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Identify and support push down for common functions #1847
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Here's a list of expreesions supporte by TiKV but not supported by TiFlash:
I suggest we can implement all Op funcitons and Comparison functions first, since they are common and well defined. |
Comparison functions: #1863 |
Enum expressions: #1880 |
Clickhouse has Tracking in #1908 |
str_to_date needed from customers |
Could we support the mod function push down? The CH-benCHmark contains a lot of queries that contains mod function. |
In sprint 4, we plan to support:
mod
in TiFlash #2318)IsTrueWithNull
,IsTrue
andIsFalseWithNull
,IsFalse
in TiFlash #1863): IsTrueWithNull, IsTrueWithoutNull, IsFalsity, NullEQLeftShift
andRightShift
bit operations #1900 and Support pushdownLogicalXor
function #1902): LeftShift, RightShift, LogicXorSprint 3 done:
replace
in TiFlash #1860)List by PM: https://docs.google.com/spreadsheets/d/1FUoFEhXXVFskkBLtTfGI0XqlgveW_IdFTOgvYD7PNcA/edit#gid=508440363
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