Alvaro Herrera <[EMAIL PROTECTED]> writes:
> Andrew Hammond escribió:
>> Which got me looking for "date_part". But that only seems to be in the
>> gram.y file, include/catalog/pg_proc.h and the test suite. The pg_proc.h
>> stuff looks pretty interesting, but to decipher it, I figured I need to read
>> up on SystemFuncName().

> That's where you got lost -- if you had looked at the pg_proc.h entries
> more carefully you would have seen that they point to other functions,

Yeah --- AFAIR SystemFuncName() is just a convenience function that
does the equivalent of plastering "pg_catalog." on the front of the
mentioned name, so that it can't be confused with any non-built-in

                        regards, tom lane

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