mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-04 21:42:39 +00:00
153 lines
8.0 KiB
Bash
Executable File
153 lines
8.0 KiB
Bash
Executable File
#!/usr/bin/env bash
|
||
|
||
CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
|
||
# shellcheck source=../shell_config.sh
|
||
. "$CURDIR"/../shell_config.sh
|
||
|
||
$CLICKHOUSE_CLIENT -q "select x + 1 from (select y + 2 as x from (select dummy + 3 as y)) settings query_plan_max_optimizations_to_apply = 1" 2>&1 |
|
||
grep -o "Too many optimizations applied to query plan"
|
||
|
||
echo "> sipHash should be calculated after filtration"
|
||
$CLICKHOUSE_CLIENT -q "explain actions = 1 select sum(x), sum(y) from (select sipHash64(number) as x, bitAnd(number, 1024) as y from numbers_mt(1000000000) limit 1000000000) where y = 0" | grep -o "FUNCTION sipHash64\|Filter column: equals"
|
||
echo "> sorting steps should know about limit"
|
||
$CLICKHOUSE_CLIENT -q "explain actions = 1 select number from (select number from numbers(500000000) order by -number) limit 10" | grep -o "MergingSorted\|MergeSorting\|PartialSorting\|Limit 10"
|
||
|
||
echo "-- filter push down --"
|
||
echo "> filter should be pushed down after aggregating"
|
||
$CLICKHOUSE_CLIENT -q "
|
||
explain select * from (select sum(x), y from (
|
||
select number as x, number + 1 as y from numbers(10)) group by y
|
||
) where y != 0
|
||
settings enable_optimize_predicate_expression=0" | grep -o "Aggregating\|Filter"
|
||
$CLICKHOUSE_CLIENT -q "
|
||
select s, y from (select sum(x) as s, y from (
|
||
select number as x, number + 1 as y from numbers(10)) group by y
|
||
) where y != 0 order by s, y
|
||
settings enable_optimize_predicate_expression=0"
|
||
|
||
echo "> filter should be pushed down after aggregating, column after aggregation is const"
|
||
$CLICKHOUSE_CLIENT -q "
|
||
explain actions = 1 select s, y, y != 0 from (select sum(x) as s, y from (
|
||
select number as x, number + 1 as y from numbers(10)) group by y
|
||
) where y != 0
|
||
settings enable_optimize_predicate_expression=0" | grep -o "Aggregating\|Filter\|COLUMN Const(UInt8) -> notEquals(y, 0)"
|
||
$CLICKHOUSE_CLIENT -q "
|
||
select s, y, y != 0 from (select sum(x) as s, y from (
|
||
select number as x, number + 1 as y from numbers(10)) group by y
|
||
) where y != 0 order by s, y, y != 0
|
||
settings enable_optimize_predicate_expression=0"
|
||
|
||
echo "> one condition of filter should be pushed down after aggregating, other condition is aliased"
|
||
$CLICKHOUSE_CLIENT -q "
|
||
explain actions = 1 select s, y from (
|
||
select sum(x) as s, y from (select number as x, number + 1 as y from numbers(10)) group by y
|
||
) where y != 0 and s != 4
|
||
settings enable_optimize_predicate_expression=0" |
|
||
grep -o "Aggregating\|Filter column\|Filter column: notEquals(y, 0)\|ALIAS notEquals(s, 4) :: 1 -> and(notEquals(y, 0), notEquals(s, 4))"
|
||
$CLICKHOUSE_CLIENT -q "
|
||
select s, y from (
|
||
select sum(x) as s, y from (select number as x, number + 1 as y from numbers(10)) group by y
|
||
) where y != 0 and s != 4 order by s, y
|
||
settings enable_optimize_predicate_expression=0"
|
||
|
||
echo "> one condition of filter should be pushed down after aggregating, other condition is casted"
|
||
$CLICKHOUSE_CLIENT -q "
|
||
explain actions = 1 select s, y from (
|
||
select sum(x) as s, y from (select number as x, number + 1 as y from numbers(10)) group by y
|
||
) where y != 0 and s - 4
|
||
settings enable_optimize_predicate_expression=0" |
|
||
grep -o "Aggregating\|Filter column\|Filter column: notEquals(y, 0)\|FUNCTION CAST(minus(s, 4) :: 1, UInt8 :: 3) -> and(notEquals(y, 0), minus(s, 4))"
|
||
$CLICKHOUSE_CLIENT -q "
|
||
select s, y from (
|
||
select sum(x) as s, y from (select number as x, number + 1 as y from numbers(10)) group by y
|
||
) where y != 0 and s - 4 order by s, y
|
||
settings enable_optimize_predicate_expression=0"
|
||
|
||
echo "> one condition of filter should be pushed down after aggregating, other two conditions are ANDed"
|
||
$CLICKHOUSE_CLIENT -q "
|
||
explain actions = 1 select s, y from (
|
||
select sum(x) as s, y from (select number as x, number + 1 as y from numbers(10)) group by y
|
||
) where y != 0 and s - 8 and s - 4
|
||
settings enable_optimize_predicate_expression=0" |
|
||
grep -o "Aggregating\|Filter column\|Filter column: notEquals(y, 0)\|FUNCTION and(minus(s, 8) :: 1, minus(s, 4) :: 2) -> and(notEquals(y, 0), minus(s, 8), minus(s, 4))"
|
||
$CLICKHOUSE_CLIENT -q "
|
||
select s, y from (
|
||
select sum(x) as s, y from (select number as x, number + 1 as y from numbers(10)) group by y
|
||
) where y != 0 and s - 8 and s - 4 order by s, y
|
||
settings enable_optimize_predicate_expression=0"
|
||
|
||
echo "> two conditions of filter should be pushed down after aggregating and ANDed, one condition is aliased"
|
||
$CLICKHOUSE_CLIENT -q "
|
||
explain actions = 1 select s, y from (
|
||
select sum(x) as s, y from (select number as x, number + 1 as y from numbers(10)) group by y
|
||
) where y != 0 and s != 8 and y - 4
|
||
settings enable_optimize_predicate_expression=0" |
|
||
grep -o "Aggregating\|Filter column\|Filter column: and(notEquals(y, 0), minus(y, 4))\|ALIAS notEquals(s, 8) :: 1 -> and(notEquals(y, 0), notEquals(s, 8), minus(y, 4))"
|
||
$CLICKHOUSE_CLIENT -q "
|
||
select s, y from (
|
||
select sum(x) as s, y from (select number as x, number + 1 as y from numbers(10)) group by y
|
||
) where y != 0 and s != 8 and y - 4 order by s, y
|
||
settings enable_optimize_predicate_expression=0"
|
||
|
||
echo "> filter is split, one part is filtered before ARRAY JOIN"
|
||
$CLICKHOUSE_CLIENT -q "
|
||
explain actions = 1 select x, y from (
|
||
select range(number) as x, number + 1 as y from numbers(3)
|
||
) array join x where y != 2 and x != 0" |
|
||
grep -o "Filter column: and(notEquals(y, 2), notEquals(x, 0))\|ARRAY JOIN x\|Filter column: notEquals(y, 2)"
|
||
$CLICKHOUSE_CLIENT -q "
|
||
select x, y from (
|
||
select range(number) as x, number + 1 as y from numbers(3)
|
||
) array join x where y != 2 and x != 0 order by x, y"
|
||
|
||
# echo "> filter is split, one part is filtered before Aggregating and Cube"
|
||
# $CLICKHOUSE_CLIENT -q "
|
||
# explain actions = 1 select * from (
|
||
# select sum(x) as s, x, y from (select number as x, number + 1 as y from numbers(10)) group by x, y with cube
|
||
# ) where y != 0 and s != 4
|
||
# settings enable_optimize_predicate_expression=0" |
|
||
# grep -o "Cube\|Aggregating\|Filter column: notEquals(y, 0)"
|
||
# $CLICKHOUSE_CLIENT -q "
|
||
# select s, x, y from (
|
||
# select sum(x) as s, x, y from (select number as x, number + 1 as y from numbers(10)) group by x, y with cube
|
||
# ) where y != 0 and s != 4 order by s, x, y
|
||
# settings enable_optimize_predicate_expression=0"
|
||
|
||
echo "> filter is pushed down before Distinct"
|
||
$CLICKHOUSE_CLIENT -q "
|
||
explain actions = 1 select x, y from (
|
||
select distinct x, y from (select number % 2 as x, number % 3 as y from numbers(10))
|
||
) where y != 2
|
||
settings enable_optimize_predicate_expression=0" |
|
||
grep -o "Distinct\|Filter column: notEquals(y, 2)"
|
||
$CLICKHOUSE_CLIENT -q "
|
||
select x, y from (
|
||
select distinct x, y from (select number % 2 as x, number % 3 as y from numbers(10))
|
||
) where y != 2 order by x, y
|
||
settings enable_optimize_predicate_expression=0"
|
||
|
||
echo "> filter is pushed down before sorting steps"
|
||
$CLICKHOUSE_CLIENT -q "
|
||
explain actions = 1 select x, y from (
|
||
select number % 2 as x, number % 3 as y from numbers(6) order by y desc
|
||
) where x != 0 and y != 0
|
||
settings enable_optimize_predicate_expression = 0" |
|
||
grep -o "MergingSorted\|MergeSorting\|PartialSorting\|Filter column: and(notEquals(x, 0), notEquals(y, 0))"
|
||
$CLICKHOUSE_CLIENT -q "
|
||
select x, y from (
|
||
select number % 2 as x, number % 3 as y from numbers(6) order by y desc
|
||
) where x != 0 and y != 0
|
||
settings enable_optimize_predicate_expression = 0"
|
||
|
||
echo "> filter is pushed down before TOTALS HAVING and aggregating"
|
||
$CLICKHOUSE_CLIENT -q "
|
||
explain actions = 1 select * from (
|
||
select y, sum(x) from (select number as x, number % 4 as y from numbers(10)) group by y with totals
|
||
) where y != 2
|
||
settings enable_optimize_predicate_expression=0" |
|
||
grep -o "TotalsHaving\|Aggregating\|Filter column: notEquals(y, 2)"
|
||
$CLICKHOUSE_CLIENT -q "
|
||
select * from (
|
||
select y, sum(x) from (select number as x, number % 4 as y from numbers(10)) group by y with totals
|
||
) where y != 2"
|