mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-15 02:41:59 +00:00
32 lines
1.5 KiB
Plaintext
32 lines
1.5 KiB
Plaintext
CREATE TABLE default.t1\n(\n `a` Float64 STATISTIC(tdigest),\n `b` Int64 STATISTIC(tdigest),\n `pk` String\n)\nENGINE = MergeTree\nORDER BY pk\nSETTINGS min_bytes_for_wide_part = 0, index_granularity = 8192
|
|
After insert
|
|
Prewhere info
|
|
Prewhere filter
|
|
Prewhere filter column: and(less(a, 10), less(b, 10)) (removed)
|
|
10
|
|
0
|
|
After drop statistic
|
|
Prewhere info
|
|
Prewhere filter
|
|
Prewhere filter column: and(less(b, 10), less(a, 10)) (removed)
|
|
10
|
|
CREATE TABLE default.t1\n(\n `a` Float64,\n `b` Int64,\n `pk` String\n)\nENGINE = MergeTree\nORDER BY pk\nSETTINGS min_bytes_for_wide_part = 0, index_granularity = 8192
|
|
After add statistic
|
|
CREATE TABLE default.t1\n(\n `a` Float64 STATISTIC(tdigest),\n `b` Int64 STATISTIC(tdigest),\n `pk` String\n)\nENGINE = MergeTree\nORDER BY pk\nSETTINGS min_bytes_for_wide_part = 0, index_granularity = 8192
|
|
After materialize statistic
|
|
Prewhere info
|
|
Prewhere filter
|
|
Prewhere filter column: and(less(a, 10), less(b, 10)) (removed)
|
|
20
|
|
After merge
|
|
Prewhere info
|
|
Prewhere filter
|
|
Prewhere filter column: and(less(a, 10), less(b, 10)) (removed)
|
|
20
|
|
CREATE TABLE default.t1\n(\n `a` Float64 STATISTIC(tdigest),\n `c` Int64 STATISTIC(tdigest),\n `pk` String\n)\nENGINE = MergeTree\nORDER BY pk\nSETTINGS min_bytes_for_wide_part = 0, index_granularity = 8192
|
|
After rename
|
|
Prewhere info
|
|
Prewhere filter
|
|
Prewhere filter column: and(less(a, 10), less(c, 10)) (removed)
|
|
20
|