Alvaro Herrera <[EMAIL PROTECTED]> writes:
> ... ISTM the format string
> should allow unconverted literals, so you would use
> SELECT to_char( INTERVAL '43 hours 20 minutes', 'MI min' );
... which to_char can do already, IIRC. The rewrite should define a new
set of format substitution codes, but not otherwise change the behavior
of to_char.
regards, tom lane
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