Bruce Momjian escribió:

> For longterm strategy, let me list the challenges for pg_migrator from
> any major upgrade (listed in the DEVELOPERS file):
> 
>  Change                                  Conversion Method
>  
> ------------------------------------------------------------------------------
>  clog                                    none
>  heap page header, including bitmask     convert to new page format on read
>  tuple header, including bitmask         convert to new page format on read
>  data value format                       create old data type in new cluster
>  index page format                       reindex, or recreate old index 
> methods

TOAST changes?

-- 
Alvaro Herrera                                http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.

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