On 7/17/19 7:30 AM, Volkan Unsal wrote:
> I'm trying to remove a key from a jsonb column in a table with 10K rows,
> and the performance is abysmal. When the key is missing, it takes 5
> minutes. When the key is present, it takes even longer.
>
> Test with non-existent key:
>
> >> update projects set misc = misc - 'foo';
> Time: 324711.960 ms (05:24.712)
>
> What can I do to improve this?
Provide some useful information:
1) Postgres version
2) Table schema
3) Explain analyze of query
--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com