On Tue, 2023-06-06 at 11:42 -0300, Rômulo Coutinho wrote:
> We recently upgraded to Postgres 15.3. When running ANALYZE, we get the following message:
> ERROR: could not determine which collation to use for string comparison
> HINT: Use the COLLATE clause to set the collation explicitly.
>
> We have never seen this before. Could this be a bug?
Impossible to say without a way to reproduce.
Yours,
Laurenz Albe