mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-18 13:42:02 +00:00
71 lines
1.7 KiB
SQL
71 lines
1.7 KiB
SQL
DROP TABLE IF EXISTS minmax_idx;
|
|
DROP TABLE IF EXISTS minmax_idx2;
|
|
|
|
SET allow_experimental_data_skipping_indices = 1;
|
|
|
|
CREATE TABLE minmax_idx
|
|
(
|
|
u64 UInt64,
|
|
i32 Int32
|
|
) ENGINE = MergeTree()
|
|
ORDER BY u64;
|
|
|
|
INSERT INTO minmax_idx VALUES (1, 2);
|
|
|
|
ALTER TABLE minmax_idx ADD INDEX idx1 u64 * i32 TYPE minmax GRANULARITY 10;
|
|
ALTER TABLE minmax_idx ADD INDEX idx2 u64 + i32 TYPE minmax GRANULARITY 10;
|
|
ALTER TABLE minmax_idx ADD INDEX idx3 (u64 - i32) TYPE minmax GRANULARITY 10 AFTER idx1;
|
|
|
|
SHOW CREATE TABLE minmax_idx;
|
|
|
|
SELECT * FROM minmax_idx WHERE u64 * i32 = 2;
|
|
|
|
INSERT INTO minmax_idx VALUES (1, 2);
|
|
INSERT INTO minmax_idx VALUES (1, 2);
|
|
INSERT INTO minmax_idx VALUES (1, 2);
|
|
INSERT INTO minmax_idx VALUES (1, 2);
|
|
INSERT INTO minmax_idx VALUES (1, 2);
|
|
|
|
SELECT * FROM minmax_idx WHERE u64 * i32 = 2;
|
|
|
|
ALTER TABLE minmax_idx DROP INDEX idx1;
|
|
|
|
SHOW CREATE TABLE minmax_idx;
|
|
|
|
SELECT * FROM minmax_idx WHERE u64 * i32 = 2;
|
|
|
|
ALTER TABLE minmax_idx DROP INDEX idx2;
|
|
ALTER TABLE minmax_idx DROP INDEX idx3;
|
|
|
|
SHOW CREATE TABLE minmax_idx;
|
|
|
|
ALTER TABLE minmax_idx ADD INDEX idx1 (u64 * i32) TYPE minmax GRANULARITY 10;
|
|
|
|
SHOW CREATE TABLE minmax_idx;
|
|
|
|
SELECT * FROM minmax_idx WHERE u64 * i32 = 2;
|
|
|
|
|
|
CREATE TABLE minmax_idx2
|
|
(
|
|
u64 UInt64,
|
|
i32 Int32,
|
|
INDEX idx1 (u64 + i32) TYPE minmax GRANULARITY 10,
|
|
INDEX idx2 u64 * i32 TYPE minmax GRANULARITY 10
|
|
) ENGINE = MergeTree()
|
|
ORDER BY u64;
|
|
|
|
INSERT INTO minmax_idx2 VALUES (1, 2);
|
|
INSERT INTO minmax_idx2 VALUES (1, 2);
|
|
|
|
SELECT * FROM minmax_idx2 WHERE u64 * i32 = 2;
|
|
|
|
ALTER TABLE minmax_idx2 DROP INDEX idx1, DROP INDEX idx2;
|
|
|
|
SHOW CREATE TABLE minmax_idx2;
|
|
|
|
SELECT * FROM minmax_idx2 WHERE u64 * i32 = 2;
|
|
|
|
DROP TABLE minmax_idx;
|
|
DROP TABLE minmax_idx2;
|