kennknowles commented on a change in pull request #10990: disable coder
inference for rows
URL: https://github.com/apache/beam/pull/10990#discussion_r385303509
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File path:
sdks/java/extensions/sql/src/main/java/org/apache/beam/sdk/extensions/sql/impl/rel/BeamSetOperatorRelBase.java
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@@ -65,6 +66,16 @@ public BeamSetOperatorRelBase(BeamRelNode beamRelNode,
OpType opType, boolean al
inputs);
PCollection<Row> leftRows = inputs.get(0);
PCollection<Row> rightRows = inputs.get(1);
+ Schema leftSchema = leftRows.getSchema();
+ Schema rightSchema = rightRows.getSchema();
+ if (!leftSchema.typesEqual(rightSchema)) {
+ throw new IllegalArgumentException(
+ "Can't intersect two tables with different schemas."
Review comment:
This is the base class, so shouldn't be calling it "intersect". Incidentally
I don't think having a base class adds much value here, so inlining or
inverting would be a-ok.
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