[teiid-issues] [JBoss JIRA] (TEIID-4995) Investigate use of org.apache.poi.ss.usermodel.DataFormatter in Excel translator

[Steven Hawkins (JIRA)]

    [ https://issues.jboss.org/browse/TEIID-4995?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13436934#comment-13436934 ] 

Steven Hawkins commented on TEIID-4995:
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There needs to be some additional considerations here.  The current functionality is consistent with the data model.  Making the functionality consistent with the formatting can be more challenging.  If we're not just targeting default formatting, then there's a potential that the actual sheet formatting changes for arbitrary cell ranges, which would be hard to capture in the metadata.  Can we clarify how we expect to capture the formatting details - a single execution flag "useDefaultFormatting", at import (at a column level or down to cell ranges), etc.?

> Investigate use of org.apache.poi.ss.usermodel.DataFormatter in Excel translator
> --------------------------------------------------------------------------------
>
>                 Key: TEIID-4995
>                 URL: https://issues.jboss.org/browse/TEIID-4995
>             Project: Teiid
>          Issue Type: Enhancement
>          Components: Misc. Connectors
>    Affects Versions: 8.7.12.6_2, 8.12.11.6_3, 9.2.4
>         Environment: Excel translator
> Integer values in string columns
>            Reporter: Marc Shirley
>            Assignee: Steven Hawkins
>
> For integer values in a string column, values are displayed as a decimal value (for example, a value "5" is displayed as "5.0").  It looks like org.apache.poi.ss.usermodel.DataFormatter [1] by default attempts to format values in the same manner as Excel would display it [2], and would result in the integer value "5" being displayed as "5".  In the case of string columns, this would avoid the user needing to modify source data to compensate as indicated as workarounds in TEIID-3947.
> [1] https://poi.apache.org/apidocs/org/apache/poi/ss/usermodel/DataFormatter.html
> [2] The default number format will mimic the Excel General format: "#" for whole numbers and "#.##########" for decimal numbers.



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