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UUID()

Returns a Universal Unique Identifier (UUID).

UUID Example
SELECT uuid() FROM stream
=> 64c82e4c-7314-45e2-8ee2-c7283f6dbb74

Eval(String)

Evaluates arbitrary expressions.

Eval Example
SELECT eval("2+3") FROM stream
=> 5

Sleep(Number)

Causes the currently executing operator to sleep for the specified number of milliseconds.

eIif(Expression, Object, Object)

Returns the first Object if the expression evaluates to true else the second Object

 

Eval Example
SELECT eif(1>0, "Greater than 0", "Lower or equal") FROM stream
=> Greater than 0


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