Re: Increased storage size of jsonb in pg15

On 12/14/23 06:48, Sean Flaherty wrote:
> We have a process that runs once an hour to read the .dat file in csv
> format then a node script using the pg package
> <https://github.com/brianc/node-postgres> version "8.8.0" to create the
> json objects and insert the data records as jsonb data.

Now I am not understanding.

1) In your OP you mentioned checking size of the column storage using
pg_column_size, yet what you show for increase in size are datafile.dat.

2) So how is datafile.dat related to this issue?

3) Show how you are determining that the storage in the database has
increased in size.

>
> None of the upload process changed during the underlying database upgrade.
>
>
> On Wed, Dec 13, 2023 at 4:56 PM Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com
> <mailto:adrian(dot)klaver(at)aklaver(dot)com>> wrote:
>
> On 12/13/23 15:49, Sean Flaherty wrote:
> > More information needed:
> >
>
> > 2) An example of reported size for the 14.? and 15.5 cases.
> >
> >    Since upgrading from 14.8 to 15.5, the jsonb data that was
> previously
> > written in 14.8 is reporting a smaller size than the same hourly
> data
> > written after the upgrade (upgrade indicated in yellow):
>
> What is producing datafile.dat and how?
>
> >
> > *file*        *hourly_timestamp*      *filename_bytes*
> *timestamp_bytes*
> > *data_filesize*       *created_at_bytes*      *updated_at_bytes*
> > datafile.dat  2023-10-19 12:00:00     23      8       1682    8
>      8
> > datafile.dat  2023-10-19 13:00:00     23      8       1687    8
>      8
> > datafile.dat  2023-10-19 14:00:00     23      8       1685    8
>      8
> > datafile.dat  2023-10-19 15:00:00     23      8       1668    8
>      8
> > datafile.dat  2023-10-19 16:00:00     23      8       2155    8
>      8
> > datafile.dat  2023-10-19 17:00:00     23      8       2178    8
>      8
> > datafile.dat  2023-10-19 18:00:00     23      8       2199    8
>      8
> > datafile.dat  2023-10-19 19:00:00     23      8       2187    8
>      8
> > datafile.dat  2023-10-19 20:00:00     23      8       2180    8
>      8
> > datafile.dat  2023-10-19 21:00:00     23      8       2176    8
>      8
> > datafile.dat  2023-10-19 22:00:00     23      8       2053    8
>      8
> > datafile.dat  2023-10-19 23:00:00     23      8       2043    8
>      8
>
> --
> Adrian Klaver
> adrian(dot)klaver(at)aklaver(dot)com <mailto:adrian(dot)klaver(at)aklaver(dot)com>
>

--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com