nice, same behaviour on 15.7 SP122 on Linux
the code shows there's no check for user_id if you want to rename a column only
code snippet from sp_rename on 15.7
| /* | |
| ** Now check to see that the column exists in a table owned | |
| ** by the user. Don't do this if the user explicitly specified | |
| ** that this is an index or partition. | |
| */ | |
| if (@indorcolorpar is null or (@indorcolorpar not in ('index', 'partition'))) | |
| begin | |
| select @objid = o.id, @colid = c.colid | |
| from sysobjects o, syscolumns c | |
| where c.id = @tabobjid | |
| and c.id = o.id | |
| and c.name = @colname | |
| and ( o.sysstat & 7 = 2 /* user table */ | |
| or o.sysstat & 7 = 3) /* view */ | |
| end |
Also checked on old version 15.0, there's the proper check:
and sysobjects.uid = user_id()