`
`52`	`51`
`53`	`52`	`if (result_relation >=1&&command_type!=CMD_SELECT)`
`54`	`53`	`relid=getrelid(result_relation,range_table);`
`@@ -61,14 +60,7 @@ preprocess_targetlist(List *tlist,`
`61`	`60`	`expanded_tlist=expand_targetlist(tlist,relid,command_type,result_relation);`
`62`	`61`
`63`	`62`	`/* XXX should the fix-opids be this early?? */`
`64`		`-/* was mapCAR */`
`65`		`-foreach(temp,expanded_tlist)`
`66`		`-{`
`67`		`-TargetEntry*tle=lfirst(temp);`
`68`		`-`
`69`		`-if (tle->expr)`
`70`		`-fix_opid(tle->expr);`
`71`		`-}`
	`63`	`+fix_opids(expanded_tlist);`
`72`	`64`	`t_list=copyObject(expanded_tlist);`
`73`	`65`
`74`	`66`	`/* ------------------`

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Commit6bc601b

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`‎src/backend/optimizer/prep/preptlist.c`

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