pgsql: Always make a BufferAccessStrategy for ANALYZE

Always make a BufferAccessStrategy for ANALYZE

32fbe0239 changed things so we didn't bother allocating the
BufferAccessStrategy during VACUUM (ONLY_DATABASE_STATS); and VACUUM
(FULL), however, it forgot to consider that VACUUM (FULL, ANALYZE) is a
possible combination.  That change would have resulted in such a command
allowing ANALYZE to make full use of shared buffers, which wasn't
intended, so fix that.

Reported-by: Melanie Plageman
Discussion: https://postgr.es/m/CAAKRu_bJRKe+v_=OqwC+5sA3j5qv8rqdAwy3+yHaO3wmtfrCRg@mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/bccd6908ca82c6cba0c76b669bc81fc9f3fb60cd

Modified Files
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src/backend/commands/vacuum.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)