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-rw-r--r--contrib/pgstattuple/pgstattuple.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/contrib/pgstattuple/pgstattuple.c b/contrib/pgstattuple/pgstattuple.c
index c1122b496ad..68b07aaf267 100644
--- a/contrib/pgstattuple/pgstattuple.c
+++ b/contrib/pgstattuple/pgstattuple.c
@@ -40,7 +40,9 @@
PG_MODULE_MAGIC;
PG_FUNCTION_INFO_V1(pgstattuple);
+PG_FUNCTION_INFO_V1(pgstattuple_v1_5);
PG_FUNCTION_INFO_V1(pgstattuplebyid);
+PG_FUNCTION_INFO_V1(pgstattuplebyid_v1_5);
/*
* struct pgstattuple_type
@@ -152,6 +154,10 @@ build_pgstattuple_type(pgstattuple_type *stat, FunctionCallInfo fcinfo)
*
* C FUNCTION definition
* pgstattuple(text) returns pgstattuple_type
+ *
+ * The superuser() check here must be kept as the library might be upgraded
+ * without the extension being upgraded, meaning that in pre-1.5 installations
+ * these functions could be called by any user.
* ----------
*/
@@ -174,6 +180,28 @@ pgstattuple(PG_FUNCTION_ARGS)
PG_RETURN_DATUM(pgstat_relation(rel, fcinfo));
}
+/*
+ * As of pgstattuple version 1.5, we no longer need to check if the user
+ * is a superuser because we REVOKE EXECUTE on the function from PUBLIC.
+ * Users can then grant access to it based on their policies.
+ *
+ * Otherwise identical to pgstattuple (above).
+ */
+Datum
+pgstattuple_v1_5(PG_FUNCTION_ARGS)
+{
+ text *relname = PG_GETARG_TEXT_P(0);
+ RangeVar *relrv;
+ Relation rel;
+
+ /* open relation */
+ relrv = makeRangeVarFromNameList(textToQualifiedNameList(relname));
+ rel = relation_openrv(relrv, AccessShareLock);
+
+ PG_RETURN_DATUM(pgstat_relation(rel, fcinfo));
+}
+
+/* Must keep superuser() check, see above. */
Datum
pgstattuplebyid(PG_FUNCTION_ARGS)
{
@@ -191,6 +219,19 @@ pgstattuplebyid(PG_FUNCTION_ARGS)
PG_RETURN_DATUM(pgstat_relation(rel, fcinfo));
}
+/* Remove superuser() check for 1.5 version, see above */
+Datum
+pgstattuplebyid_v1_5(PG_FUNCTION_ARGS)
+{
+ Oid relid = PG_GETARG_OID(0);
+ Relation rel;
+
+ /* open relation */
+ rel = relation_open(relid, AccessShareLock);
+
+ PG_RETURN_DATUM(pgstat_relation(rel, fcinfo));
+}
+
/*
* pgstat_relation
*/