Thread: pgsql: When updating ShmemVariableCache from a checkpoint record, be

Log Message:
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When updating ShmemVariableCache from a checkpoint record, be sure to set
all the values derived from oldestXid, not just that field.  Brain fade in
one of my patches associated with flat file removal, exposed by a report
from Fujii Masao.

With this change, xidVacLimit should always be valid, so remove a couple of
bits of complexity associated with the previous assumption that sometimes
it wouldn't get set right away.

Modified Files:
--------------
    pgsql/src/backend/access/transam:
        varsup.c (r1.88 -> r1.89)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/transam/varsup.c?r1=1.88&r2=1.89)
        xlog.c (r1.373 -> r1.374)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/transam/xlog.c?r1=1.373&r2=1.374)