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01786_explain_merge_tree
This commit is contained in:
Nikolai Kochetov
parent
82f0898cd9
commit
0f82706fb6
@ -104,3 +104,97 @@
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Condition: or((x in 2-element set), (plus(plus(x, y), 1) in (-Inf, 2]))
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Parts: 1/1
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Granules: 1/1
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ReadFromMergeTree (default.test_index)
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Indexes:
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MinMax
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Keys:
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y
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Condition: (y in [1, +Inf))
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Parts: 4/5
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Granules: 11/12
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Partition
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Keys:
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y
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bitAnd(z, 3)
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Condition: and((y in [1, +Inf)), (bitAnd(z, 3) not in [1, 1]))
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Parts: 3/4
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Granules: 10/11
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PrimaryKey
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Keys:
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x
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y
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Condition: and((x in [11, +Inf)), (y in [1, +Inf)))
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Parts: 2/3
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Granules: 6/10
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Skip
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Name: t_minmax
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Description: minmax GRANULARITY 2
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Parts: 1/2
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Granules: 3/6
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-----------------
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"Node Type": "ReadFromMergeTree",
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"Description": "default.test_index",
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"Indexes": [
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{
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"Type": "MinMax",
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"Keys": ["y"],
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"Condition": "(y in [1, +Inf))",
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"Initial Parts": 5,
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"Selected Parts": 4,
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"Initial Granules": 12,
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"Selected Granules": 11
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},
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{
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"Type": "Partition",
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"Keys": ["y", "bitAnd(z, 3)"],
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"Condition": "and((y in [1, +Inf)), (bitAnd(z, 3) not in [1, 1]))",
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"Initial Parts": 4,
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"Selected Parts": 3,
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"Initial Granules": 11,
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"Selected Granules": 10
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},
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{
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"Type": "PrimaryKey",
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"Keys": ["x", "y"],
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"Condition": "and((x in [11, +Inf)), (y in [1, +Inf)))",
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"Initial Parts": 3,
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"Selected Parts": 2,
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"Initial Granules": 10,
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"Selected Granules": 6
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},
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{
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"Type": "Skip",
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"Name": "t_minmax",
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"Description": "minmax GRANULARITY 2",
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"Initial Parts": 2,
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"Selected Parts": 1,
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"Initial Granules": 6,
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"Selected Granules": 3
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}
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]
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}
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]
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}
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]
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}
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}
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]
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-----------------
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ReadFromMergeTree (default.test_index)
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ReadType: InOrder
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Parts: 1
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Granules: 3
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-----------------
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ReadFromMergeTree (default.test_index)
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ReadType: InReverseOrder
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Parts: 1
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Granules: 3
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ReadFromMergeTree (default.idx)
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Indexes:
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PrimaryKey
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Keys:
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x
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plus(x, y)
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Condition: or((x in 2-element set), (plus(plus(x, y), 1) in (-Inf, 2]))
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Parts: 1/1
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Granules: 1/1
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@ -5,42 +5,45 @@ CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
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# shellcheck source=../shell_config.sh
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. "$CURDIR"/../shell_config.sh
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CLICKHOUSE_CLIENT="$CLICKHOUSE_CLIENT --optimize_move_to_prewhere=1 --convert_query_to_cnf=0 --optimize_read_in_order=1"
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for i in $(seq 0 1)
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do
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CH_CLIENT="$CLICKHOUSE_CLIENT --optimize_move_to_prewhere=1 --convert_query_to_cnf=0 --optimize_read_in_order=1 --allow_experimental_analyzer=$i"
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$CLICKHOUSE_CLIENT -q "drop table if exists test_index"
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$CLICKHOUSE_CLIENT -q "drop table if exists idx"
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$CH_CLIENT -q "drop table if exists test_index"
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$CH_CLIENT -q "drop table if exists idx"
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$CLICKHOUSE_CLIENT -q "create table test_index (x UInt32, y UInt32, z UInt32, t UInt32, index t_minmax t % 20 TYPE minmax GRANULARITY 2, index t_set t % 19 type set(4) granularity 2) engine = MergeTree order by (x, y) partition by (y, bitAnd(z, 3), intDiv(t, 15)) settings index_granularity = 2, min_bytes_for_wide_part = 0, ratio_of_defaults_for_sparse_serialization = 1"
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$CLICKHOUSE_CLIENT -q "insert into test_index select number, number > 3 ? 3 : number, number = 1 ? 1 : 0, number from numbers(20)"
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$CH_CLIENT -q "create table test_index (x UInt32, y UInt32, z UInt32, t UInt32, index t_minmax t % 20 TYPE minmax GRANULARITY 2, index t_set t % 19 type set(4) granularity 2) engine = MergeTree order by (x, y) partition by (y, bitAnd(z, 3), intDiv(t, 15)) settings index_granularity = 2, min_bytes_for_wide_part = 0, ratio_of_defaults_for_sparse_serialization = 1"
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$CH_CLIENT -q "insert into test_index select number, number > 3 ? 3 : number, number = 1 ? 1 : 0, number from numbers(20)"
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$CLICKHOUSE_CLIENT -q "
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explain indexes = 1 select *, _part from test_index where t % 19 = 16 and y > 0 and bitAnd(z, 3) != 1 and x > 10 and t % 20 > 14;
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" | grep -A 100 "ReadFromMergeTree" # | grep -v "Description"
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$CH_CLIENT -q "
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explain indexes = 1 select *, _part from test_index where t % 19 = 16 and y > 0 and bitAnd(z, 3) != 1 and x > 10 and t % 20 > 14;
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" | grep -A 100 "ReadFromMergeTree" # | grep -v "Description"
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echo "-----------------"
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echo "-----------------"
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$CLICKHOUSE_CLIENT -q "
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explain indexes = 1, json = 1 select *, _part from test_index where t % 19 = 16 and y > 0 and bitAnd(z, 3) != 1 and x > 10 and t % 20 > 14 format TSVRaw;
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" | grep -A 100 "ReadFromMergeTree" # | grep -v "Description"
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$CH_CLIENT -q "
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explain indexes = 1, json = 1 select *, _part from test_index where t % 19 = 16 and y > 0 and bitAnd(z, 3) != 1 and x > 10 and t % 20 > 14 format TSVRaw;
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" | grep -A 100 "ReadFromMergeTree" # | grep -v "Description"
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echo "-----------------"
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echo "-----------------"
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$CLICKHOUSE_CLIENT -q "
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explain actions = 1 select x from test_index where x > 15 order by x;
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" | grep -A 100 "ReadFromMergeTree"
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$CH_CLIENT -q "
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explain actions = 1 select x from test_index where x > 15 order by x;
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" | grep -A 100 "ReadFromMergeTree"
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echo "-----------------"
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echo "-----------------"
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$CLICKHOUSE_CLIENT -q "
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explain actions = 1 select x from test_index where x > 15 order by x desc;
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" | grep -A 100 "ReadFromMergeTree"
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$CH_CLIENT -q "
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explain actions = 1 select x from test_index where x > 15 order by x desc;
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" | grep -A 100 "ReadFromMergeTree"
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$CLICKHOUSE_CLIENT -q "CREATE TABLE idx (x UInt32, y UInt32, z UInt32) ENGINE = MergeTree ORDER BY (x, x + y) settings min_bytes_for_wide_part = 0, ratio_of_defaults_for_sparse_serialization = 1"
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$CLICKHOUSE_CLIENT -q "insert into idx select number, number, number from numbers(10)"
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$CH_CLIENT -q "CREATE TABLE idx (x UInt32, y UInt32, z UInt32) ENGINE = MergeTree ORDER BY (x, x + y) settings min_bytes_for_wide_part = 0, ratio_of_defaults_for_sparse_serialization = 1"
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$CH_CLIENT -q "insert into idx select number, number, number from numbers(10)"
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$CLICKHOUSE_CLIENT -q "
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explain indexes = 1 select z from idx where not(x + y + 1 > 2 and x not in (4, 5))
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" | grep -A 100 "ReadFromMergeTree"
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$CH_CLIENT -q "
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explain indexes = 1 select z from idx where not(x + y + 1 > 2 and x not in (4, 5))
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" | grep -A 100 "ReadFromMergeTree"
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$CLICKHOUSE_CLIENT -q "drop table if exists test_index"
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$CLICKHOUSE_CLIENT -q "drop table if exists idx"
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$CH_CLIENT -q "drop table if exists test_index"
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$CH_CLIENT -q "drop table if exists idx"
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done
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