Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/1862#discussion_r59181718
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/api/table/plan/TranslationContext.scala
---
@@ -53,21 +55,26 @@ object TranslationContext {
// configure sql parser
// we use Java lex because back ticks are easier than double quotes in
programming
// and cases are preserved
- val parserConfig = SqlParser.configBuilder().setLex(Lex.JAVA).build()
+ val parserConfig = SqlParser
+ .configBuilder()
+ .setLex(Lex.JAVA)
+ .build()
// initialize RelBuilder
frameworkConfig = Frameworks
.newConfigBuilder
.defaultSchema(tables)
.parserConfig(parserConfig)
.costFactory(new DataSetCostFactory)
- .traitDefs(ConventionTraitDef.INSTANCE)
+ .programs(Programs.ofRules(FlinkRuleSets.DATASET_OPT_RULES))
--- End diff --
I think this line can be removed because we set the rules explicitly before
calling the optimizer.
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