Merged PRs

dolt

977: Foreign keys now allow limited type changing
It seems that, specifically when using the string types, you may lengthen a field, but you may not change any other properties (cannot change character set or collation). Non-string types don't seem to allow lengthening, as you can't change an INT to a BIGINT.
The implemented behavior is actually an approximation of MySQL's, as you cannot cross some length thresholds due to how MySQL stores strings. From what I can gather for MySQL, as long as the on-disk data does not change AND does not need to be checked, it is allowed. I'm sure more type changes are allowed, but it's not documented, and therefore would require a ton of trial and error, so just shipping this for now.