Github user paul-rogers commented on a diff in the pull request:
https://github.com/apache/drill/pull/808#discussion_r120485024
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/ExternalSortBatch.java
---
@@ -346,9 +346,7 @@ public IterOutcome innerNext() {
if (unionTypeEnabled) {
this.schema = SchemaUtil.mergeSchemas(schema,
incoming.getSchema());
} else {
- throw SchemaChangeException.schemaChanged("Schema changes
not supported in External Sort. Please enable Union type",
- schema,
- incoming.getSchema());
+ throw new SchemaChangeException("Schema changes not
supported in External Sort. Please enable Union type");
--- End diff --
Fixed. Converted to a UserException, else the fragment executor will wrap
the schema change exception with some generic message.
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