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52 lines
991 B
SQL
52 lines
991 B
SQL
CREATE TABLE t_02967
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(
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`key` Date,
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`value` UInt16
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)
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ENGINE = MergeTree
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ORDER BY key
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SETTINGS
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index_granularity_bytes = 0 --8192 --, min_index_granularity_bytes = 2
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, index_granularity = 100
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, min_rows_for_wide_part = 0, min_bytes_for_wide_part = 0
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--
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-- , min_bytes_for_wide_part = 2
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AS SELECT
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number,
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repeat(toString(number), 5)
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FROM numbers(105.);
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-- Check with newly inserted data part. It's in-memory structured are filled at insert time.
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SELECT
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count(ignore(*))
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FROM t_02967
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PREWHERE CAST(ignore() + 1 as UInt8)
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GROUP BY
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ignore(65535, *),
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ignore(255, 256, *)
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SETTINGS
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--send_logs_level='test',
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max_threads=1;
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-- Reload part form disk to check that in-meory structures where properly serilaized-deserialized
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DETACH TABLE t_02967;
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ATTACH TABLE t_02967;
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SELECT
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count(ignore(*))
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FROM t_02967
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PREWHERE CAST(ignore() + 1 as UInt8)
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GROUP BY
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ignore(65535, *),
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ignore(255, 256, *)
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SETTINGS
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--send_logs_level='test',
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max_threads=1;
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DROP TABLE t_02967;
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