arina-ielchiieva commented on a change in pull request #1492: DRILL-6773: The
renamed schema with aliases is not shown for queries on empty directories
URL: https://github.com/apache/drill/pull/1492#discussion_r223058975
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/planner/physical/visitor/StarColumnConverter.java
##########
@@ -118,13 +118,23 @@ private Prel insertProjUnderScreenOrWriter(Prel prel,
RelDataType origRowType, P
RelDataType newRowType =
RexUtil.createStructType(child.getCluster().getTypeFactory(),
exprs, origRowType.getFieldNames(), null);
- int fieldCount = prel.getRowType().isStruct()?
prel.getRowType().getFieldCount():1;
+ int fieldCount = prel.getRowType().isStruct() ?
prel.getRowType().getFieldCount() : 1;
// Insert PUS/PUW : remove the prefix and keep the original field name.
- if (fieldCount > 1) { // // no point in allowing duplicates if we only
have one column
- proj = new ProjectAllowDupPrel(child.getCluster(), child.getTraitSet(),
child, exprs, newRowType);
+ if (fieldCount > 1) { // no point in allowing duplicates if we only have
one column
+ proj = new ProjectAllowDupPrel(child.getCluster(),
+ child.getTraitSet(),
+ child,
+ exprs,
+ newRowType,
+ true);
Review comment:
Please add explanation about this change.
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