postgresql-8.4 8.4.6-1~hardy1 source package in Ubuntu

Changelog

postgresql-8.4 (8.4.6-1~hardy1) hardy-backports; urgency=low

  * Automated backport upload; no source changes.

postgresql-8.4 (8.4.6-1) unstable; urgency=low

  * New upstream bug fix release:
    - Force the default wal_sync_method to be fdatasync on Linux.
      The default on Linux has actually been fdatasync for many years,
      but recent kernel changes caused PostgreSQL to choose open_datasync
      instead. This choice did not result in any performance improvement,
      and caused outright failures on certain filesystems, notably ext4
      with the data=journal mount option.
    - Fix assorted bugs in WAL replay logic for GIN indexes.
      This could result in "bad buffer id: 0" failures or corruption of
      index contents during replication.
    - 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.
      The effective vacuum_cost_limit for an autovacuum worker could drop
      to nearly zero if it processed enough tables, causing it to run
      extremely slowly.
    - Add support for detecting register-stack overrun on IA64.
      The IA64 architecture has two hardware stacks. Full prevention of
      stack-overrun failures requires checking both.
    - Add a check for stack overflow in copyObject().
      Certain code paths could crash due to stack overflow given a
      sufficiently complex query.
    - Fix detection of page splits in temporary GiST indexes.
      It is possible to have a "concurrent" page split in a temporary
      index, if for example there is an open cursor scanning the index
      when an insertion is done. GiST failed to detect this case and
      hence could deliver wrong results when execution of the cursor
      continued.
    - Fix error checking during early connection processing.
      The check for too many child processes was skipped in some cases,
      possibly leading to postmaster crash when attempting to add the new
      child process to fixed-size arrays.
    - Improve efficiency of window functions.
      Certain cases where a large number of tuples needed to be read in
      advance, but work_mem was large enough to allow them all to be held
      in memory, were unexpectedly slow. percent_rank(), cume_dist() and
      ntile() in particular were subject to this problem.
    - Avoid memory leakage while "ANALYZE"'ing complex index expressions.
    - Ensure an index that uses a whole-row Var still depends on its
      table.
      An index declared like create index i on t (foo(t.-)) would not
      automatically get dropped when its table was dropped.
    - Do not "inline" a SQL function with multiple OUT parameters.
      This avoids a possible crash due to loss of information about the
      expected result rowtype.
    - 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.
      The planner would sometimes attempt to evaluate sub-expressions
      that in fact could never be reached, possibly leading to unexpected
      errors.
    - 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.
      If an error occurred while attempting to emit the log message, the
      unlink was not done, resulting in accumulation of temp files.
    - Add print functionality for InhRelation nodes.
      This avoids a failure when debug_print_parse is enabled and certain
      types of query are executed.
    - Fix incorrect calculation of distance from a point to a horizontal
      line segment.
      This bug affected several different geometric distance-measurement
      operators.
    - Fix incorrect calculation of transaction status in ecpg.
    - 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.
      Attempts to call SPI functions within the iterator generating a set
      result would fail.
    - Fix bug in "contrib/cube"'s GiST picksplit algorithm.
      This could result in considerable inefficiency, though not actually
      incorrect answers, in a GiST index on a cube column. If you have
      such an index, consider "REINDEX"ing it after installing this
      update.
    - 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.

postgresql-8.4 (8.4.5-2) unstable; urgency=low

  * debian/control: Build against libedit instead of libreadline. We can't
    simultaneously link against readline (GPL) and libssl (incompatible with
    GPL). (Closes: #603598)

postgresql-8.4 (8.4.5-1) unstable; urgency=medium

  * Urgency medium, since this fixes a security bug (but also a lot of other
    bugs, it's not a pinpointed patch).
  * New upstream security/bug fix update:
    - Use a separate interpreter for each calling SQL userid in PL/Perl
      and PL/Tcl.
      This change prevents security problems that can be caused by
      subverting Perl or Tcl code that will be executed later in the same
      session under another SQL user identity (for example, within a
      SECURITY DEFINER function). Most scripting languages offer numerous
      ways that that might be done, such as redefining standard functions
      or operators called by the target function. Without this change,
      any SQL user with Perl or Tcl language usage rights can do
      essentially anything with the SQL privileges of the target
      function's owner.
      The cost of this change is that intentional communication among
      Perl and Tcl functions becomes more difficult. To provide an escape
      hatch, PL/PerlU and PL/TclU functions continue to use only one
      interpreter per session. This is not considered a security issue
      since all such functions execute at the trust level of a database
      superuser already.
      It is likely that third-party procedural languages that claim to
      offer trusted execution have similar security issues. We advise
      contacting the authors of any PL you are depending on for
      security-critical purposes.
      Our thanks to Tim Bunce for pointing out this issue
      (CVE-2010-3433).
    - Prevent possible crashes in pg_get_expr() by disallowing it from
      being called with an argument that is not one of the system catalog
      columns it's intended to be used with.
    - Fix incorrect placement of placeholder evaluation.
      This bug could result in query outputs being non-null when they
      should be null, in cases where the inner side of an outer join is a
      sub-select with non-strict expressions in its output list.
    - Fix possible duplicate scans of UNION ALL member relations.
    - Fix "cannot handle unplanned sub-select" error.
      This occurred when a sub-select contains a join alias reference
      that expands into an expression containing another sub-select.
    - Fix mishandling of whole-row Vars that reference a view or
      sub-select and appear within a nested sub-select.
    - Fix mishandling of cross-type IN comparisons.
      This could result in failures if the planner tried to implement an
      IN join with a sort-then-unique-then-plain-join plan.
    - Fix computation of "ANALYZE" statistics for tsvector columns.
      The original coding could produce incorrect statistics, leading to
      poor plan choices later.
    - Improve planner's estimate of memory used by array_agg(),
      string_agg(), and similar aggregate functions.
      The previous drastic underestimate could lead to out-of-memory
      failures due to inappropriate choice of a hash-aggregation plan.
    - Fix failure to mark cached plans as transient.
      If a plan is prepared while "CREATE INDEX CONCURRENTLY" is in
      progress for one of the referenced tables, it is supposed to be
      re-planned once the index is ready for use. This was not happening
      reliably.
    - Reduce PANIC to ERROR in some occasionally-reported btree failure
      cases, and provide additional detail in the resulting error
      messages.
      This should improve the system's robustness with corrupted indexes.
    - Fix incorrect search logic for partial-match queries with GIN
      indexes.
      Cases involving AND/OR combination of several GIN index conditions
      didn't always give the right answer, and were sometimes much slower
      than necessary.
    - Prevent show_session_authorization() from crashing within
      autovacuum processes.
    - Defend against functions returning setof record where not all the
      returned rows are actually of the same rowtype.
    - Fix possible corruption of pending trigger event lists during
      subtransaction rollback.
      This could lead to a crash or incorrect firing of triggers.
    - Fix possible failure when hashing a pass-by-reference function
      result.
    - Improve merge join's handling of NULLs in the join columns.
      A merge join can now stop entirely upon reaching the first NULL, if
      the sort order is such that NULLs sort high.
    - Take care to fsync the contents of lockfiles (both "postmaster.pid"
      and the socket lockfile) while writing them.
      This omission could result in corrupted lockfile contents if the
      machine crashes shortly after postmaster start. That could in turn
      prevent subsequent attempts to start the postmaster from
      succeeding, until the lockfile is manually removed.
    - Avoid recursion while assigning XIDs to heavily-nested
      subtransactions.
      The original coding could result in a crash if there was limited
      stack space.
    - Avoid holding open old WAL segments in the walwriter process.
      The previous coding would prevent removal of no-longer-needed
      segments.
    - Fix log_line_prefix's %i escape, which could produce junk early in
      backend startup.
    - Prevent misinterpretation of partially-specified relation options
      for TOAST tables.
      In particular, fillfactor would be read as zero if any other
      reloption had been set for the table, leading to serious bloat.
    - Fix inheritance count tracking in "ALTER TABLE ... ADD CONSTRAINT"
    - Fix possible data corruption in "ALTER TABLE ... SET TABLESPACE"
      when archiving is enabled.
    - Allow "CREATE DATABASE" and "ALTER DATABASE ... SET TABLESPACE" to
      be interrupted by query-cancel.
    - Improve "CREATE INDEX"'s checking of whether proposed index
      expressions are immutable.
    - Fix "REASSIGN OWNED" to handle operator classes and families.
    - Fix possible core dump when comparing two empty tsquery values.
    - Fix LIKE's handling of patterns containing % followed by _.
      We've fixed this before, but there were still some
      incorrectly-handled cases.
    - Re-allow input of Julian dates prior to 0001-01-01 AD.
      Input such as 'J100000'::date worked before 8.4, but was
      unintentionally broken by added error-checking.
    - Fix PL/pgSQL to throw an error, not crash, if a cursor is closed
      within a FOR loop that is iterating over that cursor.
    - In PL/Python, defend against null pointer results from
      PyCObject_AsVoidPtr and PyCObject_FromVoidPtr.
    - In libpq, fix full SSL certificate verification for the case where
      both host and hostaddr are specified.
    - Make psql recognize "DISCARD ALL" as a command that should not be
      encased in a transaction block in autocommit-off mode.
    - Fix some issues in pg_dump's handling of SQL/MED objects.
      Notably, pg_dump would always fail if run by a non-superuser, which
      was not intended.
    - Improve pg_dump and pg_restore's handling of non-seekable archive
      files.
      This is important for proper functioning of parallel restore.
    - Improve parallel pg_restore's ability to cope with selective
      restore (-L option).
      The original code tended to fail if the -L file commanded a
      non-default restore ordering.
    - Fix ecpg to process data from RETURNING clauses correctly.
    - Fix some memory leaks in ecpg.
    - Improve "contrib/dblink"'s handling of tables containing dropped
      columns.
    - Fix connection leak after "duplicate connection name" errors in
      "contrib/dblink".
    - Fix "contrib/dblink" to handle connection names longer than 62
      bytes correctly.
    - Add hstore(text, text) function to "contrib/hstore".
      This function is the recommended substitute for the now-deprecated
      => operator. It was back-patched so that future-proofed code can be
      used with older server versions. Note that the patch will be
      effective only after "contrib/hstore" is installed or reinstalled
      in a particular database. Users might prefer to execute the "CREATE
      FUNCTION" command by hand, instead.
    - Update build infrastructure and documentation to reflect the source
      code repository's move from CVS to Git.
  * debian/postgresql-8.4.preinst: Add missing debhelper token.
  * debian/control: Bump Standards-Version to 3.9.1 (no changes necessary).

postgresql-8.4 (8.4.4-2) unstable; urgency=low

  * Migrate to a common init script for all server versions, to avoid
    providing the "postgresql" service in multiple packages (which causes
    insserv to complain bitterly):
    - Drop debian/postgresql-8.4.init.
    - debian/control: Bump dependency to postgresql-common to ensure we have a
      common /etc/init.d/postgresql init script.
    - debian/postgresql-8.4.preinst: Remove/rename our init script on upgrade.
    - debian/postgresql-8.4.prerm: Call stop_version on upgrade.
    - debian/rules: Drop dh_installinit arguments.
    - (Closes: #585890)
 -- Martin Pitt <email address hidden>   Mon, 03 Jan 2011 08:57:10 +0000