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# Exercise the case where a read-only serializable transaction has
# SXACT_FLAG_RO_SAFE set in a parallel query.
setup
{
CREATE TABLE foo AS SELECT generate_series(1, 10)::int a;
ALTER TABLE foo SET (parallel_workers = 2);
}
teardown
{
DROP TABLE foo;
}
session "s1"
setup { BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE; }
step "s1r" { SELECT * FROM foo; }
step "s1c" { COMMIT; }
session "s2"
setup {
BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE READ ONLY;
SET parallel_setup_cost = 0;
SET parallel_tuple_cost = 0;
}
step "s2r1" { SELECT * FROM foo; }
step "s2r2" { SELECT * FROM foo; }
step "s2c" { COMMIT; }
permutation "s1r" "s2r1" "s1c" "s2r2" "s2c"
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