Re: Altering column collation

On 19 July 2011 21:04, Guillaume Lelarge <guillaume(at)lelarge(dot)info> wrote:
> On Tue, 2011-07-19 at 20:43 +0100, Thom Brown wrote:
>> On 19 July 2011 08:32, Guillaume Lelarge <guillaume(at)lelarge(dot)info> wrote:
>> > On Tue, 2011-07-19 at 00:48 +0100, Thom Brown wrote:
>> >> [...]
>> >> Attached is a patch which fixes #328.  Currently if you change a
>> >> column's collation, it actually drops the column.  This changes it so
>> >> that it issues an ALTER TYPE to adjust the collation instead.
>> >>
>> >
>> > Pushed on master. Thanks for yet another patch :)
>> >
>> > I didn't push it on 1.14 yet. The patch doesn't work here, and I guess
>> > it's because I didn't push your previous patch. I'm not sure on the best
>> > move here. Should we simply remove the bug (no change detected when
>> > changing collation on the column properties dialog)? or should we apply
>> > both patches (which will give us bugfix, and better handling of
>> > columns)? Any ideas?
>>
>> Why can't we apply the patch to 1.14?  I don't recall making any
>> previous changes to dlgColumn.cpp.  I just switched to 1.14,
>> fast-forwarded all updates, applied the patch, built it, and it
>> behaves correctly.
>>
>
> We could apply it, but it doesn't work. I guess you did changes on
> "Prevent duplicate members' names in a composite type" that are needed
> for "Fix weird behaviour when changing column's collation" to make it
> work.

It seems to work if you go to the table properties and edit the
columns from there, but not if you go into the column directly. I
tried making a change to detect the collation drop-down change, but
for some reason it either still doesn't pick it up at all, or doesn't
show the initial "-- nothing to change" in the SQL tab, but in that
latter case it does show the correct SQL when changing collation. I'm
not sure what's going on there.

--
Thom Brown
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