Github user vdiravka commented on a diff in the pull request:
https://github.com/apache/drill/pull/501#discussion_r66120908
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/ScanBatch.java
---
@@ -196,8 +196,8 @@ public IterOutcome next() {
releaseAssets();
done = true; // have any future call to next() return NONE
- if (mutator.isNewSchema()) {
- // This last reader has a new schema (e.g., we have a
zero-row
+ if (mutator.isNewTopLevelSchema()) {
--- End diff --
This method was added for the purpose to make count on map even when deeper
schema (child fields of map) was changed. But now I noticed that even simple
select query on Map with different deeper (child) schema doesn't work. That's
why no need in this method.
I returned to isNewShema method.
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