On Fri, May 22, 2020 at 5:07 PM Adrian Klaver <adrian.kla...@aklaver.com>
wrote:
> On 5/22/20 7:48 AM, Nico De Ranter wrote:
> > The original server was running 9.5.14
> > The system I am currently testing on is 11.8
> >
> > 2 fields are marked as 'extended'. However if I understand correctly
> > the table isn't actually toasted:
> >
> >
> > oid | table_schema | table_name | total_bytes |
> > total | index | toast | table
> >
> -------+--------------------+-------------------------+--------------+------------+------------+------------+------------
> > 19601 | public | file | 147648061440 |
> > 138 GB | 57 GB | 8192 bytes | 80 GB
>
> What query are you using to get above?
>
SELECT oid, table_schema, table_name,
total_bytes,
pg_size_pretty(total_bytes) AS total
, pg_size_pretty(index_bytes) AS INDEX
, pg_size_pretty(toast_bytes) AS toast
, pg_size_pretty(table_bytes) AS TABLE
FROM (
SELECT *, total_bytes-index_bytes-COALESCE(toast_bytes,0) AS
table_bytes FROM (
SELECT c.oid,nspname AS table_schema, relname AS TABLE_NAME
, c.reltuples AS row_estimate
, pg_total_relation_size(c.oid) AS total_bytes
, pg_indexes_size(c.oid) AS index_bytes
, pg_total_relation_size(reltoastrelid) AS toast_bytes
FROM pg_class c
LEFT JOIN pg_namespace n ON n.oid = c.relnamespace
WHERE relkind = 'r'
) a) a order by total_bytes desc;
Stolen from stackoverflow :-)
Nico
--
Nico De Ranter
Operations Engineer
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