Re: function with different return type depending on parameter? - Mailing list pgsql-general

From Pavel Stehule
Subject Re: function with different return type depending on parameter?
Date
Msg-id CAFj8pRB9NvoYROx4zbUrAqqN2ypR2DuiAOgxC=FumJbsu-hVUw@mail.gmail.com
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In response to function with different return type depending on parameter?  (James Harper <james.harper@bendigoit.com.au>)
List pgsql-general
Hello

no it is not possible

Regards

Pavel

p.s. result - type must be known before execution (when execution plan is created)


2014-02-12 10:20 GMT+01:00 James Harper <james.harper@bendigoit.com.au>:
is it possible to have a function that can return a different type depending on the parameters? Eg (approximately)

if param = "one" then return 1
if param = "two" then return "2"
if param = "three" then return 3.0
etc

I can't see any variant type

thanks

James






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