[GitHub] vrozov commented on a change in pull request #1445: DRILL-6706: fixed null pointer exception in HashJoin

[GitBox <gi...@apache.org>]

vrozov commented on a change in pull request #1445: DRILL-6706: fixed null pointer exception in HashJoin
URL: https://github.com/apache/drill/pull/1445#discussion_r212831254
 
 

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 File path: exec/java-exec/src/main/java/org/apache/drill/exec/store/parquet/columnreaders/ParquetSchema.java
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 @@ -228,7 +228,7 @@ public void createNonExistentColumns(OutputMutator output, List<NullableIntVecto
 
   private NullableIntVector createMissingColumn(SchemaPath col, OutputMutator output) throws SchemaChangeException {
     // col.toExpr() is used here as field name since we don't want to see these fields in the existing maps
-    MaterializedField field = MaterializedField.create(col.toExpr(),
+    MaterializedField field = MaterializedField.create(col.toExpr().replace('`',' ').trim(),
 
 Review comment:
   Why is it necessary to replace \` with a space to trim it later?

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