diff options
Diffstat (limited to 'src/backend/optimizer')
| -rw-r--r-- | src/backend/optimizer/util/clauses.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/backend/optimizer/util/clauses.c b/src/backend/optimizer/util/clauses.c index b9cefe88479..e1147c431e6 100644 --- a/src/backend/optimizer/util/clauses.c +++ b/src/backend/optimizer/util/clauses.c @@ -50,6 +50,8 @@ #include "utils/builtins.h" #include "utils/datum.h" #include "utils/fmgroids.h" +#include "utils/json.h" +#include "utils/jsonb.h" #include "utils/lsyscache.h" #include "utils/memutils.h" #include "utils/syscache.h" @@ -382,6 +384,27 @@ contain_mutable_functions_walker(Node *node, void *context) context)) return true; + if (IsA(node, JsonConstructorExpr)) + { + const JsonConstructorExpr *ctor = (JsonConstructorExpr *) node; + ListCell *lc; + bool is_jsonb = + ctor->returning->format->format_type == JS_FORMAT_JSONB; + + /* Check argument_type => json[b] conversions */ + foreach(lc, ctor->args) + { + Oid typid = exprType(lfirst(lc)); + + if (is_jsonb ? + !to_jsonb_is_immutable(typid) : + !to_json_is_immutable(typid)) + return true; + } + + /* Check all subnodes */ + } + if (IsA(node, SQLValueFunction)) { /* all variants of SQLValueFunction are stable */ |