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authorThomas Munro <tmunro@postgresql.org>2021-02-22 23:01:20 +1300
committerThomas Munro <tmunro@postgresql.org>2021-02-22 23:01:20 +1300
commit0fb0a0503bfc125764c8dba4f515058145dc7f8b (patch)
tree98219612960d21cb75f0d962fab08fb917f42824 /src/backend/utils/adt/pg_locale.c
parentf05ed5a5cfa55878baa77a1e39d68cb09793b477 (diff)
downloadpostgresql-0fb0a0503bfc125764c8dba4f515058145dc7f8b.tar.gz
postgresql-0fb0a0503bfc125764c8dba4f515058145dc7f8b.zip
Hide internal error for pg_collation_actual_version(<bad OID>).
Instead of an unsightly internal "cache lookup failed" message, just return NULL for bad OIDs, as is the convention for other similar things. Reported-by: Justin Pryzby <pryzby@telsasoft.com> Reviewed-by: Michael Paquier <michael@paquier.xyz> Discussion: https://postgr.es/m/20210117215940.GE8560%40telsasoft.com
Diffstat (limited to 'src/backend/utils/adt/pg_locale.c')
-rw-r--r--src/backend/utils/adt/pg_locale.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/src/backend/utils/adt/pg_locale.c b/src/backend/utils/adt/pg_locale.c
index e9c1231f9ba..34b82b9335c 100644
--- a/src/backend/utils/adt/pg_locale.c
+++ b/src/backend/utils/adt/pg_locale.c
@@ -1726,10 +1726,11 @@ get_collation_actual_version(char collprovider, const char *collcollate)
/*
* Get provider-specific collation version string for a given collation OID.
* Return NULL if the provider doesn't support versions, or the collation is
- * unversioned (for example "C").
+ * unversioned (for example "C"). Unknown OIDs result in NULL if missing_ok is
+ * true.
*/
char *
-get_collation_version_for_oid(Oid oid)
+get_collation_version_for_oid(Oid oid, bool missing_ok)
{
HeapTuple tp;
char *version;
@@ -1751,7 +1752,11 @@ get_collation_version_for_oid(Oid oid)
tp = SearchSysCache1(COLLOID, ObjectIdGetDatum(oid));
if (!HeapTupleIsValid(tp))
+ {
+ if (missing_ok)
+ return NULL;
elog(ERROR, "cache lookup failed for collation %u", oid);
+ }
collform = (Form_pg_collation) GETSTRUCT(tp);
version = get_collation_actual_version(collform->collprovider,
NameStr(collform->collcollate));