[daisy] [JIRA] Created: (DSY-521) database indepent implementation of Concat() function

Wed Aug 1 15:19:50 CDT 2007

database indepent implementation of Concat() function
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         Key: DSY-521
         URL: http://issues.cocoondev.org//browse/DSY-521
     Project: Daisy
        Type: Improvement
  Components: Repository, Repository - querying and indexing  
    Versions: 2.1    
 Environment: SVN 4286
 Reporter: Andreas Deininger
    Priority: Minor

Currently, the implementation of the Concat() function of daisy's query language depends on the existence of the SQL string function CONCAT(). However, this MySQL-specific SQL-function is implemented differently on other databases, e.g. on PostgreSQL, we have the || operator for string concatenation (string1 || string2 ). Therefore, the Implementation of that function should be made more flexible, the current solution does not allow to easily pass the || operator via the getStringConcatFunction() of the JdbcHelper class.
Affected files: org/outerj/daisy/query/model/functions/ConcatFunction.java, org/outerj/daisy/jdbcutil/JdbcHelper.java

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