i64 support for MySQL

[diggyk]

I'm using 0.11.4 and am having issues with the MySQL support. I saw that Timestamp is currently not supported as Insertable but I can't even represent my timestamp as i64 because that too looks unsupported:

38 | #[derive(Insertable)] | ^^^^^^^^^^ the trait diesel::Expressionis not implemented fori64| = note: required because of the requirements on the impl ofdiesel::Expressionfor&'a i64 = note: this error originates in a macro outside of the current crate

[diggyk]

Looks like the issue I was having is that I was using int(20) instead of "bigint" in my table definition. And when using infer_schema, bigint looks for a type of Bigint, which doesn't exist. Anyway, I use the table macro instead of inferring and everything works (except timestamp)