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Revise the header comment for match_clause_to_indexcol()

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Since d4378c0005e6, match_clause_to_indexcol() doesn't always return NULL
for an OR clause.  This commit reflects that in the function header comment.

Reported-by: Pavel Borisov <pashkin.elfe@gmail.com>
This commit is contained in:
Alexander Korotkov 2025-02-04 23:18:47 +02:00
parent f3e4aeb744
commit 23ef119f58
1 changed files with 3 additions and 2 deletions
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5
src/backend/optimizer/path/indxpath.c
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@ -2639,8 +2639,9 @@ match_clause_to_index(PlannerInfo *root,
* Returns an IndexClause if the clause can be used with this index key,
* or NULL if not.
*
* NOTE: returns NULL if clause is an OR or AND clause; it is the
* responsibility of higher-level routines to cope with those.
* NOTE: This routine always returns NULL if the clause is an AND clause.
* Higher-level routines deal with OR and AND clauses. OR clause can be
* matched as a whole by match_orclause_to_indexcol() though.
*/
static IndexClause *
match_clause_to_indexcol(PlannerInfo *root,