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(parent: ee7769b) | patch

Move the responsibility for calling StartupXLOG into InitPostgres, for

Move the responsibility for calling StartupXLOG into InitPostgres, for
those process types that go through InitPostgres; in particular, bootstrap
and standalone-backend cases. This ensures that we have set up a PGPROC
and done some other basic initialization steps (corresponding to the
if (IsUnderPostmaster) block in AuxiliaryProcessMain) before we attempt to
run WAL recovery in a standalone backend. As was discovered last September,
this is necessary for some corner-case code paths during WAL recovery,
particularly end-of-WAL cleanup.

Moving the bootstrap case here too is not necessary for correctness, but it
seems like a good idea since it reduces the number of distinct code paths.

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