> > enable the :bash_math opcodes.  Currently plperl.c only
> > enables the :default opcodes.  This leave out about five of six
> > math functions including sqrt().

Travis Bauer

        - Applied patch submitted by John Schutz <schutz@austin.rr.com> that
          fixed a bug with ANT's SQL functions (not needed for building but nice
          to have fixed).

initdb time.  A few copy-editing cleanups, too.

/*
 * Standard __asm__ format:
 *
 *  __asm__(
 *          "command;"
 *          "command;"
 *          "command;"
 *      :   "=r"(_res)          return value, in register
 *      :   "r"(lock)           argument, 'lock pointer', in register
 *      :   "r0");              inline code uses this register
 */

commit yet.

        - Added new error message into errors.properties "postgresql.notsensitive"
          This is used by jdbc2.ResultSet when a method is called that should
          fetch the current value of a row from the database refreshRow() for
          example.
        - These methods no longer throw the not implemented but the new noupdate
          error. This is in preparation for the Updateable ResultSet support
          which will overide these methods by extending the existing class to
          implement that functionality, but needed to show something other than
          notimplemented:
            moveToCurrentRow()
            moveToInsertRow()
            rowDeleted()
            rowInserted()
            all update*() methods, except those that took the column as a String
            as they were already implemented to convert the String to an int.
        - getFetchDirection() and setFetchDirection() now throws
          "postgresql.notimp" as we only support one direction.
          The CursorResultSet will overide this when its implemented.
        - Created a new class under jdbc2 UpdateableResultSet which extends
          ResultSet and overides the relevent update methods.
          This allows us to implement them easily at a later date.
        - In jdbc2.Connection, the following methods are now implemented:
            createStatement(type,concurrency);
            getTypeMap();
            setTypeMap(Map);
        - The JDBC2 type mapping scheme almost complete, just needs SQLInput &
          SQLOutput to be implemented.
        - Removed some Statement methods that somehow appeared in Connection.
        - In jdbc2.Statement()
            getResultSetConcurrency()
            getResultSetType()
            setResultSetConcurrency()
            setResultSetType()
        - Finally removed the old 6.5.x driver.

        - These methods in org.postgresql.jdbc2.ResultSet are now implemented:
            getBigDecimal(int) ie: without a scale (why did this get missed?)
            getBlob(int)
            getCharacterStream(int)
            getConcurrency()
            getDate(int,Calendar)
            getFetchDirection()
            getFetchSize()
            getTime(int,Calendar)
            getTimestamp(int,Calendar)
            getType()
          NB: Where int represents the column name, the associated version
              taking a String were already implemented by calling the int
              version.
        - These methods no longer throw the not implemented but the new noupdate
          error. This is in preparation for the Updateable ResultSet support
          which will overide these methods by extending the existing class to
          implement that functionality, but needed to show something other than
          notimplemented:
            cancelRowUpdates()
            deleteRow()
        - Added new error message into errors.properties "postgresql.noupdate"
          This is used by jdbc2.ResultSet when an update method is called and
          the ResultSet is not updateable. A new method notUpdateable() has been
          added to that class to throw this exception, keeping the binary size
          down.
        - Added new error message into errors.properties "postgresql.psqlnotimp"
          This is used instead of unimplemented when it's a feature in the
          backend that is preventing this method from being implemented.
        - Removed getKeysetSize() as its not part of the ResultSet API

Thu Jan 18 09:46:00 GMT 2001 peter@retep.org.uk
        - Applied modified patch from Richard Bullington-McGuire
          <rbulling@microstate.com>. I had to modify it as some of the code
          patched now exists in different classes, and some of it actually
          patched obsolete code.

Wed Jan 17 10:19:00 GMT 2001 peter@retep.org.uk
        - Updated Implementation to include both ANT & JBuilder
        - Updated README to reflect the changes since 7.0
	- Created jdbc.jpr file which allows JBuilder to be used to edit the
          source. JBuilder _CAN_NOT_ be used to compile. You must use ANT for
          that. It's only to allow JBuilders syntax checking to improve the
          drivers source. Refer to Implementation for more details

 mixed-signs. Previous effort left way too many minus signs, and was at
 least as broken as the one before that :(
Clean up "ISO-style" time interval representation to omit zero fields if
 there is at least one non-zero field. Supress some leading plus signs
 when not necessary for clarity.
Replace every #ifdef __CYGWIN__ block with a cleaner TIMEZONE_GLOBAL macro
 defined in datetime.h.

try to push restrictions on the view down into the view subquery,
so that they can become indexscan quals or what-have-you rather than
being applied at the top level of the subquery.  7.0 and before were
able to do this, though in a much klugier way, and I'd hate to have
anyone complaining that 7.1 is stupider than 7.0 ...

the tuple is already uodated. (If LockClassinfoForUpdate() is
thought to be useful).

using POSIX semaphores more robust on Darwin 1.2/Mac OS X
Public Beta.  this is for the version of 7.1 available
via anon cvs as of Jan 14 2001 14:00 PST.

since the semaphores and shared memory created by this
emulator are shared with the backends via fork(), their
persistent names are not necessary.  removing their
names with shm_unlink() and sem_unlink() after creation
obviates the need for any "ipcclean" function.  further,
without these changes, the shared memory (and, therefore,
the semaphores) will not be re-initialized/re-created after
the first execution of the postmaster, until reboot
or until some (non-existent) ipcclean function is executed.

this patch does the following:

   1) if the shared memory segment "SysV_Sem_Info" already
      existed, it is cleaned up.  it shouldn't be there anyways.

   2) the real indicator for whether the shared memory/semaphore
      emulator has been initialized is if "SemInfo" has been
      initialized.  the shared memory and semaphores must be
      initialized regardless of whether there was a garbage shared
      memory segment lying around.

   3) the shared memory segment "SysV_Sem_Info" is created with "O_EXCL"
      to catch the case where two postmasters might be starting
      simultaneously, so they don't both end up with the same shared
      memory (one will fail).  note that this can't be done with the
      semaphores because Darwin 1.2 has a bug where attempting to
      open an existing semaphore with "O_EXCL" set will ruin the
      semaphore until the next reboot.

   4) the shared memory segment "SysV_Sem_Info" is unlinked after
      it is created.  it will then exist without a name until the
      postmaster and all backend children exit.
   5) all semaphores are unlinked after they are created.  they'll
      then exist without names until the postmaster and all backend
      children exit.

-michael thornburgh, zenomt@armory.com

 Not sure why some were this way, and others were already correct, but it
 seems to have been like this for several years.
This caused problems on a few damaged platforms like AIX and IRIX which do
 not support DST calculations for years before 1970.
Thanks to Andreas Zeugswetter <ZeugswetterA@wien.spardat.at> for finding
 the problem.