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32 lines
1.5 KiB
Plaintext
32 lines
1.5 KiB
Plaintext
CREATE TABLE default.tab\n(\n `a` Float64 STATISTICS(tdigest),\n `b` Int64 STATISTICS(tdigest),\n `pk` String\n)\nENGINE = MergeTree\nORDER BY pk\nSETTINGS min_bytes_for_wide_part = 0, index_granularity = 8192
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After insert
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Prewhere info
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Prewhere filter
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Prewhere filter column: and(less(a, 10), less(b, 10)) (removed)
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10
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0
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After drop statistic
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Prewhere info
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Prewhere filter
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Prewhere filter column: and(less(b, 10), less(a, 10)) (removed)
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10
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CREATE TABLE default.tab\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
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After add statistic
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CREATE TABLE default.tab\n(\n `a` Float64 STATISTICS(tdigest),\n `b` Int64 STATISTICS(tdigest),\n `pk` String\n)\nENGINE = MergeTree\nORDER BY pk\nSETTINGS min_bytes_for_wide_part = 0, index_granularity = 8192
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After materialize statistic
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Prewhere info
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Prewhere filter
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Prewhere filter column: and(less(a, 10), less(b, 10)) (removed)
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20
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After merge
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Prewhere info
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Prewhere filter
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Prewhere filter column: and(less(a, 10), less(b, 10)) (removed)
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20
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CREATE TABLE default.tab\n(\n `a` Float64 STATISTICS(tdigest),\n `c` Int64 STATISTICS(tdigest),\n `pk` String\n)\nENGINE = MergeTree\nORDER BY pk\nSETTINGS min_bytes_for_wide_part = 0, index_granularity = 8192
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After rename
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Prewhere info
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Prewhere filter
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Prewhere filter column: and(less(a, 10), less(c, 10)) (removed)
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20
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