paul-rogers commented on a change in pull request #1925: DRILL-7472: Fix ser /
de for sys and information_schema schemas queries
URL: https://github.com/apache/drill/pull/1925#discussion_r356989421
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/store/sys/SystemTableScan.java
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@@ -85,6 +83,12 @@ public PhysicalOperator
getNewWithChildren(List<PhysicalOperator> children) {
public void applyAssignments(List<DrillbitEndpoint> endpoints) {
}
+ @JsonIgnore
+ @Override
+ public List<SchemaPath> getColumns() {
+ return super.getColumns();
+ }
Review comment:
See note above. Columns are part of the logical plan and must be serialized.
To see this, do an `EXPLAIN PLAN FOR`. You'll see that the JSON includes the
column projection for other group scans.
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