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authorTom Lane2017-01-25 14:27:09 +0000
committerTom Lane2017-01-25 14:27:09 +0000
commitd8d32d9a56a3cecfb14e8f47ebd50b780edffe60 (patch)
treef06a9fe35cc90008aabb19146fa29d344814a29a /src/backend
parent1e7c4bb0049732ece651d993d03bb6772e5d281a (diff)
Make UNKNOWN into an actual pseudo-type.
Previously, type "unknown" was labeled as a base type in pg_type, which perhaps had some sense to it because you were allowed to create tables with unknown-type columns. But now that we don't allow that, it makes more sense to label it a pseudo-type. This has the additional effects of forbidding use of "unknown" as a domain base type, cast source or target type, PL function argument or result type, or plpgsql local variable type; all of which seem like good holes to plug. Discussion: https://postgr.es/m/CAH2L28uwwbL9HUM-WR=hromW1Cvamkn7O-g8fPY2m=_7muJ0oA@mail.gmail.com
Diffstat (limited to 'src/backend')
-rw-r--r--src/backend/catalog/heap.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/src/backend/catalog/heap.c b/src/backend/catalog/heap.c
index d7a3513d295..7ce91158325 100644
--- a/src/backend/catalog/heap.c
+++ b/src/backend/catalog/heap.c
@@ -490,8 +490,7 @@ CheckAttributeType(const char *attname,
char att_typtype = get_typtype(atttypid);
Oid att_typelem;
- if (atttypid == UNKNOWNOID ||
- att_typtype == TYPTYPE_PSEUDO)
+ if (att_typtype == TYPTYPE_PSEUDO)
{
/*
* Refuse any attempt to create a pseudo-type column, except for a