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51 lines
2.6 KiB
SQL
51 lines
2.6 KiB
SQL
SELECT '*** In-memory aggregation.';
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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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-- 'any' overflow mode might select different values for two-level and
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-- single-level GROUP BY, so we set a big enough threshold here to ensure that
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-- the switch doesn't happen, we only use single-level GROUP BY and get a
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-- predictable result.
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SET group_by_two_level_threshold_bytes = 100000000;
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SET group_by_two_level_threshold = 1000000;
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SELECT '**** totals_mode = after_having_auto';
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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 number FROM system.numbers LIMIT 500000) GROUP BY k WITH TOTALS ORDER BY k LIMIT 10;
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SELECT '**** totals_mode = after_having_inclusive';
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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 number FROM system.numbers LIMIT 500000) GROUP BY k WITH TOTALS ORDER BY k LIMIT 10;
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SELECT '**** totals_mode = after_having_exclusive';
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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 number FROM system.numbers LIMIT 500000) GROUP BY k WITH TOTALS ORDER BY k LIMIT 10;
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SELECT '**** totals_mode = before_having';
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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 number FROM system.numbers LIMIT 500000) GROUP BY k WITH TOTALS ORDER BY k LIMIT 10;
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SELECT '*** External aggregation.';
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SET max_bytes_before_external_group_by=1000000;
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SET group_by_two_level_threshold = 100000;
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SELECT '**** totals_mode = after_having_auto';
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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 number FROM system.numbers LIMIT 500000) GROUP BY k WITH TOTALS ORDER BY k LIMIT 10;
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SELECT '**** totals_mode = after_having_inclusive';
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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 number FROM system.numbers LIMIT 500000) GROUP BY k WITH TOTALS ORDER BY k LIMIT 10;
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SELECT '**** totals_mode = after_having_exclusive';
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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 number FROM system.numbers LIMIT 500000) GROUP BY k WITH TOTALS ORDER BY k LIMIT 10;
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SELECT '**** totals_mode = before_having';
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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 number FROM system.numbers LIMIT 500000) GROUP BY k WITH TOTALS ORDER BY k LIMIT 10;
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