The replay NPE bug has caused many cases that make all FE down.
To avoid this from happening, It’s necessary to check null when get DB and
Table object at any time.
I suggest that returns Optional object when get DB and Table object to
normalize the null check. DdlException and AnalysisException
+1
迟成 于2021年8月3日周二 下午6:16写道：
> The replay NPE bug has caused many cases that make all FE down.
> To avoid this from happening, It’s necessary to check null when get DB and
> Table object at any time.
> I suggest that returns Optional object when get DB and Table object to
> normalize the null ch
Doris's current statistics are only inaccurate table rows and table size.
Due to the lack of some more accurate column statistics, the Doris query
plan cannot evaluate and select a better plan. Also the current statistical
information is not a complete structure.
I propose to add a statistical inf
Add the issue[1] of this proposal.
Ling Miao
1. https://github.com/apache/incubator-doris/issues/6370
ling miao 于2021年8月3日周二 下午9:36写道：
> Doris's current statistics are only inaccurate table rows and table size.
> Due to the lack of some more accurate column statistics, the Doris query
> plan
