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8 lines
491 B
SQL
8 lines
491 B
SQL
SET max_insert_threads = 1, max_threads = 100, min_insert_block_size_rows = 1048576, max_block_size = 65536;
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CREATE TEMPORARY TABLE t (x UInt64);
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-- For trivial INSERT SELECT, max_threads is lowered to max_insert_threads and max_block_size is changed to min_insert_block_size_rows.
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INSERT INTO t SELECT * FROM numbers_mt(1000000);
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SET max_threads = 1;
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-- If data was inserted by more threads, we will probably see data out of order.
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SELECT DISTINCT blockSize(), runningDifference(x) FROM t;
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