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50 lines
1.8 KiB
SQL
50 lines
1.8 KiB
SQL
DROP TABLE IF EXISTS subcolumns;
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CREATE TABLE subcolumns
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(
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t Tuple
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(
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a Array(Nullable(UInt32)),
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u UInt32,
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s Nullable(String)
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),
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arr Array(Nullable(String)),
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arr2 Array(Array(Nullable(String))),
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lc LowCardinality(String),
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nested Nested(col1 String, col2 Nullable(UInt32))
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)
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ENGINE = MergeTree order by tuple() SETTINGS min_bytes_for_wide_part = '10M';
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INSERT INTO subcolumns VALUES (([1, NULL], 2, 'a'), ['foo', NULL, 'bar'], [['123'], ['456', '789']], 'qqqq', ['zzz', 'xxx'], [42, 43]);
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SELECT * FROM subcolumns;
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SELECT t.a, t.u, t.s, nested.col1, nested.col2, lc FROM subcolumns;
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SELECT t.a.size0, t.a.null, t.u, t.s, t.s.null FROM subcolumns;
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SELECT sumArray(arr.null), sum(arr.size0) FROM subcolumns;
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SELECT arr2, arr2.size0, arr2.size1, arr2.null FROM subcolumns;
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-- SELECT nested.col1, nested.col2, nested.col1.size0, nested.col2.size0, nested.col2.null FROM subcolumns;
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DROP TABLE IF EXISTS subcolumns;
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CREATE TABLE subcolumns
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(
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t Tuple
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(
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a Array(Nullable(UInt32)),
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u UInt32,
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s Nullable(String)
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),
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arr Array(Nullable(String)),
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arr2 Array(Array(Nullable(String))),
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lc LowCardinality(String),
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nested Nested(col1 String, col2 Nullable(UInt32))
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)
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ENGINE = MergeTree order by tuple() SETTINGS min_bytes_for_wide_part = 0;
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INSERT INTO subcolumns VALUES (([1, NULL], 2, 'a'), ['foo', NULL, 'bar'], [['123'], ['456', '789']], 'qqqq', ['zzz', 'xxx'], [42, 43]);
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SELECT * FROM subcolumns;
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SELECT t.a, t.u, t.s, nested.col1, nested.col2, lc FROM subcolumns;
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SELECT t.a.size0, t.a.null, t.u, t.s, t.s.null FROM subcolumns;
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SELECT sumArray(arr.null), sum(arr.size0) FROM subcolumns;
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SELECT arr2, arr2.size0, arr2.size1, arr2.null FROM subcolumns;
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-- SELECT nested.col1, nested.col2, nested.size0, nested.size0, nested.col2.null FROM subcolumns;
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