# name: test/sql/attach/attach_transactionality.test
# description: Test transactionality of attach
# group: [attach]

statement ok
PRAGMA enable_verification

# straightforward attach and rollback
statement ok
BEGIN TRANSACTION

statement ok
ATTACH '__TEST_DIR__/attach_transaction.db'

statement ok
ROLLBACK

# attach and insert data, then rollback
# the data should never make it into the attached database
statement ok
BEGIN TRANSACTION

statement ok
ATTACH '__TEST_DIR__/attach_transaction.db'

statement ok
CREATE TABLE attach_transaction.integers(i INTEGER)

statement ok
INSERT INTO attach_transaction.integers VALUES (42)

statement ok
ROLLBACK

# now commit
statement ok
BEGIN TRANSACTION

statement ok
ATTACH '__TEST_DIR__/attach_transaction.db'

statement ok
CREATE TABLE attach_transaction.integers(i INTEGER)

statement ok
INSERT INTO attach_transaction.integers VALUES (42)

statement ok
COMMIT

# detach is not transactional
statement ok
BEGIN TRANSACTION

statement ok
DETACH attach_transaction

statement ok
ROLLBACK

statement error
DETACH attach_transaction
----
database not found

# what if we attach, push entries, then detach, and then rollback!?
statement ok
BEGIN TRANSACTION

statement ok
ATTACH '__TEST_DIR__/attach_transaction.db'

statement ok
INSERT INTO attach_transaction.integers VALUES (84)

statement ok
DETACH attach_transaction

statement ok
ROLLBACK

# now do the same but commit
statement ok
BEGIN TRANSACTION

statement ok
ATTACH '__TEST_DIR__/attach_transaction.db'

# verify the previous data was not written
query I
SELECT * FROM attach_transaction.integers
----
42

statement ok
INSERT INTO attach_transaction.integers VALUES (84)

statement ok
DETACH attach_transaction

statement ok
COMMIT

# now if we attach we should see [42, 84]
statement ok
ATTACH '__TEST_DIR__/attach_transaction.db'

query I
SELECT * FROM attach_transaction.integers ORDER BY 1
----
42
84