39 lines
1.5 KiB
JSON
39 lines
1.5 KiB
JSON
[
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{
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"name": "TestPushLimitDownIndexLookUpReader",
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"cases": [
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// Limit should be pushed down into IndexLookUpReader, row count of IndexLookUpReader and TableScan should be 1.00.
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"explain select * from tbl use index(idx_b_c) where b > 1 limit 2,1",
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// Projection atop IndexLookUpReader, Limit should be pushed down into IndexLookUpReader, and Projection should have row count 1.00 as well.
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"explain select * from tbl use index(idx_b_c) where b > 1 order by b desc limit 2,1",
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// Limit should be pushed down into IndexLookUpReader when Selection on top of IndexScan.
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"explain select * from tbl use index(idx_b_c) where b > 1 and c > 1 limit 2,1",
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// Limit should NOT be pushed down into IndexLookUpReader when Selection on top of TableScan.
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"explain select * from tbl use index(idx_b_c) where b > 1 and a > 1 limit 2,1"
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]
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},
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{
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"name": "TestIsFromUnixtimeNullRejective",
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"cases": [
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// fix #12385
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"explain select * from t t1 left join t t2 on t1.a=t2.a where from_unixtime(t2.b);"
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]
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},
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{
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"name": "TestSimplifyOuterJoinWithCast",
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"cases": [
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// LeftOuterJoin should no be simplified to InnerJoin.
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"explain select * from t t1 left join t t2 on t1.a = t2.a where cast(t1.b as date) >= '2019-01-01'"
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]
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},
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{
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"name": "TestPartitionTableStats",
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"cases": [
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"explain select * from t order by a",
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"select * from t order by a",
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"explain select * from t order by a limit 3",
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"select * from t order by a limit 3"
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]
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}
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]
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