On Thu, Dec 1, 2016 at 9:54 PM, xu jian <jame...@outlook.com> wrote:
> Thanks every for your help. I am not familiar with the internal of the
> vacuum freeze, just curious if there is no row change on the table(in other
> words, all pages are frozen), why could index page have dead tuple?

It can't.   If the *entire* table is frozen, then I would think it
shouldn't be scanning the indexes.

Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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