Thanks, In general, API for creation of custom ClauseElements and compilers 
will solve my problem

понедельник, 27 июня 2016 г., 19:12:05 UTC+5 пользователь Mike Bayer 
написал:
>
> not currently, and we don't actually spend much time working on the 
> Firebird dialect (would love if someone could come take it over).   Your 
> best bet would be working with custom compilation rules described in 
> http://docs.sqlalchemy.org/en/latest/core/compiler.html . 
>
>
>
> On 06/27/2016 07:47 AM, uralbash wrote: 
> > 
> >     Is there a way to construct a query "UPDATE OR INSERT" for firebird 
> >     like Postgres "INSERT...ON CONFLICT (Upsert)" 
> >     (
> http://docs.sqlalchemy.org/en/latest/dialects/postgresql.html#insert-on-conflict-upsert)?
>  
>
> > 
> > 
> > Firebird docs 
> > http://www.firebirdsql.org/refdocs/langrefupd25-update-or-insert.html 
> > 
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