Github user jackylk commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/2122#discussion_r178422490
--- Diff:
core/src/main/java/org/apache/carbondata/core/datamap/IndexDataMapProvider.java
---
@@ -41,6 +41,9 @@ public IndexDataMapProvider(DataMapSchemaStorageProvider
storageProvider) {
@Override
public void initMeta(CarbonTable mainTable, DataMapSchema dataMapSchema,
String ctasSqlStatement)
throws MalformedDataMapCommandException, IOException {
+ if (mainTable == null) {
+ throw new MalformedDataMapCommandException("Parent table required to
create index");
--- End diff --
change to `Parent table is required to create datamap`
---
