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Create a function that will sort the elements of an array according to the element type's sort order. If the array has more than one dimension, the sub-arrays of the first dimension are sorted per normal array-comparison rules, leaving their contents alone. In support of this, add pg_type.typarray to the set of fields cached by the typcache. Author: Junwang Zhao <zhjwpku@gmail.com> Co-authored-by: Jian He <jian.universality@gmail.com> Reviewed-by: Aleksander Alekseev <aleksander@timescale.com> Discussion: https://postgr.es/m/CAEG8a3J41a4dpw_-F94fF-JPRXYxw-GfsgoGotKcjs9LVfEEvw@mail.gmail.com