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https://issues.apache.org/jira/browse/DERBY-3676?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rick Hillegas updated DERBY-3676:
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Attachment: statementCacheVTI.sql
Thanks for the new patch, Mark.
I agree that
String sqlText = ps.toString();
is more elegant than
String sqlText ((DerbyPreparedStatement) ps).getFullSQLText();
However, like Dag, I am reluctant to change the meaning of toString().
Technically it's true that we haven't documented anywhere that
PreparedStatement.toString() matches the SQL_TEXT column of the StatementCache
vti. Still, PreparedStatement.toString() has had that meaning for more than a
decade and I have no idea who depends on that fact. (For an example of using
the StatementCache vti, see the attached ij script, statementCacheVTI.sql.)
I think that it's fine to add a new method which has the desired MySQL-like
behavior and document that new method in the DerbyPreparedStatement interface.
Concerning Dag's other comments:
1) Yes, please let us know what getFullSQLText() will return when the parameter
is a stream or Blob/Clob.
2) We will need you to fill out an ICLA. See
http://www.apache.org/licenses/#clas
Thanks,
-Rick
> Make the toString() method of Derby PreparedStatements print out SQL text
> with ? parameters replaced by the values that have been set so far
> --------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: DERBY-3676
> URL: https://issues.apache.org/jira/browse/DERBY-3676
> Project: Derby
> Issue Type: Improvement
> Components: JDBC
> Reporter: Rick Hillegas
> Attachments: humanstringprepared.txt, humanstringprepared.txt,
> humanstringprepared.txt, humanstringprepared.txt, humanstringprepared.txt,
> humanstringprepared.txt, humanstringprepared.txt, ick.txt, ick.txt,
> statementCacheVTI.sql
>
>
> This topic came up in the following email thread on the user list:
> http://www.nabble.com/PreparedStatement.toString%28%29---nice-formatting-td17250811.html#a17250811
> Here's what the thread requests:
> "In mysql, a toString() on a PreparedStatement will do this, eg "select x
> from foo where x.a = ?" will become "select x from foo where x.a = 1" with
> the appropriate setValue() call."
> At first blush, this seems like it might be a simple project for a newcomer.
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