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82e7e7d9cb
Do not use subquery result, when value is unknown, for constant folding. v2: fix simple subqueries, fixes 00597_push_down_predicate. v3: - use identity over introducing yet another cast analog (as suggested by @akuzm) - simpler suitable_for_const_folding check v4: use identity(cast()) since only cast() can provide corrent type (for data types that does not have it's own type, i.e. DateTime) v5: do not optimize consts if only_analyze isset, regardless the block content
587 lines
7.3 KiB
Plaintext
587 lines
7.3 KiB
Plaintext
-------No need for predicate optimization, but still works-------
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1
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1
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1
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2000-01-01 1 test string 1 1
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-------Forbid push down-------
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SELECT count()
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FROM
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(
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SELECT
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[number] AS a,
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[number * 2] AS b
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FROM system.numbers
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LIMIT 1
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) AS t
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ARRAY JOIN
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a,
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b
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WHERE NOT ignore(a + b)
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1
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SELECT
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a,
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b
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FROM
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(
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SELECT 1 AS a
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)
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ANY LEFT JOIN
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(
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SELECT
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1 AS a,
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1 AS b
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) USING (a)
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WHERE b = 0
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SELECT
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a,
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b
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FROM
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(
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SELECT
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1 AS a,
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1 AS b
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)
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ANY RIGHT JOIN
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(
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SELECT 1 AS a
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) USING (a)
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WHERE b = 0
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SELECT
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a,
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b
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FROM
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(
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SELECT 1 AS a
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)
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ANY FULL OUTER JOIN
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(
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SELECT
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1 AS a,
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1 AS b
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) USING (a)
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WHERE b = 0
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SELECT
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a,
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b
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FROM
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(
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SELECT
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1 AS a,
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1 AS b
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)
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ANY FULL OUTER JOIN
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(
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SELECT 1 AS a
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) USING (a)
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WHERE b = 0
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-------Need push down-------
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SELECT toString(value) AS value
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FROM
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(
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SELECT 1 AS value
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)
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1
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SELECT id
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FROM
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(
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SELECT 1 AS id
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UNION ALL
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SELECT 2 AS `--predicate_optimizer_0`
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WHERE 0
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)
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WHERE id = 1
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1
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SELECT id
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FROM
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(
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SELECT arrayJoin([1, 2, 3]) AS id
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WHERE id = 1
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)
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WHERE id = 1
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1
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SELECT id
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FROM
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(
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SELECT arrayJoin([1, 2, 3]) AS id
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WHERE id = 1
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)
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WHERE id = 1
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1
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SELECT
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id,
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subquery
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FROM
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(
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SELECT
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1 AS id,
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identity(cast(1, \'UInt8\')) AS subquery
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)
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WHERE subquery = 1
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1 1
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SELECT
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a,
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b
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FROM
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(
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SELECT
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toUInt64(sum(id) AS b) AS a,
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b
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FROM test_00597
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HAVING a = 3
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)
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WHERE a = 3
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3 3
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SELECT
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date,
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id,
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name,
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value
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FROM
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(
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SELECT
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date,
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name,
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value,
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min(id) AS id
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FROM test_00597
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GROUP BY
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date,
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name,
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value
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HAVING id = 1
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)
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WHERE id = 1
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2000-01-01 1 test string 1 1
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SELECT
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a,
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b
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FROM
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(
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SELECT
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toUInt64(sum(id) AS b) AS a,
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b
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FROM test_00597 AS table_alias
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HAVING b = 3
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) AS outer_table_alias
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WHERE b = 3
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3 3
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SELECT
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date,
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id,
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name,
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value
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FROM
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(
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SELECT
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date,
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id,
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name,
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value
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FROM test_00597
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WHERE id = 1
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)
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WHERE id = 1
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2000-01-01 1 test string 1 1
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SELECT
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date,
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id,
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name,
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value
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FROM
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(
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SELECT
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date,
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id,
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name,
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value
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FROM
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(
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SELECT
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date,
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id,
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name,
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value
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FROM test_00597
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WHERE id = 1
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)
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WHERE id = 1
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)
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WHERE id = 1
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2000-01-01 1 test string 1 1
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SELECT
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date,
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id,
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name,
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value
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FROM
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(
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SELECT
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date,
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id,
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name,
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value
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FROM
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(
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SELECT
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date,
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id,
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name,
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value
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FROM test_00597
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WHERE id = 1
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) AS b
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WHERE id = 1
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)
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WHERE id = 1
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2000-01-01 1 test string 1 1
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SELECT
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date,
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id,
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name,
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value
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FROM
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(
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SELECT
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date,
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id,
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name,
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value
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FROM test_00597
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WHERE id = 1
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)
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WHERE id = 1
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2000-01-01 1 test string 1 1
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SELECT
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date,
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id,
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name,
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value
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FROM
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(
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SELECT
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date,
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id,
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name,
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value
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FROM
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(
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SELECT
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date,
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id,
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name,
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value
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FROM test_00597
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WHERE id = 1
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)
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WHERE id = 1
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)
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WHERE id = 1
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2000-01-01 1 test string 1 1
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SELECT
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date,
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id,
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name,
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value
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FROM
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(
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SELECT
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date,
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id,
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name,
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value
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FROM test_00597
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WHERE id = 1
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) AS b
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WHERE id = 1
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2000-01-01 1 test string 1 1
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SELECT
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date,
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id,
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name,
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value
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FROM
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(
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SELECT
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date,
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id,
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name,
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value
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FROM
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(
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SELECT
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date,
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id,
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name,
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value
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FROM test_00597
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WHERE id = 1
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) AS a
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WHERE id = 1
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) AS b
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WHERE id = 1
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2000-01-01 1 test string 1 1
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SELECT
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id,
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date,
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value
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FROM
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(
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SELECT
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id,
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date,
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min(value) AS value
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FROM test_00597
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WHERE id = 1
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GROUP BY
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id,
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date
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)
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WHERE id = 1
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1 2000-01-01 1
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SELECT
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date,
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id,
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name,
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value
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FROM
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(
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SELECT
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date,
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id,
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name,
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value
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FROM test_00597
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WHERE id = 1
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UNION ALL
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SELECT
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date,
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id,
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name,
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value
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FROM test_00597
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WHERE id = 1
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)
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WHERE id = 1
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2000-01-01 1 test string 1 1
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2000-01-01 1 test string 1 1
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SELECT
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date,
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id,
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name,
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value,
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date,
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name,
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value
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FROM
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(
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SELECT
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date,
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id,
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name,
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value
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FROM test_00597
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WHERE id = 1
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)
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ANY LEFT JOIN
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(
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SELECT id
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FROM test_00597
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) USING (id)
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WHERE id = 1
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2000-01-01 1 test string 1 1 2000-01-01 test string 1 1
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SELECT
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id,
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date,
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name,
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value
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FROM
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(
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SELECT toInt8(1) AS id
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)
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ANY LEFT JOIN
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(
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SELECT
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date,
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id,
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name,
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value
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FROM test_00597
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) AS test_00597 USING (id)
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WHERE value = 1
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1 2000-01-01 test string 1 1
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SELECT value
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FROM
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(
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SELECT toInt8(1) AS id
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)
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ANY LEFT JOIN test_00597 AS b USING (id)
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WHERE value = 1
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1
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SELECT
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date,
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id,
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name,
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value
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FROM
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(
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SELECT
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date,
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id,
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name,
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value,
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date,
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name,
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value
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FROM
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(
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SELECT
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date,
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id,
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name,
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value
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FROM test_00597
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WHERE id = 1
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)
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ANY LEFT JOIN
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(
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SELECT id
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FROM test_00597
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) USING (id)
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WHERE id = 1
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)
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WHERE id = 1
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2000-01-01 1 test string 1 1
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SELECT
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date,
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id,
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name,
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value,
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b.date,
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b.name,
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b.value
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FROM
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(
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SELECT
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date,
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id,
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name,
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value
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FROM test_00597
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)
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ANY LEFT JOIN
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(
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SELECT
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date,
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id,
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name,
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value
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FROM test_00597
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) AS b USING (id)
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WHERE b.id = 1
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2000-01-01 1 test string 1 1 2000-01-01 test string 1 1
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SELECT
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id,
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date,
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name,
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value
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FROM
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(
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SELECT
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toInt8(1) AS id,
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toDate(\'2000-01-01\') AS date
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FROM system.numbers
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LIMIT 1
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)
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ANY LEFT JOIN
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(
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SELECT
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date,
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id,
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name,
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value
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FROM test_00597
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) AS b USING (date, id)
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WHERE b.date = toDate(\'2000-01-01\')
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1 2000-01-01 test string 1 1
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SELECT
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date,
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id,
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name,
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value,
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`b.date`,
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`b.id`,
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`b.name`,
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`b.value`
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FROM
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(
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SELECT
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date,
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id,
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name,
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value,
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b.date,
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b.id,
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b.name,
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b.value
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FROM
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(
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SELECT
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date,
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id,
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name,
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value
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FROM test_00597
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WHERE id = 1
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) AS a
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ANY LEFT JOIN
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(
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SELECT
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date,
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id,
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name,
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value
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FROM test_00597
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) AS b ON id = b.id
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WHERE id = 1
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)
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WHERE id = 1
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2000-01-01 1 test string 1 1 2000-01-01 1 test string 1 1
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SELECT
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date,
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id,
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name,
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value,
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r.date,
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r.name,
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r.value
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FROM
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(
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SELECT
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date,
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id,
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name,
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value
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FROM test_00597
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)
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SEMI LEFT JOIN
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(
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SELECT
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date,
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id,
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name,
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value
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FROM
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(
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SELECT
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date,
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id,
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name,
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value
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FROM test_00597
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WHERE id = 1
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)
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WHERE id = 1
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) AS r USING (id)
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WHERE r.id = 1
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2000-01-01 1 test string 1 1 2000-01-01 test string 1 1
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