Thread: pgsql: Use multi-variate MCV lists to estimate ScalarArrayOpExpr
Use multi-variate MCV lists to estimate ScalarArrayOpExpr Commit 8f321bd16c added support for estimating ScalarArrayOpExpr clauses (IN/ANY) clauses using functional dependencies. There's no good reason not to support estimation of these clauses using multi-variate MCV lists too, so this commits implements that. That makes the behavior consistent and MCV lists can estimate all variants (ANY/ALL, inequalities, ...). Author: Tomas Vondra Review: Dean Rasheed Discussion: https://www.postgresql.org/message-id/flat/13902317.Eha0YfKkKy%40pierred-pdoc Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/e83daa7e331e0718bb254ab685f2ed95df423554 Modified Files -------------- src/backend/statistics/extended_stats.c | 66 +++++++++++++- src/backend/statistics/mcv.c | 111 ++++++++++++++++++++++- src/include/statistics/extended_stats_internal.h | 4 +- src/test/regress/expected/stats_ext.out | 60 ++++++++++++ src/test/regress/sql/stats_ext.sql | 20 ++++ 5 files changed, 252 insertions(+), 9 deletions(-)