[jira] [Updated] (IGNITE-5361) SQL: naive handling of fixed length CHAR columns

["Vladimir Ozerov (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IGNITE-5361?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vladimir Ozerov updated IGNITE-5361:
------------------------------------
    Issue Type: Task  (was: Bug)

> SQL: naive handling of fixed length CHAR columns
> ------------------------------------------------
>
>                 Key: IGNITE-5361
>                 URL: https://issues.apache.org/jira/browse/IGNITE-5361
>             Project: Ignite
>          Issue Type: Task
>          Components: sql
>    Affects Versions: 1.7
>            Reporter: Andrey Gura
>            Priority: Major
>              Labels: sql-engine
>
> Use case:
> There is database where primary key has type {{CHAR(N)}} (not {{VARCHAR}}). In this case string that have length less than {{N}} will be spaces padded.
> Data has loaded into Ignite cache using {{CacheJdbcPojoStore}}. As result string field contains trailing spaces. The following SQL query wont retrieve expected value in case when string parameter doesn't contain trailing spaces: 
> {noformat}
> select * from MyTable where id = 'some_value_without_trailing spaces'
> {noformat}
> Moreover, if {{readThrough}} is enabled, and {{cache.get()}} operation will be invoked, and string identifier in key contains the same value without trailing spaces the entry will be loaded from underlying database. As result cache will contain two values with differents keys (one of them with trailing spaces while other without trailing spaces).
> Looks like usability bug.



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)