diff options
Diffstat (limited to 'src/backend/optimizer/path/indxpath.c')
| -rw-r--r-- | src/backend/optimizer/path/indxpath.c | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/src/backend/optimizer/path/indxpath.c b/src/backend/optimizer/path/indxpath.c index 2230b131047..c0fcc7d78df 100644 --- a/src/backend/optimizer/path/indxpath.c +++ b/src/backend/optimizer/path/indxpath.c @@ -3441,22 +3441,6 @@ relation_has_unique_index_for(PlannerInfo *root, RelOptInfo *rel, List *restrictlist, List *exprlist, List *oprlist) { - return relation_has_unique_index_ext(root, rel, restrictlist, - exprlist, oprlist, NULL); -} - -/* - * relation_has_unique_index_ext - * Same as relation_has_unique_index_for(), but supports extra_clauses - * parameter. If extra_clauses isn't NULL, return baserestrictinfo clauses - * which were used to derive uniqueness. - */ -bool -relation_has_unique_index_ext(PlannerInfo *root, RelOptInfo *rel, - List *restrictlist, - List *exprlist, List *oprlist, - List **extra_clauses) -{ ListCell *ic; Assert(list_length(exprlist) == list_length(oprlist)); @@ -3511,7 +3495,6 @@ relation_has_unique_index_ext(PlannerInfo *root, RelOptInfo *rel, { IndexOptInfo *ind = (IndexOptInfo *) lfirst(ic); int c; - List *exprs = NIL; /* * If the index is not unique, or not immediately enforced, or if it's @@ -3563,24 +3546,6 @@ relation_has_unique_index_ext(PlannerInfo *root, RelOptInfo *rel, if (match_index_to_operand(rexpr, c, ind)) { matched = true; /* column is unique */ - - if (bms_membership(rinfo->clause_relids) == BMS_SINGLETON) - { - MemoryContext oldMemCtx = - MemoryContextSwitchTo(root->planner_cxt); - - /* - * Add filter clause into a list allowing caller to - * know if uniqueness have made not only by join - * clauses. - */ - Assert(bms_is_empty(rinfo->left_relids) || - bms_is_empty(rinfo->right_relids)); - if (extra_clauses) - exprs = lappend(exprs, rinfo); - MemoryContextSwitchTo(oldMemCtx); - } - break; } } @@ -3623,11 +3588,7 @@ relation_has_unique_index_ext(PlannerInfo *root, RelOptInfo *rel, /* Matched all key columns of this index? */ if (c == ind->nkeycolumns) - { - if (extra_clauses) - *extra_clauses = exprs; return true; - } } return false; |