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From: momjian(at)postgresql(dot)org
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql/src/interfaces/jdbc/org/postgresql jdbc1 ...
Date: 2001-09-29 03:08:02
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Lists: pgsql-committers
CVSROOT:	/cvsroot
Module name:	pgsql
Changes by:	momjian(at)postgresql(dot)org	01/09/28 23:08:01

Modified files:

Log message:
	Per the recent discussion there's been some code changes in JDBC's
	DatabaseMetaData.getColumn(). I proposed a patch that would change the
	number of queries to find out all columns in a table from 2 * N + 1 to 1 (N
	being the number of columns reported) by using some outer joins. I also
	fixed the fact that getColumns() only returned columns that had a default
	defined. OTOH, I did not use to change the code required for obtaining a
	column's remarks (by using col_description() for 7.2  and requested by Tom
	Finally, I have found a way to get all the column details in a single query
	*and* use col_description() for 7.2 servers. A patch is attached. It
	overrules Ren? Pijlman's fix for this that was committed just today, but
	still used N + 1 queries (sorry Ren? ;-) )
	I also fixed the return values for TABLE_CAT and TABLE_SCHEM from "" to
	null, to be more standard compliant (and requested in Ren?'s mail found at
	As always, the JDBC1 version has not been tested as I have no JDK 1.1
	Jeroen van Vianen

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