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# name: test/sql/update/test_string_update_null.test
# description: Test update of string columns with NULLs
# group: [update]
statement ok
SET default_null_order='nulls_first';
statement ok
SET immediate_transaction_mode=true
# create a table
statement ok con1
CREATE TABLE test (a VARCHAR);
statement ok con1
INSERT INTO test VALUES ('hello'), ('world')
statement ok con2
BEGIN TRANSACTION;
# update a string to NULL
statement ok con1
UPDATE test SET a=NULL where a='world';
query T con1
SELECT * FROM test ORDER BY a
----
NULL
hello
query T con2
SELECT * FROM test ORDER BY a
----
hello
world
statement ok con2
COMMIT;
query T con2
SELECT * FROM test ORDER BY a
----
NULL
hello
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