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35 lines
1.3 KiB
SQL
35 lines
1.3 KiB
SQL
-- Tags: no-fasttest
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DROP TABLE IF EXISTS t_subcolumns_sizes;
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SET allow_experimental_object_type = 1;
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CREATE TABLE t_subcolumns_sizes (id UInt64, arr Array(UInt64), n Nullable(String), d JSON)
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ENGINE = MergeTree ORDER BY id
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SETTINGS min_bytes_for_wide_part = 0;
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INSERT INTO t_subcolumns_sizes FORMAT JSONEachRow {"id": 1, "arr": [1, 2, 3], "n": null, "d": {"k1": "v1", "k2": [{"k3": 1, "k4": "v2"}, {"k3": 3}]}}
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INSERT INTO t_subcolumns_sizes FORMAT JSONEachRow {"id": 2, "arr": [0], "n": "foo", "d": {"k1": "v3", "k2": [{"k4": "v4"}, {"k3": "v5", "k5": 5}]}}
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OPTIMIZE TABLE t_subcolumns_sizes FINAL;
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SELECT
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column,
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subcolumns.names AS sname,
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subcolumns.types AS stype,
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subcolumns.bytes_on_disk > 0
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FROM system.parts_columns ARRAY JOIN subcolumns
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WHERE database = currentDatabase() AND table = 't_subcolumns_sizes' AND active
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ORDER BY column, sname, stype;
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SELECT
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any(column_bytes_on_disk) = sum(subcolumns.bytes_on_disk),
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any(column_data_compressed_bytes) = sum(subcolumns.data_compressed_bytes),
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any(column_data_uncompressed_bytes) = sum(subcolumns.data_uncompressed_bytes),
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any(column_marks_bytes) = sum(subcolumns.marks_bytes)
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FROM system.parts_columns ARRAY JOIN subcolumns
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WHERE database = currentDatabase() AND table = 't_subcolumns_sizes'
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AND active AND column = 'd';
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DROP TABLE IF EXISTS t_subcolumns_sizes;
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