1. 26 7月, 1999 2 次提交
  2. 25 7月, 1999 1 次提交
    • T
      Clean up messy clause-selectivity code in clausesel.c; repair bug · ac4913a0
      Tom Lane 提交于
      identified by Hiroshi (incorrect cost attributed to OR clauses
      after multiple passes through set_rest_selec()).  I think the code
      was trying to allow selectivities of OR subclauses to be passed in
      from outside, but noplace was actually passing any useful data, and
      set_rest_selec() was passing wrong data.
      
      Restructure representation of "indexqual" in IndexPath nodes so that
      it is the same as for indxqual in completed IndexScan nodes: namely,
      a toplevel list with an entry for each pass of the index scan, having
      sublists that are implicitly-ANDed index qual conditions for that pass.
      You don't want to know what the old representation was :-(
      
      Improve documentation of OR-clause indexscan functions.
      
      Remove useless 'notclause' field from RestrictInfo nodes.  (This might
      force an initdb for anyone who has stored rules containing RestrictInfos,
      but I do not think that RestrictInfo ever appears in completed plans.)
      ac4913a0
  3. 23 7月, 1999 3 次提交
  4. 22 7月, 1999 3 次提交
  5. 21 7月, 1999 7 次提交
  6. 20 7月, 1999 9 次提交
  7. 19 7月, 1999 15 次提交