Github user Serhii-Harnyk commented on a diff in the pull request:
https://github.com/apache/drill/pull/594#discussion_r101759433
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/vector/complex/fn/JsonReader.java
---
@@ -492,7 +538,19 @@ private void writeDataAllText(MapWriter map,
FieldSelection selection,
}
}
map.end();
+ }
+ /**
+ * Puts copy of field path list to fieldPathWriter map.
+ * @param fieldName
+ */
+ private void putFieldPath(String fieldName, MapWriter map) {
--- End diff --
I attached results of testing on the last fix to the Jira.
https://drive.google.com/open?id=1l3Dg0DCV3p-OhwA0v6qdl2wGcezXDl5qaUqv56EEBn8
It should be mentioned that a lot of time goes to the creating fields and
them writers. So times of execution also compared with time of querying files,
in which nulls replaced by varchar.
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