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https://issues.apache.org/jira/browse/MAPREDUCE-6246?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ramtin updated MAPREDUCE-6246:
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Description:
In DBOutputFormat class there is constructQuery method that generates "INSERT
INTO" statement with semicolon(";") at the end.
Semicolon is ANSI SQL-92 standard character for a statement terminator but this
feature is disabled(OFF) as a default settings in IBM DB2.
Although by using -t we can turn it ON for db2.
(http://www-01.ibm.com/support/knowledgecenter/SSEPGG_9.7.0/com.ibm.db2.luw.admin.cmd.doc/doc/r0010410.html?cp=SSEPGG_9.7.0%2F3-6-2-0-2).
But there are some products that already built on top of this default setting
(OFF) so by turning ON this feature make them error prone.
was:
In DBOutputFormat class there is constructQuery method that generates "INSERT
INTO" statement with semicolon(";") at the end.
Semicolon is ANSI SQL-92 standard character for a statement terminator but this
feature is disabled(OFF) as a default settings in IBM DB2.
Although by using -t we can turn it ON for db2.
(http://www-01.ibm.com/support/knowledgecenter/SSEPGG_9.7.0/com.ibm.db2.luw.admin.cmd.doc/doc/r0010410.html?cp=SSEPGG_9.7.0%2F3-6-2-0-2).
But there are some products that already built on top of this default setting
(OFF) so by turning ON this feature make them error prone.
I changed the current DBOutputFormat class by checking the product name from
connection object to see if it is DB2 then generates "INSERT INTO" command
without semicolon(";").
This technique is already used in DBInputFormat class for generating different
"SELECT" statements for Oracle and MySQL databases.
> DBOutputFormat.java appending extra semicolon to query which is incompatible
> with DB2
> -------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-6246
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6246
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv1, mrv2
> Affects Versions: 2.4.1
> Environment: OS: RHEL 5.x, RHEL 6.x, SLES 11.x
> Platform: xSeries, pSeries
> Browser: Firefox, IE
> Security Settings: No Security, Flat file, LDAP, PAM
> File System: HDFS, GPFS FPO
> Reporter: ramtin
> Assignee: ramtin
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> In DBOutputFormat class there is constructQuery method that generates "INSERT
> INTO" statement with semicolon(";") at the end.
> Semicolon is ANSI SQL-92 standard character for a statement terminator but
> this feature is disabled(OFF) as a default settings in IBM DB2.
> Although by using -t we can turn it ON for db2.
> (http://www-01.ibm.com/support/knowledgecenter/SSEPGG_9.7.0/com.ibm.db2.luw.admin.cmd.doc/doc/r0010410.html?cp=SSEPGG_9.7.0%2F3-6-2-0-2).
> But there are some products that already built on top of this default
> setting (OFF) so by turning ON this feature make them error prone.
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