Re: Help with count(*)

Martha Stewart called it a Good Thing when mallah(at)trade-india(dot)com (Rajesh Kumar Mallah) wrote:
> INFO: "profiles": found 0 removable, 369195 nonremovable row versions in 43423 pages
> DETAIL: 246130 dead row versions cannot be removed yet.
> Nonremovable row versions range from 136 to 2036 bytes long.

It seems as though you have a transaction open that is holding onto a
whole lot of old rows.

I have seen this happen somewhat-invisibly when a JDBC connection
manager opens transactions for each connection, and then no processing
happens to use those connections for a long time. The open
transactions prevent vacuums from doing any good...
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