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From "Mamta A. Satoor (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-791) Expose api for printing Abstract Syntax Trees in production (non-debug) servers
Date Tue, 25 Jun 2013 15:10:21 GMT

    [ https://issues.apache.org/jira/browse/DERBY-791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13693116#comment-13693116
] 

Mamta A. Satoor commented on DERBY-791:
---------------------------------------

Rick, can this jira be closed or is there further work to be done? thanks
                
> Expose api for printing Abstract Syntax Trees in production (non-debug) servers
> -------------------------------------------------------------------------------
>
>                 Key: DERBY-791
>                 URL: https://issues.apache.org/jira/browse/DERBY-791
>             Project: Derby
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Rick Hillegas
>         Attachments: ASTGrapher.java, derby-791-01-aa-fromListAndResultColumnList.diff,
derby-791-02-aa-printTargetColumnList.diff, XmlTreeWalker.java, XmlTreeWalker.java, XmlTreeWalker.java,
XmlTreeWalker.java, XmlTreeWalker.java, z.xml
>
>
> Currently you can print Abstract Syntax Trees to derby.log by setting the DumpParseTree
tracepoint at server startup. E.g.:
> java -cp $CLASSPATH -Dderby.debug.true=DumpParseTree -Dderby.stream.error.logSeverityLevel=0
org.apache.derby.tools.ij  z.sql
> This can be a useful debugging tool. However, it only works on debug servers built with
the following flags:
> sanity=true
> debug=true
> We should provide some mechanism for printing these trees in production (non-debug) servers.

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