From 95928d744e1721f03c6b44ede25d42d13b15e14e Mon Sep 17 00:00:00 2001 From: Richard Guo Date: Mon, 31 Oct 2022 12:41:03 +0800 Subject: [PATCH v1] Skip statistics with mismatching stxdinherit flag --- src/backend/utils/adt/selfuncs.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/src/backend/utils/adt/selfuncs.c b/src/backend/utils/adt/selfuncs.c index 69e0fb98f5..d597b7e81f 100644 --- a/src/backend/utils/adt/selfuncs.c +++ b/src/backend/utils/adt/selfuncs.c @@ -3913,7 +3913,7 @@ estimate_multivariate_ndistinct(PlannerInfo *root, RelOptInfo *rel, Oid statOid = InvalidOid; MVNDistinct *stats; StatisticExtInfo *matched_info = NULL; - RangeTblEntry *rte; + RangeTblEntry *rte = planner_rt_fetch(rel->relid, root); /* bail out immediately if the table has no extended statistics */ if (!rel->statlist) @@ -3933,6 +3933,10 @@ estimate_multivariate_ndistinct(PlannerInfo *root, RelOptInfo *rel, if (info->kind != STATS_EXT_NDISTINCT) continue; + /* skip statistics with mismatching stxdinherit value */ + if (info->inherit != rte->inh) + continue; + /* * Determine how many expressions (and variables in non-matched * expressions) match. We'll then use these numbers to pick the @@ -4004,7 +4008,6 @@ estimate_multivariate_ndistinct(PlannerInfo *root, RelOptInfo *rel, Assert(nmatches_vars + nmatches_exprs > 1); - rte = planner_rt_fetch(rel->relid, root); stats = statext_ndistinct_load(statOid, rte->inh); /* @@ -5241,6 +5244,10 @@ examine_variable(PlannerInfo *root, Node *node, int varRelid, if (info->kind != STATS_EXT_EXPRESSIONS) continue; + /* skip stats with mismatching stxdinherit value */ + if (info->inherit != rte->inh) + continue; + pos = 0; foreach(expr_item, info->exprs) { -- 2.31.0