Suggestions please: names for function cachabilityattributes 
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 Suggestions please: names for function cachabilityattributes

It occurs to me that we also need a better term for the overall concept.
"cacheability" has misled at least two people (that I can recall) into
thinking that we maintain some kind of function result cache --- which
is not true, and if it were true we'd need the term "cacheable" for
control parameters for the cache, which this categorization is not.

I am thinking that "mutability" might be a good starting point instead
of "cacheability".  This leads immediately to what seems like a fairly
reasonable set of names:

pg_proc column: promutable or proi{*filter*}able

case 1: "immutable"
case 2: "mutable", or perhaps "stable"
case 3: "volatile"

Thoughts?

                        regards, tom lane

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Mon, 20 Sep 2004 02:31:08 GMT
 
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