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* Avoid failures when "EXPLAIN" tries to display a simple-form CASE
expression.
* Fix assignment to an array slice that is before the existing range
of subscripts.
* Avoid unexpected conversion overflow in planner for very distant
date values.
* Fix pg_restore's text output for large objects (BLOBs) when
standard_conforming_strings is on.
* Fix erroneous parsing of tsquery values containing ... &
!(subexpression) | ...
* Fix buffer overrun in "contrib/intarray"'s input function for the
query_int type.
* Fix bug in "contrib/seg"'s GiST picksplit algorithm.
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* Force the default wal_sync_method to be fdatasync on Linux
* Fix assorted bugs in WAL replay logic for GIN indexes
* Fix recovery from base backup when the starting checkpoint WAL
record is not in the same WAL segment as its redo point
* Fix persistent slowdown of autovacuum workers when multiple workers
remain active for a long time
* Add support for detecting register-stack overrun on IA64
* Add a check for stack overflow in copyObject()
* Fix detection of page splits in temporary GiST indexes
* Avoid memory leakage while "ANALYZE"'ing complex index expressions
* Ensure an index that uses a whole-row Var still depends on its
table
* Do not "inline" a SQL function with multiple OUT parameters
* Behave correctly if ORDER BY, LIMIT, FOR UPDATE, or WITH is
attached to the VALUES part of INSERT ... VALUES
* Fix constant-folding of COALESCE() expressions
* Fix postmaster crash when connection acceptance (accept() or one of
the calls made immediately after it) fails, and the postmaster was
compiled with GSSAPI support
* Fix missed unlink of temporary files when log_temp_files is active
* Add print functionality for InhRelation nodes
* Fix incorrect calculation of distance from a point to a horizontal
line segment
* Fix PL/pgSQL's handling of "simple" expressions to not fail in
recursion or error-recovery cases
* Fix PL/Python's handling of set-returning functions
* Fix bug in "contrib/cube"'s GiST picksplit algorithm
* Don't emit "identifier will be truncated" notices in
"contrib/dblink" except when creating new connections
* Fix potential coredump on missing public key in "contrib/pgcrypto"
* Fix memory leak in "contrib/xml2"'s XPath query functions
* Update time zone data files to tzdata release 2010o for DST law
changes in Fiji and Samoa; also historical corrections for Hong
Kong.
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* Add new configuration parameter ssl_renegotiation_limit to control
how often we do session key renegotiation for an SSL connection
* Fix possible deadlock during backend startup
* Fix possible crashes due to not handling errors during relcache
reload cleanly
* Fix possible crash due to use of dangling pointer to a cached plan
* Fix possible crashes when trying to recover from a failure in
subtransaction start
* Fix server memory leak associated with use of savepoints and a
client encoding different from server's encoding
* Fix incorrect WAL data emitted during end-of-recovery cleanup of a
GIST index page split
* Make substring() for bit types treat any negative length as meaning
"all the rest of the string"
The previous coding treated only -1 that way, and would produce an
invalid result value for other negative values, possibly leading to
a crash (CVE-2010-0442).
* Fix integer-to-bit-string conversions to handle the first
fractional byte correctly when the output bit width is wider than
the given integer by something other than a multiple of 8 bits
* Fix some cases of pathologically slow regular expression matching
* Fix assorted crashes in xml processing caused by sloppy memory
management
* Fix bug with trying to update a field of an element of a
composite-type array column
* Fix the STOP WAL LOCATION entry in backup history files to report
the next WAL segment's name when the end location is exactly at a
segment boundary
* Fix some more cases of temporary-file leakage
This corrects a problem introduced in the previous minor release.
One case that failed is when a plpgsql function returning set is
called within another function's exception handler.
* Improve constraint exclusion processing of boolean-variable cases,
in particular make it possible to exclude a partition that has a
"bool_column = false" constraint
* When reading "pg_hba.conf" and related files, do not treat
@something as a file inclusion request if the @ appears inside
quote marks; also, never treat @ by itself as a file inclusion
request
* Prevent infinite loop on some platforms if a directory is named as
an inclusion target in "pg_hba.conf" and related files
* Fix possible infinite loop if SSL_read or SSL_write fails without
setting errno
This is reportedly possible with some Windows versions of openssl.
* Disallow GSSAPI authentication on local connections, since it
requires a hostname to function correctly
* Make ecpg report the proper SQLSTATE if the connection disappears
* Fix psql's numericlocale option to not format strings it shouldn't
in latex and troff output formats
* Make psql return the correct exit status (3) when ON_ERROR_STOP and
--single-transaction are both specified and an error occurs during
the implied "COMMIT"
* Fix plpgsql failure in one case where a composite column is set to NULL
* Fix possible failure when calling PL/Perl functions from PL/PerlU
or vice versa
* Add volatile markings in PL/Python to avoid possible
compiler-specific misbehavior
* Ensure PL/Tcl initializes the Tcl interpreter fully
The only known symptom of this oversight is that the Tcl clock
command misbehaves if using Tcl 8.5 or later.
* Prevent crash in "contrib/dblink" when too many key columns are
specified to a dblink_build_sql_* function
* Allow zero-dimensional arrays in "contrib/ltree" operations
* Fix assorted crashes in "contrib/xml2" caused by sloppy memory
management
* Make building of "contrib/xml2" more robust on Windows
* Fix race condition in Windows signal handling
One known symptom of this bug is that rows in pg_listener could be
dropped under heavy load.
* Update time zone data files to tzdata release 2010e for DST law
changes in Bangladesh, Chile, Fiji, Mexico, Paraguay, Samoa.
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* Prevent error recursion crashes when encoding conversion fails.
* Disallow "CREATE CONVERSION" with the wrong encodings for the
specified conversion function.
* Fix xpath() to not modify the path expression unless necessary, and
to make a saner attempt at it when necessary.
* Fix core dump when to_char() is given format codes that are
inappropriate for the type of the data argument.
* Fix possible failure in text search when C locale is used with a
multi-byte encoding.
* Fix extreme inefficiency in text search parser's handling of an
email-like string containing multiple @ characters.
* Fix planner problem with sub-"SELECT" in the output list of a
larger subquery.
* Fix decompilation of CASE WHEN with an implicit coercion.
* Fix possible misassignment of the owner of a TOAST table's rowtype.
* Change "UNLISTEN" to exit quickly if the current session has never
executed any "LISTEN" command.
* Fix PL/pgSQL to not treat INTO after "INSERT" as an INTO-variables
clause anywhere in the string, not only at the start; in
particular, don't fail for "INSERT INTO" within "CREATE RULE".
* Clean up PL/pgSQL error status variables fully at block exit.
* Retry failed calls to CallNamedPipe() on Windows.
* Add MUST (Mauritius Island Summer Time) to the default list of
known timezone abbreviations.
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changed runtime dependencies now.
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With significant new functionality and performance enhancements, this
release represents a major leap forward for PostgreSQL. This was made
possible by a growing community that has dramatically accelerated the
pace of development. This release adds the following major features:
* Full text search is integrated into the core database system
* Support for the SQL/XML standard, including new operators and an
XML data type
* Enumerated data types (ENUM)
* Arrays of composite types
* Universally Unique Identifier (UUID) data type
* Add control over whether NULLs sort first or last
* Updatable cursors
* Server configuration parameters can now be set on a per-function
basis
* User-defined types can now have type modifiers
* Automatically re-plan cached queries when table definitions change
or statistics are updated
* Numerous improvements in logging and statistics collection
* Support Security Service Provider Interface (SSPI) for
authentication on Windows
* Support multiple concurrent autovacuum processes, and other
autovacuum improvements
* Allow the whole PostgreSQL distribution to be compiled with
Microsoft Visual C++
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