diff options
Diffstat (limited to 'src/backend/optimizer/util/tlist.c')
| -rw-r--r-- | src/backend/optimizer/util/tlist.c | 33 |
1 files changed, 22 insertions, 11 deletions
diff --git a/src/backend/optimizer/util/tlist.c b/src/backend/optimizer/util/tlist.c index e58fe7dc7f1..d2ac14cfa1b 100644 --- a/src/backend/optimizer/util/tlist.c +++ b/src/backend/optimizer/util/tlist.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/optimizer/util/tlist.c,v 1.75 2007/11/08 19:25:37 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/util/tlist.c,v 1.76 2007/11/08 21:49:47 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -131,26 +131,22 @@ add_to_flat_tlist(List *tlist, List *vars) return tlist; } + /* - * get_sortgroupclause_tle - * Find the targetlist entry matching the given SortClause - * (or GroupClause) by ressortgroupref, and return it. - * - * Because GroupClause is typedef'd as SortClause, either kind of - * node can be passed without casting. + * get_sortgroupref_tle + * Find the targetlist entry matching the given SortGroupRef index, + * and return it. */ TargetEntry * -get_sortgroupclause_tle(SortClause *sortClause, - List *targetList) +get_sortgroupref_tle(Index sortref, List *targetList) { - Index refnumber = sortClause->tleSortGroupRef; ListCell *l; foreach(l, targetList) { TargetEntry *tle = (TargetEntry *) lfirst(l); - if (tle->ressortgroupref == refnumber) + if (tle->ressortgroupref == sortref) return tle; } @@ -159,6 +155,21 @@ get_sortgroupclause_tle(SortClause *sortClause, } /* + * get_sortgroupclause_tle + * Find the targetlist entry matching the given SortClause + * (or GroupClause) by ressortgroupref, and return it. + * + * Because GroupClause is typedef'd as SortClause, either kind of + * node can be passed without casting. + */ +TargetEntry * +get_sortgroupclause_tle(SortClause *sortClause, + List *targetList) +{ + return get_sortgroupref_tle(sortClause->tleSortGroupRef, targetList); +} + +/* * get_sortgroupclause_expr * Find the targetlist entry matching the given SortClause * (or GroupClause) by ressortgroupref, and return its expression. |