Обсуждение: pgsql: Fix inconsistency in pg_buffercache docs.

Fix inconsistency in pg_buffercache docs.

Commit 6e654546fb avoids locking bufmgr partitions to make pg_buffercache
less disruptive on production systems but forgot to update the docs.

Reported-by: Sawada Masahiko
Author: Sawada Masahiko
Reviewed-by: Amit Kapila
Backpatch-through: 10
Discussion: https://postgr.es/m/CA+fd4k6sD8oeP1qJbFAor=rCpYckU9DsywHiYx3x5Hz5Z8Ua_w@mail.gmail.com

Branch
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REL_10_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/b50712ba7530361a345ae01e5d929b3e6f46a0dc

Modified Files
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doc/src/sgml/pgbuffercache.sgml | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)