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Help with an interesting Postgres question: Why isn't an Index Only Scan used on a partition accessed via the parent table?.
select version();
| version |
|---|
| PostgreSQL 14.6 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-15), 64-bit |
SELECT 1
with table1(something, other) as
( values ('example', 'yes, no')
, ('using', 'why, what')
)
select something
, trim(split_part(other, ',', 1)) other
, trim(split_part(other, ',', 2)) new
from table1;
| something | other | new |
|---|---|---|
| example | yes | no |
| using | why | what |
SELECT 2