1. 15 Dec, 2002 1 commit
  2. 13 Dec, 2002 1 commit
  3. 05 Dec, 2002 1 commit
    • Tom Lane's avatar
      Phase 1 of read-only-plans project: cause executor state nodes to point · 1fd0c59e
      Tom Lane authored
      to plan nodes, not vice-versa.  All executor state nodes now inherit from
      struct PlanState.  Copying of plan trees has been simplified by not
      storing a list of SubPlans in Plan nodes (eliminating duplicate links).
      The executor still needs such a list, but it can build it during
      ExecutorStart since it has to scan the plan tree anyway.
      No initdb forced since no stored-on-disk structures changed, but you
      will need a full recompile because of node-numbering changes.
      1fd0c59e
  4. 01 Dec, 2002 1 commit
  5. 04 Sep, 2002 1 commit
  6. 02 Sep, 2002 1 commit
    • Tom Lane's avatar
      Code review for HeapTupleHeader changes. Add version number to page headers · c7a165ad
      Tom Lane authored
      (overlaying low byte of page size) and add HEAP_HASOID bit to t_infomask,
      per earlier discussion.  Simplify scheme for overlaying fields in tuple
      header (no need for cmax to live in more than one place).  Don't try to
      clear infomask status bits in tqual.c --- not safe to do it there.  Don't
      try to force output table of a SELECT INTO to have OIDs, either.  Get rid
      of unnecessarily complex three-state scheme for TupleDesc.tdhasoids, which
      has already caused one recent failure.  Improve documentation.
      c7a165ad
  7. 31 Aug, 2002 1 commit
  8. 30 Aug, 2002 2 commits
  9. 29 Aug, 2002 2 commits
  10. 05 Aug, 2002 1 commit
    • Tom Lane's avatar
      Preliminary code review for anonymous-composite-types patch: fix breakage · 07f9682d
      Tom Lane authored
      of functions returning domain types, update documentation for typtype,
      move get_typtype to lsyscache.c (actually, resurrect the old version),
      add defense against creating pseudo-typed table columns, fix some
      bogus list-parsing in grammar.  Issues remain with respect to alias
      handling and type checking; Joe is on those.
      07f9682d
  11. 04 Aug, 2002 1 commit
    • Bruce Momjian's avatar
      Attached are two patches to implement and document anonymous composite · 9218689b
      Bruce Momjian authored
      types for Table Functions, as previously proposed on HACKERS. Here is a
      brief explanation:
      
      1. Creates a new pg_type typtype: 'p' for pseudo type (currently either
           'b' for base or 'c' for catalog, i.e. a class).
      
      2. Creates new builtin type of typtype='p' named RECORD. This is the
           first of potentially several pseudo types.
      
      3. Modify FROM clause grammer to accept:
           SELECT * FROM my_func() AS m(colname1 type1, colname2 type1, ...)
           where m is the table alias, colname1, etc are the column names, and
           type1, etc are the column types.
      
      4. When typtype == 'p' and the function return type is RECORD, a list
           of column defs is required, and when typtype != 'p', it is
      disallowed.
      
      5. A check was added to ensure that the tupdesc provide via the parser
           and the actual return tupdesc match in number and type of
      attributes.
      
      When creating a function you can do:
           CREATE FUNCTION foo(text) RETURNS setof RECORD ...
      
      When using it you can do:
           SELECT * from foo(sqlstmt) AS (f1 int, f2 text, f3 timestamp)
             or
           SELECT * from foo(sqlstmt) AS f(f1 int, f2 text, f3 timestamp)
             or
           SELECT * from foo(sqlstmt) f(f1 int, f2 text, f3 timestamp)
      
      Included in the patches are adjustments to the regression test sql and
      expected files, and documentation.
      
      p.s.
           This potentially solves (or at least improves) the issue of builtin
           Table Functions. They can be bootstrapped as returning RECORD, and
           we can wrap system views around them with properly specified column
           defs. For example:
      
           CREATE VIEW pg_settings AS
             SELECT s.name, s.setting
             FROM show_all_settings()AS s(name text, setting text);
      
           Then we can also add the UPDATE RULE that I previously posted to
           pg_settings, and have pg_settings act like a virtual table, allowing
           settings to be queried and set.
      
      
      Joe Conway
      9218689b
  12. 20 Jul, 2002 1 commit
    • Bruce Momjian's avatar
      oid is needed, it is added at the end of the struct (after the null · b0f5086e
      Bruce Momjian authored
      bitmap, if present).
      
      Per Tom Lane's suggestion the information whether a tuple has an oid
      or not is carried in the tuple descriptor.  For debugging reasons
      tdhasoid is of type char, not bool.  There are predefined values for
      WITHOID, WITHOUTOID and UNDEFOID.
      
      This patch has been generated against a cvs snapshot from last week
      and I don't expect it to apply cleanly to current sources.  While I
      post it here for public review, I'm working on a new version against a
      current snapshot.  (There's been heavy activity recently; hope to
      catch up some day ...)
      
      This is a long patch;  if it is too hard to swallow, I can provide it
      in smaller pieces:
      
      Part 1:  Accessor macros
      Part 2:  tdhasoid in TupDesc
      Part 3:  Regression test
      Part 4:  Parameter withoid to heap_addheader
      Part 5:  Eliminate t_oid from HeapTupleHeader
      
      Part 2 is the most hairy part because of changes in the executor and
      even in the parser;  the other parts are straightforward.
      
      Up to part 4 the patched postmaster stays binary compatible to
      databases created with an unpatched version.  Part 5 is small (100
      lines) and finally breaks compatibility.
      
      Manfred Koizar
      b0f5086e
  13. 20 Jun, 2002 1 commit
  14. 12 May, 2002 1 commit