Github user jackylk commented on a diff in the pull request:
https://github.com/apache/incubator-carbondata/pull/653#discussion_r105921062
--- Diff:
integration/spark2/src/main/scala/org/apache/spark/sql/CarbonDictionaryDecoder.scala
---
@@ -200,6 +201,123 @@ case class CarbonDictionaryDecoder(
}
}
+ override def doConsume(ctx: CodegenContext, input: Seq[ExprCode], row:
ExprCode): String = {
+
+ val storePath = CarbonEnv.get.carbonMetastore.storePath
+ val absoluteTableIdentifiers = relations.map { relation =>
+ val carbonTable =
relation.carbonRelation.carbonRelation.metaData.carbonTable
+ (carbonTable.getFactTableName,
carbonTable.getAbsoluteTableIdentifier)
+ }.toMap
+
+ if (isRequiredToDecode) {
+ val cacheProvider: CacheProvider = CacheProvider.getInstance
+ val forwardDictionaryCache: Cache[DictionaryColumnUniqueIdentifier,
Dictionary] =
+ cacheProvider.createCache(CacheType.FORWARD_DICTIONARY, storePath)
+ val dicts: Seq[ForwardDictionaryWrapper] =
getDictionaryWrapper(absoluteTableIdentifiers,
+ forwardDictionaryCache, storePath)
+
+ val exprs = child.output.map(x =>
+ ExpressionCanonicalizer.execute(BindReferences.bindReference(x,
child.output)))
+ ctx.currentVars = input
+ val resultVars = exprs.zipWithIndex.map { e =>
--- End diff --
change `e` to `case (expr, index)`
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