assertion failure because internal typename for CHAR(n) is BPCHAR

[tkrajacic]

I hit an assertion failure in PostgresData+Int.swift:

switch self.formatCode {
        case .binary:
            switch self.type {
            case .char, .bpchar:
                assert(value.readableBytes == 1) // <- Here

debugger output at that point:

(lldb) po self.type
▿ BPCHAR
  - rawValue : 1042

(lldb) po postgresData.debugDescription
"Optional(0x0020 (BPCHAR))"

(lldb) po self.debugDescription
"0x0020 (BPCHAR)"

and value.readableBytes is 2.

Most likely has to do with CHAR(1) columns I have in my tables although those tables are empty when I hit the assertion.