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32 lines
1.0 KiB
SQL
32 lines
1.0 KiB
SQL
DROP TABLE IF EXISTS data_compact;
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DROP TABLE IF EXISTS data_memory;
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DROP TABLE IF EXISTS data_wide;
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-- compact
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DROP TABLE IF EXISTS data_compact;
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CREATE TABLE data_compact
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(
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`root.array` Array(UInt8),
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)
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ENGINE = MergeTree()
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ORDER BY tuple()
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SETTINGS min_rows_for_wide_part=100, min_bytes_for_wide_part=1e9;
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INSERT INTO data_compact VALUES ([0]);
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ALTER TABLE data_compact ADD COLUMN root.nested_array Array(Array(UInt8));
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SELECT table, part_type FROM system.parts WHERE table = 'data_compact' AND database = currentDatabase();
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SELECT root.nested_array FROM data_compact;
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-- wide
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DROP TABLE IF EXISTS data_wide;
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CREATE TABLE data_wide
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(
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`root.array` Array(UInt8),
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)
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ENGINE = MergeTree()
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ORDER BY tuple()
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SETTINGS min_rows_for_wide_part=0, min_bytes_for_wide_part=0;
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INSERT INTO data_wide VALUES ([0]);
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ALTER TABLE data_wide ADD COLUMN root.nested_array Array(Array(UInt8));
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SELECT table, part_type FROM system.parts WHERE table = 'data_wide' AND database = currentDatabase();
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SELECT root.nested_array FROM data_wide;
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