On 27.06.2017 at 19:39, Tomasz Tyrakowski t.tyrakowski@...
[firebird-support] wrote:

> Is it possible to change the collation of a varchar column in place
> (without making a temporary column, copying data, dropping the original
> column, making it anew and copying the data back)? Would setting
> RDB$RELATION_FIELDS.RDB$COLLATION do the trick (and is it safe to do)?

Just for the record: the actual field name is
RDB$RELATION_FIELDS.RDB$COLLATION_ID.

Tomasz