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Posted to dev@metamodel.apache.org by "Kasper Sørensen (JIRA)" <ji...@apache.org> on 2015/10/03 22:03:26 UTC

[jira] [Created] (METAMODEL-192) Basic type-conversion (scalar) functions TO_NUMBER, TO_STRING, TO_DATE and TO_BOOLEAN

Kasper Sørensen created METAMODEL-192:
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             Summary: Basic type-conversion (scalar) functions TO_NUMBER, TO_STRING, TO_DATE and TO_BOOLEAN
                 Key: METAMODEL-192
                 URL: https://issues.apache.org/jira/browse/METAMODEL-192
             Project: Apache MetaModel
          Issue Type: Improvement
            Reporter: Kasper Sørensen
            Assignee: Kasper Sørensen


With the addition of scalar functions, we should have a basic set of built-in functions.

This issue represents the need to have basic type-conversion functions for converting values into a new data type. I propose to add 4 built-in functions for that:

TO_STRING
TO_NUMBER
TO_DATE
TO_BOOLEAN

When possible this conversion should obviously be done by the backing database. But initially we should also cover all data context implementations by having a client-side application of it.



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