Github user kevinjmh commented on a diff in the pull request: https://github.com/apache/carbondata/pull/2665#discussion_r219376540 --- Diff: core/src/main/java/org/apache/carbondata/core/indexstore/blockletindex/BlockletDataMapFactory.java --- @@ -364,6 +365,13 @@ public DataMapMeta getMeta() { return null; } + @Override + public boolean isSupport(Expression expression) { + // this method is used for choosing cg/fg datamap + // for default datamap always return false + return false; --- End diff -- I get your point. I will change it to return true for better code reading. Also will add checking meta info( meta of default datamap is NULLnow) to avoid null point exception
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