In 9.1, if a table is created using an explicit pg_temp qualification,
the pg_class.relpersistence is marked 'p', not 't'.
postgres=# CREATE TABLE pg_temp.temptable (i int4);
CREATE TABLE
postgres=# select relpersistence from pg_class where relname = 'temptable';relpersistence
----------------p
(1 row)
BUt the table does go away if I exit the session:
postgres=# \q
edb-pg ~/git-pg1 $ psql
psql (9.0.1, server 9.2devel)
WARNING: psql version 9.0, server version 9.2. Some psql features might not work.
Type "help" for help.
postgres=# select relpersistence from pg_class where relname = 'temptable';relpersistence
----------------
(0 rows)
So in that sense, it does work as a temp table, but the relpersistence
is not 't'. So, is the "temp"ness no longer identified by
pg_class.relpersistence now?
In RelationBuildLocalRelation(), previously, namespace was used to
determine if the table should be marked temporary:
/* it is temporary if and only if it is in my temp-table namespace */rel->rd_istemp =
isTempOrToastNamespace(relnamespace);
But in Master branch, now if I look at RelationBuildLocalRelation(),
there is no such logic to mark relpersistence.
Was this intentional or is it a bug?
Regards
-Amit Khandekar
