[MASSMAIL]Sequence name with capital letters issue - Mailing list pgsql-bugs

From Thibaut BOULDOIRE
Subject [MASSMAIL]Sequence name with capital letters issue
Date
Msg-id CAJG-3PT3Hn6pq7hGpWLSpkK8bKCvv3gG4OmpkDJfD1+S6HA_JA@mail.gmail.com
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Responses Re: Sequence name with capital letters issue
Re: Sequence name with capital letters issue
List pgsql-bugs
Hello,

I'm using a PostgreSQL database.
PostgreSQL 10.17 on x86_64-redhat-linux-gnu

I have some sequences called like that :
app_user_SEQ
app_address_SEQ
...

The issue is that when I call the next value of the sequence, I receive an error.

When I try :

SELECT nextval("app_user_SEQ");

I have the following error :

SQL Error [42703]: ERROR: column "app_user_SEQ' does not exist

I don't understand why ? So I try to rename my sequences by writing them in lowercase.
So now my sequences are like that :
app_user_seq
app_address_seq
...

And now the SELECT nextval("app_user_seq"); is working.


I also tried to add again a sequence with a part in capital letters and I kept the lowercase one in the DB. Now I have these 4 sequences :
app_user_SEQ
app_address_SEQ
app_user_seq
app_address_seq

But now, something interesting happened. 
When I call this query : SELECT nextval("app_user_SEQ"); , it's the app_user_seq sequence that is incremented and not the app_user_SEQ.

I didn't find in the documentation something that mentioned this issue regarding sequence names with capital letters.
Is it a bug ? or is it something that I didn't find in the documentation ?

Thank you in advance

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