Add row + col to foreign key & duplicate key errors

[nickzoic]

Improvements to output on foreign key error and duplicate key error:

• Sets "row" on foreign key error (it used to always be nil)

• Sets "col" on foreign key error and on duplicate key error, where the key has exactly one column. Otherwise "col" remains nil.

[nickzoic]

Hi, not sure why it is failing checks, it passes test suite run locally. I haven't written new tests for the specific behaviour I changed though.

[pezholio]

Ah, I think the problem is dependencies. A lot of the dependencies are stopping support for older versions of Ruby, so we need to pin the dependencies to older versions. I'll do this, and then let you know. Once we've done, if you pull Master into your branch and push it, we should have passing tests :+1:

[nickzoic]

No worries, thanks, let me know!

[pezholio]

@nickzoic Sorry for the delay, this should be good to go now

[coveralls]

Coverage increased (+0.003%) to 97.225% when pulling 6939bf19002a1530e9514eac9de5bd5f677ef212 on nickzoic:feature-add-row-col-to-foreign-key-error into f8fa9e15f4d314aba1970444c4eee22210467530 on theodi:master.

[coveralls]

Coverage increased (+0.003%) to 97.225% when pulling 6939bf19002a1530e9514eac9de5bd5f677ef212 on nickzoic:feature-add-row-col-to-foreign-key-error into f8fa9e15f4d314aba1970444c4eee22210467530 on theodi:master.

[pezholio]

@nickzoic Actually, you don't need to do anything here. Tests are all good now, as I restarted the build