mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-15 10:52:30 +00:00
19 lines
900 B
SQL
19 lines
900 B
SQL
DROP TABLE IF EXISTS test_prewhere_default_column;
|
|
DROP TABLE IF EXISTS test_prewhere_column_type;
|
|
|
|
CREATE TABLE test_prewhere_default_column (APIKey UInt8, SessionType UInt8) ENGINE = MergeTree() PARTITION BY APIKey ORDER BY tuple();
|
|
INSERT INTO test_prewhere_default_column VALUES( 42, 42 );
|
|
ALTER TABLE test_prewhere_default_column ADD COLUMN OperatingSystem UInt64 DEFAULT SessionType+1;
|
|
|
|
SELECT OperatingSystem FROM test_prewhere_default_column PREWHERE SessionType = 42;
|
|
|
|
|
|
CREATE TABLE test_prewhere_column_type (`a` LowCardinality(String), `x` Nullable(Int32)) ENGINE = MergeTree ORDER BY tuple();
|
|
INSERT INTO test_prewhere_column_type VALUES ('', 2);
|
|
|
|
SELECT a, y FROM test_prewhere_column_type prewhere (x = 2) AS y;
|
|
SELECT a, toTypeName(x = 2), toTypeName(x) FROM test_prewhere_column_type where (x = 2) AS y;
|
|
|
|
DROP TABLE test_prewhere_default_column;
|
|
DROP TABLE test_prewhere_column_type;
|