Files
greptimedb/tests/cases/standalone/common/alter/repartition_error.sql
Weny Xu aadfcd7821 feat(repartition): implement validation logic for repartition table (#7538)
* feat(repartition): implement validation logic for repartition_table

Signed-off-by: WenyXu <wenymedia@gmail.com>

* refactor: minor refactor

Signed-off-by: WenyXu <wenymedia@gmail.com>

* test: update sqlness

Signed-off-by: WenyXu <wenymedia@gmail.com>

---------

Signed-off-by: WenyXu <wenymedia@gmail.com>
2026-01-08 12:18:39 +00:00

132 lines
3.5 KiB
SQL

-- Test split partition and merge partition error cases
-- Setup: Create a physical table with partitions
CREATE TABLE repartition_test_table(
device_id INT,
area STRING,
ts TIMESTAMP TIME INDEX,
PRIMARY KEY(device_id)
) PARTITION ON COLUMNS (device_id) (
device_id < 100,
device_id >= 100 AND device_id < 200,
device_id >= 200
);
-- Setup: Create a logical table (metric engine)
CREATE TABLE physical_metric_table(
ts TIMESTAMP TIME INDEX,
val DOUBLE
) ENGINE = metric WITH ("physical_metric_table" = "");
CREATE TABLE logical_metric_table(
ts TIMESTAMP TIME INDEX,
val DOUBLE,
device_id STRING PRIMARY KEY
) ENGINE = metric WITH ("on_physical_table" = "physical_metric_table");
-- Test 0: Logical table cannot be repartitioned
ALTER TABLE logical_metric_table REPARTITION (
device_id < 100
) INTO (
device_id < 50,
device_id >= 50 AND device_id < 100
);
ALTER TABLE logical_metric_table SPLIT PARTITION (
device_id < 100
) INTO (
device_id < 50,
device_id >= 50 AND device_id < 100
);
ALTER TABLE logical_metric_table MERGE PARTITION (
device_id < 100,
device_id >= 100 AND device_id < 200
);
-- Test 1: New partition rule contains non-partition column (ts is not a partition column)
ALTER TABLE repartition_test_table REPARTITION (
device_id < 100
) INTO (
device_id < 50,
device_id >= 50 AND device_id < 100 AND ts < 1000
);
ALTER TABLE repartition_test_table SPLIT PARTITION (
device_id < 100
) INTO (
device_id < 50,
device_id >= 50 AND device_id < 100 AND ts < 1000
);
-- Test 2: From partition expr does not exist in existing partition exprs
-- device_id < 50 is not in the existing partitions (which are < 100, >= 100 AND < 200, >= 200)
ALTER TABLE repartition_test_table REPARTITION (
device_id < 50
) INTO (
device_id < 25,
device_id >= 25 AND device_id < 50
);
ALTER TABLE repartition_test_table SPLIT PARTITION (
device_id < 50
) INTO (
device_id < 25,
device_id >= 25 AND device_id < 50
);
ALTER TABLE repartition_test_table MERGE PARTITION (
device_id < 50,
device_id >= 50 AND device_id < 75
);
-- Test 3: New partition rule is incomplete (cannot pass checker)
-- This creates a gap: device_id < 50 and device_id >= 100, missing [50, 100)
-- The existing partitions are: device_id < 100, device_id >= 100 AND device_id < 200, device_id >= 200
-- After removing device_id < 100 and adding device_id < 50 and device_id >= 100, we get:
-- device_id < 50, device_id >= 100 AND device_id < 200, device_id >= 200
-- This leaves a gap [50, 100)
ALTER TABLE repartition_test_table REPARTITION (
device_id < 100
) INTO (
device_id < 50,
device_id >= 100
);
ALTER TABLE repartition_test_table SPLIT PARTITION (
device_id < 100
) INTO (
device_id < 50,
device_id >= 100
);
-- Test 4: New partition rule has overlapping partitions
-- This creates overlapping ranges: device_id < 100 and device_id >= 50 AND device_id < 150
-- After removing device_id < 100, we have: device_id >= 100 AND device_id < 200, device_id >= 200
-- Adding the new ones: device_id < 100, device_id >= 50 AND device_id < 150
-- This overlaps: [0, 100) and [50, 150) overlap in [50, 100)
ALTER TABLE repartition_test_table REPARTITION (
device_id < 100
) INTO (
device_id < 100,
device_id >= 50 AND device_id < 150
);
ALTER TABLE repartition_test_table SPLIT PARTITION (
device_id < 100
) INTO (
device_id < 100,
device_id >= 50 AND device_id < 150
);
-- Cleanup
DROP TABLE repartition_test_table;
DROP TABLE logical_metric_table;
DROP TABLE physical_metric_table;