ekaterinadimitrova2 commented on a change in pull request #1083:
URL: https://github.com/apache/cassandra/pull/1083#discussion_r660078145
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File path: src/java/org/apache/cassandra/db/SinglePartitionReadCommand.java
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@@ -1033,7 +1033,15 @@ private ClusteringIndexNamesFilter
reduceFilter(ClusteringIndexNamesFilter filte
SearchIterator<Clustering, Row> searchIter =
result.searchIterator(columnFilter(), false);
- PartitionColumns columns = columnFilter().fetchedColumns();
+ // According to the CQL semantics a row exists if at least one of its
columns is not null (including the primary key columns).
+ // Having the queried columns not null is unfortunately not enough to
prove that a row exists has some column deletion
Review comment:
`// Having the queried columns not null is unfortunately not enough to
prove that a row exists because some column deletion`
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File path:
test/distributed/org/apache/cassandra/distributed/test/SinglePartitionReadCommandTest.java
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@@ -144,4 +144,47 @@ public void
testPartitionWithStaticColumnsOnlyOnOneNodeAndColumnDeletionOnTheOth
assertRows(cluster.coordinator(2).execute(withKeyspace("SELECT
DISTINCT s1 FROM %s.tbl WHERE pk=2"), ConsistencyLevel.ALL));
}
}
+
+ @Test
+ public void testNonCompactTableWithEmptyRowOnBothNodes() throws Throwable
Review comment:
I think you meant empty column, not really a row?
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