The elements of this array can be accessed by an index ranging from 1 to the maximum
cardinality (the function CARDINALITY returns the number of current elements in the
array). Two arrays of comparable types are considered identical if and only if they have
the same cardinality and every ordinal pair of elements is identical.
An array type is specified by an array type constructor, which can be defined by enumerating
the elements as a comma-separated list enclosed in square brackets or by using
a query expression with degree 1; for example: