arina-ielchiieva commented on a change in pull request #2018: DRILL-7633: Fixes
for union and repeated list accessors
URL: https://github.com/apache/drill/pull/2018#discussion_r390202680
##########
File path:
exec/vector/src/main/java/org/apache/drill/exec/record/metadata/VariantColumnMetadata.java
##########
@@ -96,11 +134,13 @@ public StructureType structureType() {
public boolean isVariant() { return true; }
@Override
- public boolean isArray() { return type() == MinorType.LIST; }
+ public boolean isArray() {
+ return super.isArray() || type() == MinorType.LIST;
+ }
@Override
public ColumnMetadata cloneEmpty() {
- return new VariantColumnMetadata(name, type, variantSchema.cloneEmpty());
+ return new VariantColumnMetadata(name, type, mode, new VariantSchema());
Review comment:
Also this class should override `public String typeString()` which is used
during ser / de.
For example, `UNION<INT, VARCHAR, BOOLEAN>`. Not sure how to describe LIST
though...
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