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Update 00084_external_aggregation to avoid using mmap
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@ -2,6 +2,8 @@ SET max_bytes_before_external_group_by = 200000000;
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SET max_memory_usage = 1500000000;
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SET max_threads = 12;
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SET min_bytes_to_use_mmap_io = 0;
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SELECT URL, uniq(SearchPhrase) AS u FROM test.hits GROUP BY URL ORDER BY u DESC, URL LIMIT 10;
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SET max_memory_usage = 300000000;
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