ClickHouse/tests/queries/0_stateless/02867_null_lc_in_bug.sql
2023-08-25 17:13:24 +05:00

18 lines
582 B
SQL

-- https://github.com/ClickHouse/ClickHouse/issues/50570
DROP TABLE IF EXISTS tnul SYNC;
DROP TABLE IF EXISTS tlc SYNC;
CREATE TABLE tnul (lc Nullable(String)) ENGINE = MergeTree ORDER BY tuple();
INSERT INTO tnul VALUES (NULL), ('qwe');
SELECT 'pure nullable result:';
SELECT lc FROM tnul WHERE notIn(lc, ('rty', 'uiop'));
DROP TABLE tnul SYNC;
CREATE TABLE tlc (lc LowCardinality(Nullable(String))) ENGINE = MergeTree ORDER BY tuple();
INSERT INTO tlc VALUES (NULL), ('qwe');
SELECT 'wrapping in LC:';
SELECT lc FROM tlc WHERE notIn(lc, ('rty', 'uiop'));
DROP TABLE tlc SYNC;