On Tue, Dec 10, 2019 at 11:43 AM Guillaume Lelarge <guilla...@lelarge.info>
wrote:

This query uses the column statistics to estimate bloat. AFAIK, json
> columns don't have statistics, so the estimation can't be relied on (for
> this specific table at least).
>

This was true prior to 9.5 (for xml at least, I don't know about json), but
should not be true from that release onward.  But still the difference
between 74440704 and 74506240, this does seem to me to be straining at a
gnat to swallow a camel.

Cheers,

Jeff

Reply via email to