Version 6.5.1 (Released July 1999)
Portability fixes for linux_ppc, Irix, alpha, and OpenBSD.
Deprecated QUERY_LIMIT; use SELECT…LIMIT.
Fixed EXPLAIN on inheritance.
Patch added to allow VACUUM on multisegment tables.
Fixed R-Tree optimizer selectivity.
Fixed ACL file descriptor leak.
Avoid disk writes for read-only transactions.
Fix implemented for removal of temp tables if last transaction was aborted.
Fix implemented to prevent too large tuple from being created in plpgsql bug fixes.
Allowed port numbers 32KB–64KB for connections.
Added ^ precedence.
Fixed microseconds in time values.
New linux_m68k port.
Fixed sorting of NULL s in some cases.
Fixed shared library dependencies.
Fixed glitches affecting GROUP BY in subselects.
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