a switch statement that has an empty default label.  A label of a
    switch statement must be followed by a statement (or a label which
    is followed by a statement (or a label which ...)).

3.  Files include stringinfo.h failed to compile.  The macro,
    'appendStringInfoCharMacro' is implemented with a '?:' operation
    that returns a void expression for the true part and a char expresion
    for the false part.  Both the true and false parts of the '?:' oper-
    ator must return the same type.

Billy G. Allie

syscache and relcache flushes).  Relcache entry rebuild now preserves
original tupledesc, rewrite rules, and triggers if possible, so that pointers
to these things remain valid --- if these things change while relcache entry
has positive refcount, we elog(ERROR) to avoid later crash.  Arrange for
xact-local rels to be rebuilt when an SI inval message is seen for them,
so that they are updated by CommandCounterIncrement the same as regular rels.
(This is useful because of Hiroshi's recent changes to process our own SI
messages at CommandCounterIncrement time.)  This allows simplification of
some routines that previously hacked around the lack of an automatic update.
catcache now keeps its own copy of tupledesc for its relation, rather than
depending on the relcache's copy; this avoids needing to reinitialize catcache
during a cache flush, which saves some cycles and eliminates nasty circularity
problems that occur if a cache flush happens while trying to initialize a
catcache.
Eliminate a number of permanent memory leaks that used to happen during
catcache or relcache flush; not least of which was that catcache never
freed any cached tuples!  (Rule parsetree storage is still leaked, however;
will fix that separately.)
Nothing done yet about code that uses tuples retrieved by SearchSysCache
for longer than is safe.

  * Portions Copyright (c) 1996-2000, PostgreSQL, Inc

to all files copyright Regents of Berkeley.  Man, that's a lot of files.

robust, since it's about to get used much more heavily.

all fields that should be set).  Add a MoveToFront primitive to speed up
one of the hotspots in SearchSysCache.