diff options
Diffstat (limited to 'src/backend/optimizer/util/clauses.c')
| -rw-r--r-- | src/backend/optimizer/util/clauses.c | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/src/backend/optimizer/util/clauses.c b/src/backend/optimizer/util/clauses.c index fa6817c9148..5894dd39c17 100644 --- a/src/backend/optimizer/util/clauses.c +++ b/src/backend/optimizer/util/clauses.c @@ -98,7 +98,6 @@ static bool contain_leaky_functions_walker(Node *node, void *context); static Relids find_nonnullable_rels_walker(Node *node, bool top_level); static List *find_nonnullable_vars_walker(Node *node, bool top_level); static bool is_strict_saop(ScalarArrayOpExpr *expr, bool falseOK); -static bool set_coercionform_dontcare_walker(Node *node, void *context); static Node *eval_const_expressions_mutator(Node *node, eval_const_expressions_context *context); static List *simplify_or_arguments(List *args, @@ -2115,47 +2114,6 @@ strip_implicit_coercions(Node *node) } /* - * set_coercionform_dontcare: set all CoercionForm fields to COERCE_DONTCARE - * - * This is used to make index expressions and index predicates more easily - * comparable to clauses of queries. CoercionForm is not semantically - * significant (for cases where it does matter, the significant info is - * coded into the coercion function arguments) so we can ignore it during - * comparisons. Thus, for example, an index on "foo::int4" can match an - * implicit coercion to int4. - * - * Caution: the passed expression tree is modified in-place. - */ -void -set_coercionform_dontcare(Node *node) -{ - (void) set_coercionform_dontcare_walker(node, NULL); -} - -static bool -set_coercionform_dontcare_walker(Node *node, void *context) -{ - if (node == NULL) - return false; - if (IsA(node, FuncExpr)) - ((FuncExpr *) node)->funcformat = COERCE_DONTCARE; - else if (IsA(node, RelabelType)) - ((RelabelType *) node)->relabelformat = COERCE_DONTCARE; - else if (IsA(node, CoerceViaIO)) - ((CoerceViaIO *) node)->coerceformat = COERCE_DONTCARE; - else if (IsA(node, ArrayCoerceExpr)) - ((ArrayCoerceExpr *) node)->coerceformat = COERCE_DONTCARE; - else if (IsA(node, ConvertRowtypeExpr)) - ((ConvertRowtypeExpr *) node)->convertformat = COERCE_DONTCARE; - else if (IsA(node, RowExpr)) - ((RowExpr *) node)->row_format = COERCE_DONTCARE; - else if (IsA(node, CoerceToDomain)) - ((CoerceToDomain *) node)->coercionformat = COERCE_DONTCARE; - return expression_tree_walker(node, set_coercionform_dontcare_walker, - context); -} - -/* * Helper for eval_const_expressions: check that datatype of an attribute * is still what it was when the expression was parsed. This is needed to * guard against improper simplification after ALTER COLUMN TYPE. (XXX we |