ClickHouse/tests/queries/0_stateless/00989_parallel_parts_loading.sql

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2019-08-11 20:04:14 +00:00
DROP TABLE IF EXISTS mt;
CREATE TABLE mt (x UInt64) ENGINE = MergeTree ORDER BY x SETTINGS max_part_loading_threads = 16, parts_to_delay_insert = 100000, parts_to_throw_insert = 100000;
SYSTEM STOP MERGES;
SET max_block_size = 1, min_insert_block_size_rows = 0, min_insert_block_size_bytes = 0;
INSERT INTO mt SELECT * FROM numbers(1000);
SET max_block_size = 65536;
SELECT count(), sum(x) FROM mt;
DETACH TABLE mt;
ATTACH TABLE mt;
SELECT count(), sum(x) FROM mt;
SYSTEM START MERGES;
DROP TABLE mt;