Hey Danny,
it's not a view, it's a variable in PL/SQL with a row type. The thing
is, variable names must not be quoted, but I have no idea how to avoid
quoting for this single use case with the relational algebra model in
Calcite.
Regards,
Christian
Am 18.02.2020 um 04:22 schrieb Danny Chan:
From the case you gave, the “variable” seems a view ? Sorry I’m not familiar
with the traditional RDBMS.
Best,
Danny Chan
在 2020年2月17日 +0800 PM1:27，Christian Beikov <christian.bei...@gmail.com>，写道：
Hello,
I asked this before but I guess the question got too big, so I thought
splitting it up might be better.
I am trying to generate a query from a relational model on which I did a
few tranformations but I don't know how to refer to a "variable".
In a SQL trigger, there usually are two variable "OLD" and "NEW" which I
want to be able to refer to. I tried introducing a "transient scan", but
unfortunately that won't work because this is not a relation and can't
be quoted. I will workaround this for now by introducing a temporary
relation in the trigger so that I can refer to it, but ideally I want to
refer to the variable directly.
The simplest example SQL that I want to be able to produce would look
like this:
select NEW."some_column"
The tricky part here is that NEW is not quoted. I don't know how I can
represent this in a relation expression.
Thanks in advance for any help!
Regards,
Christian
