hello everyone
who can explain it ?thanks!
--
View this message in context: http://postgresql.1045698.n5.nabble.com/how-to-calculate-or-know-seq-scan-scan-how-many-blocks-every-time-tp5717892p5718082.html
Sent from the PostgreSQL - general mailing list archive at Nabble.com.
--
Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-general
