2016-12-15 16:23 GMT+01:00 Adrian Klaver <adrian.kla...@aklaver.com>:

> On 12/15/2016 07:17 AM, Tom DalPozzo wrote:

Hi,
>
> it's not clear to me when tuple data (max 1000 bytes total) get
>
> compressed on disk and when not.
>
> I tried with pg_column_size to find the tuple's size but I get ambiguous
>
> results.
>
>
> What is the table definition?


> Maybe this will help?:


> https://www.postgresql.org/docs/9.5/static/storage-toast.html


> It seems to work but sometimes the tuples seem compressed and sometime not.
>
> I tried both with constant data and random bytes.
>
>
>> Thanks
>
> Pupillo
>
>
>>
>>
>
> --

Adrian Klaver

adrian.kla...@aklaver.com


Hi,
definition:   create table stato (id bigint, dati bytea);
then I populate the dati field with  100 bytes.
Pupillo

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