Commented by: @asfernandes

Cosmin, please put problem description + runnable test case.

I can't reproduce:

create database 't.fdb';
create view v1 (n) as select 1 from rdb$database;
create view v3 (n) as select * from v1;
create view newv (n) as select 1 from rdb$database;
alter view v3 (n) as select * from newv;
drop view v1;

No error in HEAD.

Commented by: Cosmin Apreutesei (cosmin_ap2)

(wrong window sorry)

Commented by: Cosmin Apreutesei (cosmin_ap2)

It seems you need to involve functions (built-ins or udfs) in your expressions.

Try this:

create view v1 (n) as select 'ABC' from rdb$database;
create view v3 (n) as select substring(lower(n) from 1) from v1;
create view newv (n) as select 'XYZ' from rdb$database;
alter view v3 (n) as select substring(lower(n) from 1) from newv;
drop view v1;

Commented by: @pcisar

QA test added.