Plpsql vs. SQL functions

On Tue, 23 May 2000, Bruce Momjian wrote:

Is there a reason to keep SQL functions now that we have PL/PgSQL,
except for backward compatibility? What do SQL functions do that can
not be done in PLpgSQL? Are they faster?

SQL function can return a new tuple. To my knowledge, PLpgSQL cannot.
I hope someone can prove me wrong ;)

-alex

On Tue, 23 May 2000, Bruce Momjian wrote:

Is there a reason to keep SQL functions now that we have PL/PgSQL,
except for backward compatibility? What do SQL functions do that can
not be done in PLpgSQL? Are they faster?

SQL function can return a new tuple. To my knowledge, PLpgSQL cannot.
I hope someone can prove me wrong ;)

Maybe. I know SQL can return multiple tuples.

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