diff options
Diffstat (limited to 'src/backend/parser/parse_clause.c')
| -rw-r--r-- | src/backend/parser/parse_clause.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/src/backend/parser/parse_clause.c b/src/backend/parser/parse_clause.c index 9bafc24083b..3a02307bd99 100644 --- a/src/backend/parser/parse_clause.c +++ b/src/backend/parser/parse_clause.c @@ -3106,12 +3106,11 @@ resolve_unique_index_expr(ParseState *pstate, InferClause *infer, } /* - * transformExpr() should have already rejected subqueries, - * aggregates, and window functions, based on the EXPR_KIND_ for an - * index expression. Expressions returning sets won't have been - * rejected, but don't bother doing so here; there should be no - * available expression unique index to match any such expression - * against anyway. + * transformExpr() will reject subqueries, aggregates, window + * functions, and SRFs, based on being passed + * EXPR_KIND_INDEX_EXPRESSION. So we needn't worry about those + * further ... not that they would match any available index + * expression anyway. */ pInfer->expr = transformExpr(pstate, parse, EXPR_KIND_INDEX_EXPRESSION); |