Re: automatic analyze: readahead - add "IO read time" log message

[Justin Pryzby]

This patch adds hits/misses/dirtied, but explain says hit/read/dirtied/written.

Should it say "read" instead of "misses" ?

src/backend/access/heap/vacuumlazy.c:                                           
         _("buffer usage: %lld hits, %lld misses, %lld dirtied\n"),

src/backend/commands/explain.c-                                 
appendStringInfo(es->str, " hit=%lld",
src/backend/commands/explain.c-                                                 
                 (long long) usage->shared_blks_hit);
src/backend/commands/explain.c-                         if 
(usage->shared_blks_read > 0)
src/backend/commands/explain.c-                                 
appendStringInfo(es->str, " read=%lld",
src/backend/commands/explain.c-                                                 
                 (long long) usage->shared_blks_read);
src/backend/commands/explain.c-                         if 
(usage->shared_blks_dirtied > 0)
src/backend/commands/explain.c:                                 
appendStringInfo(es->str, " dirtied=%lld",
src/backend/commands/explain.c-                                                 
                 (long long) usage->shared_blks_dirtied);
src/backend/commands/explain.c-                         if 
(usage->shared_blks_written > 0)
src/backend/commands/explain.c-                                 
appendStringInfo(es->str, " written=%lld",
src/backend/commands/explain.c-                                                 
                 (long long) usage->shared_blks_written);
src/backend/commands/explain.c-                         if (has_local || 
has_temp)