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authorTom Lane <tgl@sss.pgh.pa.us>2022-05-13 11:40:01 -0400
committerTom Lane <tgl@sss.pgh.pa.us>2022-05-13 11:40:08 -0400
commit3ab9a63cb638a1fd99475668e2da9c237495aeda (patch)
treefac93993a8a296e02fd12a4b222887f0d6b7d38e /src/backend/parser/parse_expr.c
parent2454cb07eed1ec7e68b9953b03d473d3c334ba05 (diff)
downloadpostgresql-3ab9a63cb638a1fd99475668e2da9c237495aeda.tar.gz
postgresql-3ab9a63cb638a1fd99475668e2da9c237495aeda.zip
Rename JsonIsPredicate.value_type, fix JSON backend/nodes/ infrastructure.
I started out with the intention to rename value_type to item_type to avoid a collision with a typedef name that appears on some platforms. Along the way, I noticed that the adjacent field "format" was not being correctly handled by the backend/nodes/ infrastructure functions: copyfuncs.c erroneously treated it as a scalar, while equalfuncs, outfuncs, and readfuncs omitted handling it at all. This looks like it might be cosmetic at the moment because the field is always NULL after parse analysis; but that's likely a bug in itself, and the code's certainly not very future-proof. Let's fix it while we can still do so without forcing an initdb on beta testers. Further study found a few other inconsistencies in the backend/nodes/ infrastructure for the recently-added JSON node types, so fix those too. catversion bumped because of potential change in stored rules. Discussion: https://postgr.es/m/526703.1652385613@sss.pgh.pa.us
Diffstat (limited to 'src/backend/parser/parse_expr.c')
-rw-r--r--src/backend/parser/parse_expr.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/backend/parser/parse_expr.c b/src/backend/parser/parse_expr.c
index 17709c3416b..0dc2fc472e5 100644
--- a/src/backend/parser/parse_expr.c
+++ b/src/backend/parser/parse_expr.c
@@ -4018,8 +4018,7 @@ transformJsonParseArg(ParseState *pstate, Node *jsexpr, JsonFormat *format,
}
/*
- * Transform IS JSON predicate into
- * json[b]_is_valid(json, value_type [, check_key_uniqueness]) call.
+ * Transform IS JSON predicate.
*/
static Node *
transformJsonIsPredicate(ParseState *pstate, JsonIsPredicate *pred)
@@ -4035,7 +4034,8 @@ transformJsonIsPredicate(ParseState *pstate, JsonIsPredicate *pred)
errmsg("cannot use type %s in IS JSON predicate",
format_type_be(exprtype))));
- return makeJsonIsPredicate(expr, NULL, pred->value_type,
+ /* This intentionally(?) drops the format clause. */
+ return makeJsonIsPredicate(expr, NULL, pred->item_type,
pred->unique_keys, pred->location);
}