array_sort()

Sorts the first dimension of the array. The sort order is determined by the default sort ordering of the array's element type; however, if the element type is collatable, the collation to use can be specified by adding a COLLATE clause to the array argument. If descending is true then sort in descending order, otherwise ascending order. If omitted, the default is ascending order. If nulls_first is true then nulls appear before non-null values, otherwise nulls appear after non-null values. If omitted, nulls_first is taken to have the same value as descending.

array_sort ( array anyarray [, descending boolean [, nulls_first boolean ]] ) → anyarray

SELECT array_sort(ARRAY[[2,4],[2,1],[6,5]]);

{{2,1},{2,4},{6,5}}

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