40-csvql: applying projections results in 'does not have column' error

[djhworld]

With the code in the video, if you try and apply a projection to a query, you get this error

mysql> select name from cities;
ERROR 1105 (HY000): unknown error: table "cities" does not have column "name"

I know this isn't demonstrated in the video

[djhworld]

PR https://github.com/campoy/justforfunc/pull/92 fixes this.