Re: Mimic ALIAS in Postgresql?

On Tue, Jan 16, 2024 at 5:57 PM Rob Sargent <robjsargent(at)gmail(dot)com> wrote:

> On 1/16/24 15:39, Ron Johnson wrote:
>
> On Tue, Jan 16, 2024 at 5:31 PM Rob Sargent <robjsargent(at)gmail(dot)com> wrote:
>
>> On 1/16/24 10:20, Ron Johnson wrote:
>>
>> Some RDBMSs have CREATE ALIAS, which allows you to refer to a table by a
>> different name (while also referring to it by the original name).
>>
>> We have an application running on DB2/UDB which (for reasons wholly
>> unknown to me, and probably also to the current developer) extensively uses
>> this with two schemas: MTUSER and MTQRY. For example, sometimes refer to
>> MTUSER.sometable and other times refer to it as MYQRY.sometable.
>>
>> My goal is to present a way to migrate from UDB to PG with as few
>> application changes as possible. Thus, the need to mimic aliases.
>>
>> Maybe updatable views?
>> CREATE VIEW mtqry.sometable AS SELECT * FROM mtuser.sometable;
>>
>> Isn't it time to get rid of that debt? A sed -i 's/MTUSER/MTQRY/g' (or
>> vice versa) ends what looks to me to be a split brain problem. All the sql
>> is in git right? :)
>>
>> Or perhaps you have to beef the sed up to use word boundaries just in
>> case.
>>
>
> I'm not a Java web developer... 😁
>
>
> You need to adjust you glasses if that's what you see me as.
>

You're the one who apparently sees me as having any control over anything
except when the backups run. 😞