DRDAResultSet.setResultSet creates a new int array to hold type information on
every execution.
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Key: DERBY-2975
URL: https://issues.apache.org/jira/browse/DERBY-2975
Project: Derby
Issue Type: Improvement
Components: Network Server, Newcomer, Performance
Reporter: Daniel John Debrunner
Priority: Minor
Tracing the code it seems that if a statement is prepared and executed multiple
times that new type information stored in DRDAResultSet is created and set
every execution.
This wastes cpu cycles as the type information can be determined once at
prepare time (I assume) and stored in DRDAPreparedStatement.
It's a little unclear to me the code path for setting the type information,
seems to happen as a side effect of writing a SQLDTAGRP which seems a weird
place to do it.
(but then again I have no idea what a SQLDTAGRP is, all these DRDA "names"
remind me of a Young Ones episode :-)
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