diff options
Diffstat (limited to 'src/backend/optimizer/path/clausesel.c')
| -rw-r--r-- | src/backend/optimizer/path/clausesel.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/backend/optimizer/path/clausesel.c b/src/backend/optimizer/path/clausesel.c index abca03b805e..e8142bddf02 100644 --- a/src/backend/optimizer/path/clausesel.c +++ b/src/backend/optimizer/path/clausesel.c @@ -762,6 +762,21 @@ clause_selectivity(PlannerInfo *root, if (IsA(clause, DistinctExpr)) s1 = 1.0 - s1; } + else if (is_funcclause(clause)) + { + FuncExpr *funcclause = (FuncExpr *) clause; + + /* Try to get an estimate from the support function, if any */ + s1 = function_selectivity(root, + funcclause->funcid, + funcclause->args, + funcclause->inputcollid, + treat_as_join_clause(clause, rinfo, + varRelid, sjinfo), + varRelid, + jointype, + sjinfo); + } else if (IsA(clause, ScalarArrayOpExpr)) { /* Use node specific selectivity calculation function */ |