kangkaisen opened a new pull request #255: Simplify constant Expr
URL: https://github.com/apache/incubator-doris/pull/255
Simplify constant Expr could improve Partition Pruning. The examples for
constant Expr Simplifing:
```
1 + 1 + 1 --> 3
date_add('2018-08-08', 1) -->
kangkaisen opened a new pull request #256: Improve cardinality, avgRowSize,
numNodes stat info in OlapScanNode
URL: https://github.com/apache/incubator-doris/pull/256
Currently, the cardinality, avgRowSize, numNodes stat info in OlapScanNode
is none, So the broadcastCost and partitionCost
lide-reed closed pull request #254: Add DISCLAIMER
URL: https://github.com/apache/incubator-doris/pull/254
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kangkaisen opened a new pull request #249: Fix UnionStmt toSql bug
URL: https://github.com/apache/incubator-doris/pull/249
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kangkaisen opened a new pull request #253: Doris view support parenthesis
URL: https://github.com/apache/incubator-doris/pull/253
### How to Reproduce
1 Create a view
```
create view test_view (id) as select (1 + 2) % 3 as id;
```
2 query the view
```
select * from
kangkaisen opened a new pull request #252: Doris support NULLS LAST and NULLS
FIRST
URL: https://github.com/apache/incubator-doris/pull/252
Currently, when select * from table order by a,b,c desc, the NULL value
will be first. In real application, the users maybe want to the NULL value
lide-reed opened a new pull request #254: Add DISCLAIMER
URL: https://github.com/apache/incubator-doris/pull/254
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