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https://issues.apache.org/jira/browse/CASSANDRA-14209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16363977#comment-16363977
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Andrés de la Peña commented on CASSANDRA-14209:
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The patch with the thorough tests looks good to me, +1
> group by select queries query results differ when using select * vs select
> fields
> ---------------------------------------------------------------------------------
>
> Key: CASSANDRA-14209
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14209
> Project: Cassandra
> Issue Type: Bug
> Reporter: Digant Modha
> Assignee: Benjamin Lerer
> Priority: Minor
> Attachments: Re group by select queries.txt
>
>
> {{I get two different out with these 2 queries. The only difference between
> the 2 queries is that one does ‘select *’ and other does ‘select specific
> fields’ without any aggregate functions.}}
> {{I am using Apache Cassandra 3.10.}}
> {{Consistency level set to LOCAL_QUORUM.}}
> {{cassandra@cqlsh> select * from wp.position where account_id = 'user_1';}}
> {{ account_id | security_id | counter | avg_exec_price | pending_quantity |
> quantity | transaction_id | update_time}}
> {{------------+-------------+---------+----------------+------------------+----------+----------------+---------------------------------}}
> {{ user_1 | AMZN | 2 | 1239.2 | 0 | 1011 | null | 2018-01-25
> 17:18:07.158000+0000}}
> {{ user_1 | AMZN | 1 | 1239.2 | 0 | 1010 | null | 2018-01-25
> 17:18:07.158000+0000}}
> {{(2 rows)}}
> {{cassandra@cqlsh> select * from wp.position where account_id = 'user_1'
> group by security_id;}}
> {{ account_id | security_id | counter | avg_exec_price | pending_quantity |
> quantity | transaction_id | update_time}}
> {{------------+-------------+---------+----------------+------------------+----------+----------------+---------------------------------}}
> {{ user_1 | AMZN | 1 | 1239.2 | 0 | 1010 | null | 2018-01-25
> 17:18:07.158000+0000}}
> {{(1 rows)}}
> {{cassandra@cqlsh> select account_id,security_id, counter,
> avg_exec_price,quantity, update_time from wp.position where account_id =
> 'user_1' group by security_id ;}}
> {{ account_id | security_id | counter | avg_exec_price | quantity |
> update_time}}
> {{------------+-------------+---------+----------------+----------+---------------------------------}}
> {{ user_1 | AMZN | 2 | 1239.2 | 1011 | 2018-01-25 17:18:07.158000+0000}}
> {{(1 rows)}}
> {{Table Description:}}
> {{CREATE TABLE wp.position (}}
> {{ account_id text,}}
> {{ security_id text,}}
> {{ counter bigint,}}
> {{ avg_exec_price double,}}
> {{ pending_quantity double,}}
> {{ quantity double,}}
> {{ transaction_id uuid,}}
> {{ update_time timestamp,}}
> {{ PRIMARY KEY (account_id, security_id, counter)}}
> {{) WITH CLUSTERING ORDER BY (security_id ASC, counter DESC)}}{{ }}
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