Обсуждение: pgsql/src/include/nodes (relation.h)

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pgsql/src/include/nodes (relation.h)

От
tgl@postgresql.org
Дата:
  Date: Tuesday, December 12, 2000 @ 18:33:32
Author: tgl

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

Modified Files:
    relation.h

-----------------------------  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.