Re: BUG #14394: No error raised in IN-clause when commas are missing

On Mon, Oct 24, 2016 at 02:28:41PM +0000, andreas.imboden@bl.ch wrote:
> bug description:
> in list with new line instead of comma produces incorrect result.
> should instead report a syntax error message

This is not a bug.

Please check:
https://www.postgresql.org/docs/9.6/static/sql-syntax-lexical.html#SQL-SYNTAX-CONSTANTS
Specifically part: 4.1.2.1. String Constants.

depesz