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Nov 27, 2020; 6:08am
URL: http://apache-carbondata-dev-mailing-list-archive.168.s1.nabble.com/GitHub-carbondata-nihal0107-opened-a-new-pull-request-4000-WIP-CARBONDATA-4020-Fixed-drop-index-whens-tp103032p103713.html
VenuReddy2103 commented on a change in pull request #4000:
URL:
https://github.com/apache/carbondata/pull/4000#discussion_r531399137##########
File path: integration/spark/src/main/scala/org/apache/spark/sql/execution/command/index/DropIndexCommand.scala
##########
@@ -184,10 +184,12 @@ private[sql] case class DropIndexCommand(
parentCarbonTable = getRefreshedParentTable(sparkSession, dbName)
val indexMetadata = parentCarbonTable.getIndexMetadata
if (null != indexMetadata && null != indexMetadata.getIndexesMap) {
- val hasCgFgIndexes =
- !(indexMetadata.getIndexesMap.size() == 1 &&
- indexMetadata.getIndexesMap.containsKey(IndexType.SI.getIndexProviderName))
- if (hasCgFgIndexes) {
+ // check if any CG or FG index exists. If not exists,
+ // then set indexExists as false to return empty index list for next query.
+ val hasCgFgIndexes = indexMetadata.getIndexesMap.size() != 0 &&
Review comment:
`indexMetadata.getIndexesMap.size() != 0` would always be true at this point. `indexMetadata` will be null if empty.
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