# name: test/sql/transactions/test_null_version.test
# description: Test NULL versions
# group: [transactions]

statement ok
SET immediate_transaction_mode=true

statement ok
PRAGMA enable_verification

statement ok con1
CREATE TABLE integers(i INTEGER, j INTEGER)

statement ok con1
INSERT INTO integers VALUES (NULL, 3)

query II con1
SELECT * FROM integers
----
NULL	3

# begin a transaction in con2
statement ok con2
BEGIN TRANSACTION

# update the row in con1
statement ok con1
UPDATE integers SET i=1,j=1

# con1 should see the value "1"
query II con1
SELECT * FROM integers
----
1	1

# con2 should see the value "NULL"
query II con2
SELECT * FROM integers
----
NULL	3

# after a rollback con2 should see the value "1" as well
statement ok con2
ROLLBACK

query II con1
SELECT * FROM integers
----
1	1