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From "Sylvain Lebresne (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (CASSANDRA-10811) Prepared SELECT * queries return incorrect columns after schema change
Date Fri, 04 Dec 2015 16:39:11 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-10811?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sylvain Lebresne resolved CASSANDRA-10811.
------------------------------------------
    Resolution: Duplicate

Agreed with Tyler, it's a duplicate.

> Prepared SELECT * queries return incorrect columns after schema change
> ----------------------------------------------------------------------
>
>                 Key: CASSANDRA-10811
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10811
>             Project: Cassandra
>          Issue Type: Bug
>          Components: CQL
>         Environment: Cassandra 2.2.3
> Java driver 2.1.9
>            Reporter: Adam Warski
>             Fix For: 2.2.x, 3.0.x, 3.x
>
>
> (see also the test case attached)
> When executing the following steps using a single {{com.datastax.driver.core.Session}}:
> 1. create table with column {{a}} and {{c}}
> 2. insert a single row with values for both columns
> 3. select that row using a prepared statement ({{SELECT * FROM table WHERE id=?}})
> 4. alter the table adding a new column {{b}}
> 5. select the row using a prepared statement (preparing the statement again, not re-using
the old one)
> The value of the {{c}} column is not returned, instead there's a {{NULL}} (which I suppose
is the value of the newly inserted {{b}} column).
> The query returns correct results if:
> * step 3 is skipped, that is there is no prepared select before altering the table
> * a normal, non-prepared select is done
> * a select with explicitly enumerated fields is done
> * a new session is created
> * the new column is alphabetically larger than the existing columns (e.g. {{d}})



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