pgsql/src/interfaces/jdbc/org/postgresql jdbc1 ...

CVSROOT:    /cvsroot
Module name:    pgsql
Changes by:    momjian@postgresql.org    01/09/28 23:08:01

Modified files:
    src/interfaces/jdbc/org/postgresql/jdbc1: DatabaseMetaData.java
    src/interfaces/jdbc/org/postgresql/jdbc2: DatabaseMetaData.java

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
    Lane).

    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
    http://fts.postgresql.org/db/mw/msg.html?mid=1034253).

    As always, the JDBC1 version has not been tested as I have no JDK 1.1

    Jeroen van Vianen