Обсуждение: pgsql/src/backend/nodes (copyfuncs.c equalfuncs.c readfuncs.c)

  Date: Tuesday, December 12, 2000 @ 18:33:33
Author: tgl

Update of /home/projects/pgsql/cvsroot/pgsql/src/backend/nodes
     from hub.org:/home/projects/pgsql/tmp/cvs-serv7711/backend/nodes

Modified Files:
    copyfuncs.c equalfuncs.c readfuncs.c

-----------------------------  Log Message  -----------------------------

Cache eval cost of qualification expressions in RestrictInfo nodes to
avoid repeated evaluations in cost_qual_eval().  This turns out to save
a useful fraction of planning time.  No change to external representation
of RestrictInfo --- although that node type doesn't appear in stored
rules anyway.