1. 01 Aug, 2008 4 commits
  2. 31 Jul, 2008 3 commits
    • Tom Lane's avatar
      Fix parser so that we don't modify the user-written ORDER BY list in order · 63247bec
      Tom Lane authored
      to represent DISTINCT or DISTINCT ON.  This gets rid of a longstanding
      annoyance that a view or rule using SELECT DISTINCT will be dumped out
      with an overspecified ORDER BY list, and is one small step along the way
      to decoupling DISTINCT and ORDER BY enough so that hash-based implementation
      of DISTINCT will be possible.  In passing, improve transformDistinctClause
      so that it doesn't reject duplicate DISTINCT ON items, as was reported by
      Steve Midgley a couple weeks ago.
      63247bec
    • Bruce Momjian's avatar
      Add URL to: · b1fb3b2a
      Bruce Momjian authored
      * Consider decreasing the I/O caused by updating tuple hint bits
      
      >   http://archives.postgresql.org/pgsql-patches/2008-07/msg00199.php
      b1fb3b2a
    • Tom Lane's avatar
      Require superuser privilege to create base types (but not composites, enums, · 7bd7b200
      Tom Lane authored
      or domains).  This was already effectively required because you had to own
      the I/O functions, and the I/O functions pretty much have to be written in
      C since we don't let PL functions take or return cstring.  But given the
      possible security consequences of a malicious type definition, it seems
      prudent to enforce superuser requirement directly.  Per recent discussion.
      7bd7b200
  3. 30 Jul, 2008 4 commits
    • Tom Lane's avatar
      Allow I/O conversion casts to be applied to or from any type that is a member · c8572986
      Tom Lane authored
      of the STRING type category, thereby opening up the mechanism for user-defined
      types.  This is mainly for the benefit of citext, though; there aren't likely
      to be a lot of types that are all general-purpose character strings.
      Per discussion with David Wheeler.
      c8572986
    • Tom Lane's avatar
      Flip the default typispreferred setting from true to false. This affects · 7df49cef
      Tom Lane authored
      only type categories in which the previous coding made *every* type
      preferred; so there is no change in effective behavior, because the function
      resolution rules only do something different when faced with a choice
      between preferred and non-preferred types in the same category.  It just
      seems safer and less surprising to have CREATE TYPE default to non-preferred
      status ...
      7df49cef
    • Tom Lane's avatar
      Adjust citext to make use of the new ability to declare its type category: · 42be2c79
      Tom Lane authored
      by putting it into the standard string category, we cause casts from citext
      to text to be recognized as "preferred" casts.  This eliminates the need
      for creation of alias functions and operators that only serve to prevent
      ambiguous-function errors; get rid of the ones that were in the original
      commit.
      42be2c79
    • Tom Lane's avatar
      Replace the hard-wired type knowledge in TypeCategory() and IsPreferredType() · bac3e836
      Tom Lane authored
      with system catalog lookups, as was foreseen to be necessary almost since
      their creation.  Instead put the information into two new pg_type columns,
      typcategory and typispreferred.  Add support for setting these when
      creating a user-defined base type.
      
      The category column is just a "char" (i.e. a poor man's enum), allowing
      a crude form of user extensibility of the category list: just use an
      otherwise-unused character.  This seems sufficient for foreseen uses,
      but we could upgrade to having an actual category catalog someday, if
      there proves to be a huge demand for custom type categories.
      
      In this patch I have attempted to hew exactly to the behavior of the
      previous hardwired logic, except for introducing new type categories for
      arrays, composites, and enums.  In particular the default preferred state
      for user-defined types remains TRUE.  That seems worth revisiting, but it
      should be done as a separate patch from introducing the infrastructure.
      Likewise, any adjustment of the standard set of categories should be done
      separately.
      bac3e836
  4. 29 Jul, 2008 3 commits
  5. 26 Jul, 2008 1 commit
    • Tom Lane's avatar
      As noted by Andrew Gierth, there's really no need any more to force a junk · a77eaa6a
      Tom Lane authored
      filter to be used when INSERT or SELECT INTO has a plan that returns raw
      disk tuples.  The virtual-tuple-slot optimizations that were put in place
      awhile ago mean that ExecInsert has to do ExecMaterializeSlot, and that
      already copies the tuple if it's raw (and does so more efficiently than
      a junk filter, too).  So get rid of that logic.  This in turn means that
      we can throw away ExecMayReturnRawTuples, which wasn't used for any other
      purpose, and was always a kluge anyway.
      
      In passing, move a couple of SELECT-INTO-specific fields out of EState
      and into the private state of the SELECT INTO DestReceiver, as was foreseen
      in an old comment there.  Also make intorel_receive use ExecMaterializeSlot
      not ExecCopySlotTuple, for consistency with ExecInsert and to possibly save
      a tuple copy step in some cases.
      a77eaa6a
  6. 24 Jul, 2008 2 commits
  7. 23 Jul, 2008 3 commits
  8. 22 Jul, 2008 1 commit
  9. 21 Jul, 2008 3 commits
  10. 20 Jul, 2008 2 commits
  11. 19 Jul, 2008 1 commit
    • Tom Lane's avatar
      Avoid substituting NAMEDATALEN, FLOAT4PASSBYVAL, and FLOAT8PASSBYVAL into · 4b362c66
      Tom Lane authored
      the postgres.bki file during build, because we want that file to be entirely
      platform- and configuration-independent; else it can't safely be put into
      /usr/share on multiarch machines.  We can do the substitution during initdb,
      instead.  FLOAT4PASSBYVAL and FLOAT8PASSBYVAL are new breakage as of 8.4,
      while the NAMEDATALEN hazard has been there all along but I guess no one
      tripped over it.  Noticed while trying to build "universal" OS X binaries.
      4b362c66
  12. 18 Jul, 2008 8 commits
  13. 17 Jul, 2008 4 commits
  14. 16 Jul, 2008 1 commit