maedhroz commented on code in PR #2088:
URL: https://github.com/apache/cassandra/pull/2088#discussion_r1068640086
##########
src/java/org/apache/cassandra/cql3/statements/TransactionStatement.java:
##########
@@ -177,9 +178,16 @@ TxnNamedRead createNamedRead(NamedSelect namedSelect,
QueryOptions options)
SinglePartitionReadQuery.Group<SinglePartitionReadCommand> selectQuery
= (SinglePartitionReadQuery.Group<SinglePartitionReadCommand>) readQuery;
if (selectQuery.queries.size() != 1)
- throw new IllegalArgumentException("Within a transaction, SELECT
statements must select a single partition; found " + selectQuery.queries.size()
+ " partitions");
+ {
+ if (!TxnDataName.returning().equals(namedSelect.name))
+ throw new IllegalArgumentException("Within a transaction,
SELECT statements must select a single partition; found " +
selectQuery.queries.size() + " partitions");
Review Comment:
```suggestion
throw new IllegalArgumentException("Within a transaction,
implicit reads and reads within LET statements must select a single partition;
found " + selectQuery.queries.size() + " partitions");
```
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