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https://issues.apache.org/jira/browse/CASSANDRA-7052?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sylvain Lebresne updated CASSANDRA-7052:
----------------------------------------
Attachment: 7052.txt
We do (sometimes) asks for one more result than the user LIMIT with compact
tables to handle exclusive bounds (since without a CompositeType underneath,
all we support is inclusive bounds internally) and we're properly adjusting
post-query on 2.0. Attaching fix (and pushed the repro test above to dtests).
> Query on compact storage with limit returns extra rows
> ------------------------------------------------------
>
> Key: CASSANDRA-7052
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7052
> Project: Cassandra
> Issue Type: Bug
> Reporter: Stuart Freeman
> Assignee: Sylvain Lebresne
> Fix For: 2.0.8
>
> Attachments: 7052.txt
>
>
> I tested this on Cassandra 2.0.6 and 2.0.3 and got the same result on both:
> {code}
> cqlsh> create KEYSPACE "test" WITH replication = {'class': 'SimpleStrategy',
> 'replication_factor': 1};
> cqlsh> USE "test";
> cqlsh:test> CREATE COLUMNFAMILY "VerifyPagedColumnQueryStartAndEnd" ("keyId"
> text, "columnName" text, "value" text, PRIMARY KEY ("keyId", "columnName"))
> WITH COMPACT STORAGE;
> cqlsh:test> INSERT INTO "VerifyPagedColumnQueryStartAndEnd" ("keyId",
> "columnName", "value") VALUES ( 'key', 'a', '1' ) ;
> cqlsh:test> INSERT INTO "VerifyPagedColumnQueryStartAndEnd" ("keyId",
> "columnName", "value") VALUES ( 'key', 'b', '1' ) ;
> cqlsh:test> INSERT INTO "VerifyPagedColumnQueryStartAndEnd" ("keyId",
> "columnName", "value") VALUES ( 'key', 'c', '1' ) ;
> cqlsh:test> INSERT INTO "VerifyPagedColumnQueryStartAndEnd" ("keyId",
> "columnName", "value") VALUES ( 'key', 'd', '1' ) ;
> cqlsh:test> INSERT INTO "VerifyPagedColumnQueryStartAndEnd" ("keyId",
> "columnName", "value") VALUES ( 'key', 'e', '1' ) ;
> cqlsh:test> SELECT * FROM "VerifyPagedColumnQueryStartAndEnd" WHERE "keyId" =
> 'key' AND "columnName" > '' AND "columnName" <= 'e' LIMIT 2;
> keyId | columnName | value
> -------+------------+-------
> key | a | 1
> key | b | 1
> key | c | 1
> (3 rows)
> cqlsh:test>
> {code}
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