# Tests for locking conflicts with VACUUM and ANALYZE commands.

setup
{
	CREATE ROLE regress_vacuum_conflict;
	CREATE TABLE vacuum_tab (a int);
}

teardown
{
	DROP TABLE vacuum_tab;
	DROP ROLE regress_vacuum_conflict;
}

session s1
step s1_begin          { BEGIN; }
step s1_lock           { LOCK vacuum_tab IN SHARE UPDATE EXCLUSIVE MODE; }
step s1_commit         { COMMIT; }

session s2
step s2_grant          { ALTER TABLE vacuum_tab OWNER TO regress_vacuum_conflict; }
step s2_auth           { SET ROLE regress_vacuum_conflict; }
step s2_vacuum         { VACUUM vacuum_tab; }
step s2_analyze        { ANALYZE vacuum_tab; }
step s2_reset          { RESET ROLE; }

# The role doesn't have privileges to vacuum the table, so VACUUM should
# immediately skip the table without waiting for a lock.
permutation s1_begin s1_lock s2_auth s2_vacuum s1_commit s2_reset
permutation s1_begin s2_auth s2_vacuum s1_lock s1_commit s2_reset
permutation s1_begin s2_auth s1_lock s2_vacuum s1_commit s2_reset
permutation s2_auth s2_vacuum s1_begin s1_lock s1_commit s2_reset

# Same as previously for ANALYZE
permutation s1_begin s1_lock s2_auth s2_analyze s1_commit s2_reset
permutation s1_begin s2_auth s2_analyze s1_lock s1_commit s2_reset
permutation s1_begin s2_auth s1_lock s2_analyze s1_commit s2_reset
permutation s2_auth s2_analyze s1_begin s1_lock s1_commit s2_reset

# The role has privileges to vacuum the table, VACUUM will block if
# another session holds a lock on the table and succeed in all cases.
permutation s1_begin s2_grant s1_lock s2_auth s2_vacuum s1_commit s2_reset
permutation s1_begin s2_grant s2_auth s2_vacuum s1_lock s1_commit s2_reset
permutation s1_begin s2_grant s2_auth s1_lock s2_vacuum s1_commit s2_reset
permutation s2_grant s2_auth s2_vacuum s1_begin s1_lock s1_commit s2_reset

# Same as previously for ANALYZE
permutation s1_begin s2_grant s1_lock s2_auth s2_analyze s1_commit s2_reset
permutation s1_begin s2_grant s2_auth s2_analyze s1_lock s1_commit s2_reset
permutation s1_begin s2_grant s2_auth s1_lock s2_analyze s1_commit s2_reset
permutation s2_grant s2_auth s2_analyze s1_begin s1_lock s1_commit s2_reset