[GitHub] flink pull request #3559: [flink-6037] [Table API & SQL]hotfix: metadata pro...

2017-03-18 Thread beyond1920
Github user beyond1920 commented on a diff in the pull request:

https://github.com/apache/flink/pull/3559#discussion_r106797445
  
--- Diff: 
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/calcite/FlinkPlannerImpl.scala
 ---
@@ -100,6 +101,7 @@ class FlinkPlannerImpl(
   assert(validatedSqlNode != null)
   val rexBuilder: RexBuilder = createRexBuilder
   val cluster: RelOptCluster = RelOptCluster.create(planner, 
rexBuilder)
+  cluster.setMetadataProvider(FlinkDefaultRelMetadataProvider.INSTANCE)
--- End diff --

Because this logic is called in 
org.apache.calcite.sql2rel.SqlToRelConverter.convertQuery, which like
`RelMetadataQuery.THREAD_PROVIDERS.set(
JaninoRelMetadataProvider.of(cluster.getMetadataProvider()));`


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[GitHub] flink pull request #3559: [flink-6037] [Table API & SQL]hotfix: metadata pro...

2017-03-18 Thread KurtYoung
Github user KurtYoung commented on a diff in the pull request:

https://github.com/apache/flink/pull/3559#discussion_r106796945
  
--- Diff: 
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/calcite/FlinkPlannerImpl.scala
 ---
@@ -100,6 +101,7 @@ class FlinkPlannerImpl(
   assert(validatedSqlNode != null)
   val rexBuilder: RexBuilder = createRexBuilder
   val cluster: RelOptCluster = RelOptCluster.create(planner, 
rexBuilder)
+  cluster.setMetadataProvider(FlinkDefaultRelMetadataProvider.INSTANCE)
--- End diff --

I remembered that in #3058 you also set the provider to 
`RelMetadataQuery.THREAD_PROVIDERS` by calling:
```

RelMetadataQuery.THREAD_PROVIDERS.set(JaninoRelMetadataProvider.of(cluster.getMetadataProvider))
```
Why it's not needed here?


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[GitHub] flink pull request #3559: [flink-6037] [Table API & SQL]hotfix: metadata pro...

2017-03-17 Thread beyond1920
GitHub user beyond1920 opened a pull request:

https://github.com/apache/flink/pull/3559

[flink-6037] [Table API & SQL]hotfix: metadata provider didn't work in SQL

This pr aims to fix a bug referenced by 
https://issues.apache.org/jira/browse/FLINK-6037.
After using the right MetadataProvider, 
org.apache.flink.table.ExpressionReductionTest.testReduceCalcExpressionForBatchSQL
 test cannot pass because the optimized plan is changed (The problem is 
referenced by https://issues.apache.org/jira/browse/FLINK-6067 which would be 
fixed in another pr). I simply changed test sql to make it pass in this pr.

You can merge this pull request into a Git repository by running:

$ git pull https://github.com/alibaba/flink hotfix

Alternatively you can review and apply these changes as the patch at:

https://github.com/apache/flink/pull/3559.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

This closes #3559


commit bd83041507b3f4fdea737b538fb39af4a249e6d2
Author: jingzhang 
Date:   2017-03-17T09:47:35Z

fix the bug: metadata provider didn't work in SQL




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