Re: Select on partitioned table is very slow

Em qui., 25 de ago. de 2022 às 10:43, Jose Osinde <jose(dot)osinde(at)gmail(dot)com>
escreveu:

>
> Dear Depesz, Laurenz,
>
> Thanks very much for the fast responses. They are actually correct and
> saved me a lot of time. I couldn't test the cast from the Java test but
> this is something I can deal with later on (most probably updating the
> column types to text in the database side instead). But what I could do was
> reproduce the same problem in the psql console using the cast in the other
> way. This sentence:
>
> explain analyze select logical_identifier, version_id, lastproduct
> FROM test_product_ui_partition.product_ui pui
> WHERE
> pui.mission_id='urn:esa:psa:context:investigation:mission.em16'::citext
> AND
> pui.logical_identifier='urn:esa:psa:em16_tgo_frd:data_raw:frd_raw_sc_n_20220729t000000-20220729t235959'::citext;
>
The query in explain.txt attached, it seems not the same.

explain analyze select logical_identifier, version_id, lastproduct
FROM test_product_ui_partition.product_ui pui
WHERE pui.mission_id='urn:esa:psa:context:investigation:mission.em16'::text
AND pui.logical_identifier='urn:esa:psa:em16_tgo_frd:data_raw:frd_raw_sc_n_20220729t000000-20220729t235959'::text;

::text?

regards,

Ranier Vilela