mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-22 15:42:02 +00:00
49 lines
2.0 KiB
SQL
49 lines
2.0 KiB
SQL
DROP TABLE IF EXISTS t_mutations_subcolumns;
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SET allow_experimental_object_type = 1;
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CREATE TABLE t_mutations_subcolumns (id UInt64, n String, obj Object(Nullable('json')))
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ENGINE = MergeTree ORDER BY id;
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INSERT INTO t_mutations_subcolumns VALUES (1, 'aaa', '{"k1": {"k2": "foo"}, "k3": 5}');
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INSERT INTO t_mutations_subcolumns VALUES (2, 'bbb', '{"k1": {"k2": "fee"}, "k3": 4}');
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INSERT INTO t_mutations_subcolumns VALUES (3, 'ccc', '{"k1": {"k2": "foo", "k4": "baz"}, "k3": 4}');
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INSERT INTO t_mutations_subcolumns VALUES (4, 'ddd', '{"k1": {"k2": "foo"}, "k3": 4}');
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INSERT INTO t_mutations_subcolumns VALUES (5, 'eee', '{"k1": {"k2": "foo"}, "k3": 4}');
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INSERT INTO t_mutations_subcolumns VALUES (6, 'fff', '{"k1": {"k2": "foo"}, "k3": 4}');
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OPTIMIZE TABLE t_mutations_subcolumns FINAL;
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SELECT count(), min(id) FROM t_mutations_subcolumns;
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SET mutations_sync = 2;
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ALTER TABLE t_mutations_subcolumns DELETE WHERE obj.k3 = 5;
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SELECT count(), min(id) FROM t_mutations_subcolumns;
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DELETE FROM t_mutations_subcolumns WHERE obj.k1.k2 = 'fee';
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SELECT count(), min(id) FROM t_mutations_subcolumns;
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ALTER TABLE t_mutations_subcolumns DELETE WHERE obj.k1 = ('foo', 'baz');
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SELECT count(), min(id) FROM t_mutations_subcolumns;
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ALTER TABLE t_mutations_subcolumns UPDATE n = 'ttt' WHERE obj.k1.k2 = 'foo';
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SELECT id, n FROM t_mutations_subcolumns;
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DROP TABLE IF EXISTS t_mutations_subcolumns;
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CREATE TABLE t_mutations_subcolumns (a UInt64, obj Object(Nullable('json')))
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ENGINE = MergeTree ORDER BY a PARTITION BY a;
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INSERT INTO t_mutations_subcolumns VALUES (1, '{"k1": 1}');
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INSERT INTO t_mutations_subcolumns VALUES (2, '{"k2": 1}');
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INSERT INTO t_mutations_subcolumns VALUES (3, '{"k3": 1}');
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ALTER TABLE t_mutations_subcolumns DELETE WHERE obj.k2 = 1;
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SELECT a, arrayFilter(x -> not isNull(x.2), tupleToNameValuePairs(obj)) FROM t_mutations_subcolumns ORDER BY a;
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ALTER TABLE t_mutations_subcolumns DELETE WHERE isNull(obj.k1);
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SELECT a, arrayFilter(x -> not isNull(x.2), tupleToNameValuePairs(obj)) FROM t_mutations_subcolumns ORDER BY a;
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DROP TABLE t_mutations_subcolumns;
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