tommyh (10/27/2011)

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Yes the stream aggregate gets called first... but it hasnt finished. So is the important part which gets called first or which gets finished first? Personally i think its the part that gets finished first thats important (or more precisly the thing that performs its purpose first). I cant say a function has been executed when it hasnt actually done anything.

Hugo Kornelis (10/27/2011)

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"Exection plans suck". Refering to the little-known fact that data is not pushed from right to left (as most people usually read plans, myself included), but pulled ("sucked") by the top-left operator from the operator to the right and below it.

tommyh (10/27/2011)

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Yes the stream aggregate gets called first... but it hasnt finished. So is the important part which gets called first or which gets finished first? Personally i think its the part that gets finished first thats important (or more precisly the thing that performs its purpose first). I cant say a function has been executed when it hasnt actually done anything.

Could be a language thing though that i put a different meaning into "executes" then everyone else

/T

ksummerlin-532910 (10/27/2011)

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I agree with tommy on this one. The question is a bit flawed. If you are attempting to teach the reader that the plan started with the left-most operation, then ask that in the question. Otherwise, you are attempting to bait the reader (unintentionally of course) into choosing the meaning of 'executes first'.

Nonetheless, the links are great ones to read and understand.

function main(){
    return sayHello() + " " + sayWorld()
}

function sayHello(){
    return "Hello"
}

function sayWorld(){
    return "World"
}