From acb1542a1f8ebee9c9d6d9322c64c849b2f23e15 Mon Sep 17 00:00:00 2001 From: Peter Eisentraut Date: Fri, 12 Apr 2019 09:49:10 +0200 Subject: [PATCH] Unbreak index optimization for LIKE on bytea The same code is used to handle both text and bytea, but bytea is not collation-aware, so we shouldn't call get_collation_isdeterministic() in that case. --- src/backend/utils/adt/like_support.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/backend/utils/adt/like_support.c b/src/backend/utils/adt/like_support.c index a65e63736c..7528c80f7c 100644 --- a/src/backend/utils/adt/like_support.c +++ b/src/backend/utils/adt/like_support.c @@ -267,8 +267,10 @@ match_pattern_prefix(Node *leftop, * precise error messages.) (It should be possible to support at least * Pattern_Prefix_Exact, but no point as along as the actual * pattern-matching implementations don't support it.) + * + * expr_coll is not set for a non-collation-aware data type such as bytea. */ - if (!get_collation_isdeterministic(expr_coll)) + if (expr_coll && !get_collation_isdeterministic(expr_coll)) return NIL; /* -- 2.21.0