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Java: Java doesn't have a built-in "fixed stack-dynamic" array type, but we can implement this concept by combining fixed-size arrays with stack allocation (local variables) and dynamic behavior ...
Presto Java running queries such as SELECT map_subset(c0, c1) FROM ( VALUES ( MAP(ARRAY[ARRAY[1, 2]], ARRAY[1]), ARRAY[ARRAY[1, NULL], ARRAY[2, NULL]] ) ) t(c0, c1 ...