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Konstantin commented on CASSANDRA-15641: ---------------------------------------- Konstantin Osipov what I am curious about though, is there any way to hit the code path I highlighted? I can't build a relevant query beobal 8:38 PM @Konstantin Osipov session.execute(SimpleStatement("select * from ks.t where a in (1, 2) ", fetch_size=-1, consistency_level=ConsistencyLevel.SERIAL)) Konstantin Osipov 8:39 PM why does fetch_size matter? there is only a handful of rows in the table anyway.. beobal 8:41 PM fetch_size=-1 disables paging. With paging enabled the multiple single partition reads are executed separately (and paged), but disabling it shortcuts that and goes straight to StorageProxy::read with a group of size 2 > No error if consistency_level = SERIAL and unqualified select > ------------------------------------------------------------- > > Key: CASSANDRA-15641 > URL: https://issues.apache.org/jira/browse/CASSANDRA-15641 > Project: Cassandra > Issue Type: Bug > Components: CQL/Semantics > Reporter: Konstantin > Priority: Normal > Attachments: test.py > > > The attached test program produces no errors, while doesn't provide serial > consistency. There is no exception that the consistency level is incorrect. > It's simply silently downgraded. The issue is not documented either. > kostja@atlas ~ % python test.py > Row(a=1, b=1) > Row(a=0, b=0) > Row(a=2, b=2) > Row(a=3, b=3) > Row(a=1, b=1) > Row(a=2, b=2) > The behavior is contrary to the original intent by LWT author, since the code > has the following check: > if (group.queries.size() > 1) > throw new InvalidRequestException("SERIAL/LOCAL_SERIAL > consistency may only be requested for one partition at a time"); > https://github.com/apache/cassandra/blob/cassandra-3.11/src/java/org/apache/cassandra/service/StorageProxy.java#L1593 -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org