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  1. Sep 07, 2001
    • Bruce Momjian's avatar
      Here is my much-promised patch to let people add UNIQUE constraints after · bd9b3280
      Bruce Momjian authored
      table creation time.  Big deal you say - but this patch is the basis of the
      next thing which is adding PRIMARY KEYs after table creation time.  (Which
      is currently impossible without twiddling catalogs)
      
      Rundown
      -------
      
      * I have made the makeObjectName function of analyze.c non-static, and
      exported it in analyze.h
      
      * I have included analyze.h and defrem.h into command.c, to support
      makingObjectNames and creating indices
      
      * I removed the 'case CONSTR_PRIMARY' clause so that it properly fails and
      says you can't add primary keys, rather than just doing nothing and
      reporting nothing!!!
      
      * I have modified the docs.
      
      Algorithm
      ---------
      
      * If name specified is null, search for a new valid constraint name.  I'm
      not sure if I should "lock" my generated name somehow tho - should I open
      the relation before doing this step?
      
      * Open relation in access exclusive mode
      
      * Check that the constraint does not already exist
      
      * Define the new index
      
      * Warn if they're doubling up on an existing index
      
      Christopher Kings-Lynne
      bd9b3280
  2. Sep 03, 2001
  3. May 30, 2001
  4. May 09, 2001
  5. May 07, 2001
    • Tom Lane's avatar
      Rewrite of planner statistics-gathering code. ANALYZE is now available as · f905d65e
      Tom Lane authored
      a separate statement (though it can still be invoked as part of VACUUM, too).
      pg_statistic redesigned to be more flexible about what statistics are
      stored.  ANALYZE now collects a list of several of the most common values,
      not just one, plus a histogram (not just the min and max values).  Random
      sampling is used to make the process reasonably fast even on very large
      tables.  The number of values and histogram bins collected is now
      user-settable via an ALTER TABLE command.
      
      There is more still to do; the new stats are not being used everywhere
      they could be in the planner.  But the remaining changes for this project
      should be localized, and the behavior is already better than before.
      
      A not-very-related change is that sorting now makes use of btree comparison
      routines if it can find one, rather than invoking '<' twice.
      f905d65e
  6. Mar 05, 2001
  7. Feb 10, 2001
  8. Jan 14, 2001
  9. Jan 05, 2001
    • Tom Lane's avatar
      Remove not-really-standard implementation of CREATE TABLE's UNDER clause, · 2fb6cc90
      Tom Lane authored
      and revert documentation to describe the existing INHERITS clause
      instead, per recent discussion in pghackers.  Also fix implementation
      of SQL_inheritance SET variable: it is not cool to look at this var
      during the initial parsing phase, only during parse_analyze().  See
      recent bug report concerning misinterpretation of date constants just
      after a SET TIMEZONE command.  gram.y really has to be an invariant
      transformation of the query string to a raw parsetree; anything that
      can vary with time must be done during parse analysis.
      2fb6cc90
  10. Dec 26, 2000
  11. Dec 20, 2000
  12. Oct 05, 2000
  13. Jul 22, 2000
  14. Jun 09, 2000
  15. Apr 11, 2000
  16. Mar 27, 2000
  17. Jan 29, 2000
    • Peter Eisentraut's avatar
      A few minor psql enhancements · 2b84cbb6
      Peter Eisentraut authored
      Initdb help correction
      Changed end/abort to commit/rollback and changed related notices
      Commented out way old printing functions in libpq
      Fixed a typo in alter table / alter column
      2b84cbb6
  18. Jan 09, 2000
  19. Jul 22, 1999
  20. Jul 06, 1999
  21. Dec 29, 1998
  22. Oct 30, 1998
  23. Sep 22, 1998
  24. Sep 16, 1998
  25. Sep 07, 1998
  26. May 13, 1998
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