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67de39c2d9
Parallelize query processing right after reading FROM ...
25 lines
1.3 KiB
SQL
25 lines
1.3 KiB
SQL
-- Tags: shard, no-fasttest
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SET max_rows_to_group_by = 100000;
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SET max_block_size = 100001;
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SET group_by_overflow_mode = 'any';
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DROP TABLE IF EXISTS numbers500k;
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CREATE TABLE numbers500k (number UInt32) ENGINE = TinyLog;
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INSERT INTO numbers500k SELECT number FROM system.numbers LIMIT 500000;
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SET totals_mode = 'after_having_auto';
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SELECT intDiv(number, 2) AS k, count(), argMax(toString(number), number) FROM (SELECT * FROM remote('127.0.0.{2,3}', currentDatabase(), numbers500k) ORDER BY number) GROUP BY k WITH TOTALS ORDER BY k LIMIT 10;
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SET totals_mode = 'after_having_inclusive';
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SELECT intDiv(number, 2) AS k, count(), argMax(toString(number), number) FROM (SELECT * FROM remote('127.0.0.{2,3}', currentDatabase(), numbers500k) ORDER BY number) GROUP BY k WITH TOTALS ORDER BY k LIMIT 10;
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SET totals_mode = 'after_having_exclusive';
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SELECT intDiv(number, 2) AS k, count(), argMax(toString(number), number) FROM (SELECT * FROM remote('127.0.0.{2,3}', currentDatabase(), numbers500k) ORDER BY number) GROUP BY k WITH TOTALS ORDER BY k LIMIT 10;
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SET totals_mode = 'before_having';
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SELECT intDiv(number, 2) AS k, count(), argMax(toString(number), number) FROM (SELECT * FROM remote('127.0.0.{2,3}', currentDatabase(), numbers500k) ORDER BY number) GROUP BY k WITH TOTALS ORDER BY k LIMIT 10;
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DROP TABLE numbers500k;
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