ClickHouse/tests/queries/0_stateless/01200_mutations_memory_consumption.sql

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DROP TABLE IF EXISTS table_with_single_pk;
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CREATE TABLE table_with_single_pk
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(
key UInt8,
value String
)
ENGINE = MergeTree
ORDER BY key;
INSERT INTO table_with_single_pk SELECT number, toString(number % 10) FROM numbers(10000000);
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ALTER TABLE table_with_single_pk DELETE WHERE key % 77 = 0 SETTINGS mutations_sync = 1;
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SYSTEM FLUSH LOGS;
-- Memory usage for all mutations must be almost constant and less than
-- read_bytes.
SELECT
DISTINCT read_bytes >= peak_memory_usage
FROM
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system.part_log
WHERE event_type = 'MutatePart' AND table = 'table_with_single_pk' AND database = currentDatabase();
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DROP TABLE IF EXISTS table_with_single_pk;
DROP TABLE IF EXISTS table_with_multi_pk;
CREATE TABLE table_with_multi_pk
(
key1 UInt8,
key2 UInt32,
key3 DateTime64(6, 'UTC'),
value String
)
ENGINE = MergeTree
ORDER BY (key1, key2, key3);
INSERT INTO table_with_multi_pk SELECT number % 32, number, toDateTime('2019-10-01 00:00:00'), toString(number % 10) FROM numbers(10000000);
ALTER TABLE table_with_multi_pk DELETE WHERE key1 % 77 = 0 SETTINGS mutations_sync = 1;
SYSTEM FLUSH LOGS;
-- Memory usage for all mutations must be almost constant and less than
-- read_bytes.
SELECT
DISTINCT read_bytes >= peak_memory_usage
FROM
system.part_log
WHERE event_type = 'MutatePart' AND table = 'table_with_multi_pk' AND database = currentDatabase();
DROP TABLE IF EXISTS table_with_multi_pk;
DROP TABLE IF EXISTS table_with_function_pk;
CREATE TABLE table_with_function_pk
(
key1 UInt8,
key2 UInt32,
key3 DateTime64(6, 'UTC'),
value String
)
ENGINE = MergeTree
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ORDER BY (cast(value as UInt64), key2);
INSERT INTO table_with_function_pk SELECT number % 32, number, toDateTime('2019-10-01 00:00:00'), toString(number % 10) FROM numbers(10000000);
ALTER TABLE table_with_function_pk DELETE WHERE key1 % 77 = 0 SETTINGS mutations_sync = 1;
SYSTEM FLUSH LOGS;
-- Memory usage for all mutations must be almost constant and less than
-- read_bytes.
SELECT
DISTINCT read_bytes >= peak_memory_usage
FROM
system.part_log
WHERE event_type = 'MutatePart' AND table = 'table_with_function_pk' AND database = currentDatabase();
DROP TABLE IF EXISTS table_with_function_pk;
DROP TABLE IF EXISTS table_without_pk;
CREATE TABLE table_without_pk
(
key1 UInt8,
key2 UInt32,
key3 DateTime64(6, 'UTC'),
value String
)
ENGINE = MergeTree
ORDER BY tuple();
INSERT INTO table_without_pk SELECT number % 32, number, toDateTime('2019-10-01 00:00:00'), toString(number % 10) FROM numbers(10000000);
ALTER TABLE table_without_pk DELETE WHERE key1 % 77 = 0 SETTINGS mutations_sync = 1;
SYSTEM FLUSH LOGS;
-- Memory usage for all mutations must be almost constant and less than
-- read_bytes.
SELECT
DISTINCT read_bytes >= peak_memory_usage
FROM
system.part_log
WHERE event_type = 'MutatePart' AND table = 'table_without_pk' AND database = currentDatabase();
DROP TABLE IF EXISTS table_without_pk;