Ben-Zvi commented on a change in pull request #1442: DRILL-6688 Data batches
for Project operator exceed the maximum specified
URL: https://github.com/apache/drill/pull/1442#discussion_r212761189
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/project/OutputWidthVisitor.java
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@@ -270,8 +270,10 @@ public OutputWidthExpression
visitIfElseWidthExpr(IfElseWidthExpr ifElseWidthExp
private OutputWidthExpression getFixedLenExpr(MajorType majorType) {
MajorType type = majorType;
if (Types.isFixedWidthType(type)) {
- int fixedWidth =
ProjectMemoryManager.getWidthOfFixedWidthType(type);
- return new OutputWidthExpression.FixedLenExpr(fixedWidth);
+ // Use only the width of the data. Metadata width will be
accounted for at the end
+ // This is to avoid using metadata size in intermediate
calculations
+ int fixedDataWidth =
ProjectMemoryManager.getDataWidthOfFixedWidthType(type);
Review comment:
Since here we're guaranteed to get a fixed with type, we could just call
TypeHelper.getSize() and eliminate getDataWidthOfFixedWidthType() . This does
not address the MinorType.NULL case, which is not clear how we get there ...
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