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Fix temporary memory leak when using non-hashed aggregates (Tom)
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ECPG fixes, including some for Informix compatibility (Michael)
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Fixes for compiling with thread-safety, particularly Solaris (Bruce)
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Fix error in COPY IN termination when using the old network protocol (ljb)
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Several important fixes in pg_autovacuum, including fixes for large tables, unsigned oids, stability, temp tables, and debug mode (Matthew T. O'Connor)
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Fix problem with reading tar-format dumps on NetBSD and BSD/OS (Bruce)
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Several JDBC fixes
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Fix ALTER SEQUENCE RESTART where last_value equals the restart value (Tom)
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Repair failure to recalculate nested sub-selects (Tom)
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Fix problems with non-constant expressions in LIMIT/OFFSET
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Support FULL JOIN with no join clause, such as X FULL JOIN Y ON TRUE (Tom)
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Fix another zero-column table bug (Tom)
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Improve handling of non-qualified identifiers in GROUP BY clauses in sub-selects (Tom)
Select-list aliases within the sub-select will now take precedence over names from outer query levels.
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Do not generate "NATURAL CROSS JOIN" when decompiling rules (Tom)
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Add checks for invalid field length in binary COPY (Tom)
This fixes a difficult-to-exploit security hole.
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Avoid locking conflict between ANALYZE and LISTEN/NOTIFY
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Numerous translation updates (various contributors)
