xtern commented on code in PR #2397:
URL: https://github.com/apache/ignite-3/pull/2397#discussion_r1286744571
##########
modules/sql-engine/src/main/java/org/apache/ignite/internal/sql/engine/rule/TableModifyConverterRule.java:
##########
@@ -126,4 +138,34 @@ private static PhysicalNode
createAggregate(IgniteTableModify tableModify, RelOp
return new IgniteProject(cluster,
outTrait.replace(IgniteDistributions.single()), sumAgg, projections,
convertedRowType);
}
+
+ /**
+ * To perform delete we need row with key fields only.
+ * But input distribution contains the indexes of the key columns
according to the schema (i.e. for the full row).
+ * This method aligns the keys to their indexes so that a row containing
only the key fields can be read.
+ *
+ * <pre>
Review Comment:
Expanded javadoc with more descriptive examples.
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