mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-22 07:31:57 +00:00
17 lines
519 B
SQL
17 lines
519 B
SQL
DROP TABLE IF EXISTS test_data;
|
|
CREATE TABLE test_data (
|
|
col1 Nullable(String),
|
|
col2 Nullable(String),
|
|
col3 Nullable(String)
|
|
) ENGINE = Memory;
|
|
|
|
INSERT INTO test_data VALUES ('val1', NULL, 'val3');
|
|
|
|
SELECT '# output_format_csv_null_representation should initially be \\N';
|
|
SELECT * FROM test_data FORMAT CSV;
|
|
|
|
SELECT '# Changing output_format_csv_null_representation';
|
|
SET output_format_csv_null_representation = '∅';
|
|
SELECT * FROM test_data FORMAT CSV;
|
|
SET output_format_csv_null_representation = '\\N';
|