Kenan Yao 09a5c8028e plan: derive col is not null from col op col conditions (#8603) ...

Check whether the `op` condition is null rejected, if yes, derive
`col is not null` for both sides of inner join, and for inner side
of outer join.

Also, remove duplicate conditions before pushing them down. Check
if the condition is mutable before removing duplicates.

For AntiSemiJoin, AntiLeftOuterSemiJoin and LeftOuterSemiJoin, do
not generate new `is not null` conditions.

2019-01-30 10:53:46 +08:00

..

benchdb

*: refactor Executor.Next() to receive RecordBatch (#8994)

2019-01-14 15:04:36 +08:00

benchfilesort

*: rename "github.com/pkg/errors" to "github.com/pingcap/errors" (#8136)

2018-11-01 16:09:07 +08:00

benchkv

*: change golang.org/x/net/context to standard context (#8579)

2018-12-05 13:54:00 +08:00

benchraw

*: rename "github.com/pkg/errors" to "github.com/pingcap/errors" (#8136)

2018-11-01 16:09:07 +08:00

explaintest

plan: derive col is not null from col op col conditions (#8603)

2019-01-30 10:53:46 +08:00

importer

*: fix some lints produced by golangci-lint (#8999)

2019-01-16 16:44:49 +08:00

pluginpkg

plugin: introduce plugin framework (#8788)

2019-01-14 10:08:50 +08:00