From 1d546eb3d27507ee51824d5a8c348b86187d1754 Mon Sep 17 00:00:00 2001 From: Tomas Vondra Date: Sat, 25 Nov 2017 18:44:14 +0100 Subject: [PATCH] MCV fix --- src/backend/statistics/mcv.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/src/backend/statistics/mcv.c b/src/backend/statistics/mcv.c index 0586054..af4d894 100644 --- a/src/backend/statistics/mcv.c +++ b/src/backend/statistics/mcv.c @@ -515,7 +515,13 @@ statext_mcv_serialize(MCVList *mcvlist, VacAttrStats **stats) for (dim = 0; dim < ndims; dim++) { int ndistinct; - StdAnalyzeData *tmp = (StdAnalyzeData *) stats[dim]->extra_data; + TypeCacheEntry *typentry; + + /* + * Lookup the LT operator (can't get it from stats extra_data, as + * we don't know how to interpret that - scalar vs. array etc.). + */ + typentry = lookup_type_cache(stats[dim]->attrtypid, TYPECACHE_LT_OPR); /* copy important info about the data type (length, by-value) */ info[dim].typlen = stats[dim]->attrtype->typlen; @@ -543,7 +549,7 @@ statext_mcv_serialize(MCVList *mcvlist, VacAttrStats **stats) ssup[dim].ssup_collation = DEFAULT_COLLATION_OID; ssup[dim].ssup_nulls_first = false; - PrepareSortSupportFromOrderingOp(tmp->ltopr, &ssup[dim]); + PrepareSortSupportFromOrderingOp(typentry->lt_opr, &ssup[dim]); qsort_arg(values[dim], counts[dim], sizeof(Datum), compare_scalars_simple, &ssup[dim]); -- 2.9.5