ClickHouse/tests/queries/0_stateless/01655_plan_optimizations.reference
2021-10-19 11:11:54 +03:00

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Too many optimizations applied to query plan
Too many optimizations applied to query plan
> sipHash should be calculated after filtration
FUNCTION sipHash64
Filter column: equals
> sorting steps should know about limit
Limit 10
Sorting
Sorting
Limit 10
-- filter push down --
> filter should be pushed down after aggregating
Aggregating
Filter
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> filter should be pushed down after aggregating, column after aggregation is const
COLUMN Const(UInt8) -> notEquals(y, 0)
Aggregating
Filter
Filter
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3 4 1
4 5 1
5 6 1
6 7 1
7 8 1
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9 10 1
> one condition of filter should be pushed down after aggregating, other condition is aliased
Filter column
ALIAS notEquals(s, 4) :: 1 -> and(notEquals(y, 0), notEquals(s, 4))
Aggregating
Filter column: notEquals(y, 0)
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> one condition of filter should be pushed down after aggregating, other condition is casted
Filter column
FUNCTION _CAST(minus(s, 4) :: 1, UInt8 :: 3) -> and(notEquals(y, 0), minus(s, 4))
Aggregating
Filter column: notEquals(y, 0)
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> one condition of filter should be pushed down after aggregating, other two conditions are ANDed
Filter column
FUNCTION and(minus(s, 8) :: 1, minus(s, 4) :: 2) -> and(notEquals(y, 0), minus(s, 8), minus(s, 4))
Aggregating
Filter column: notEquals(y, 0)
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> two conditions of filter should be pushed down after aggregating and ANDed, one condition is aliased
Filter column
ALIAS notEquals(s, 8) :: 1 -> and(notEquals(y, 0), notEquals(s, 8), minus(y, 4))
Aggregating
Filter column: and(notEquals(y, 0), minus(y, 4))
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> filter is split, one part is filtered before ARRAY JOIN
Filter column: and(notEquals(y, 2), notEquals(x, 0))
ARRAY JOIN x
Filter column: notEquals(y, 2)
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> filter is pushed down before Distinct
Distinct
Distinct
Filter column: notEquals(y, 2)
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1 1
> filter is pushed down before sorting steps
Sorting
Sorting
Filter column: and(notEquals(x, 0), notEquals(y, 0))
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1 1
> filter is pushed down before TOTALS HAVING and aggregating
TotalsHaving
Aggregating
Filter column: notEquals(y, 2)
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3 10
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> filter is pushed down before CreatingSets
CreatingSets
Filter
Filter
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> one condition of filter is pushed down before LEFT JOIN
Join
Filter column: notEquals(number, 1)
Join
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> one condition of filter is pushed down before INNER JOIN
Join
Filter column: notEquals(number, 1)
Join
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> filter is pushed down before UNION
Union
Filter
Filter
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