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Понимающим людям без перевода понятнее
Changes since 7.4.2 is quite small, they are included below:
* Fix temporary memory leak when using non-hashed aggregates (Tom)
* ECPG fixes, including some for Informix compatibility (Michael)
* Fixes for compiling with thread-safety, particularly Solaris (Bruce)
* Fix error in COPY IN termination when using the old network protocol (ljb)
* Several important fixes in pg_autovacuum (Matthew T. O'Connor)
* Fix problem with reading tar-format dumps on NetBSD and BSD/OS (Bruce)
* Several JDBC fixes
* Fix ALTER SEQUENCE RESTART where last_value equals the restart value (Tom)
* Repair failure to recalculate nested sub-selects (Tom)
* Fix problems with non-constant expressions in LIMIT/OFFSET
* Support FULL JOIN with no join clause, such as X FULL JOIN Y ON TRUE (Tom)
* Fix another zero-column table bug (Tom)
* Improve handling of non-qualified identifiers in GROUP BY clauses in sub-selects (Tom)
* Do not generate "NATURAL CROSS JOIN" when decompiling rules (Tom)
* Add checks for invalid field length in binary COPY (Tom)
* Avoid locking conflict between ANALYZE and LISTEN/NOTIFY
* Numerous translation updates (various contributors)
