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different empty array syntax requirements

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How is that one pgsql build (both are 9.5.2) has different casting behavior for empty arrays:


ericmj=# select ARRAY[]::text[];
 array
-------
 {}
(1 row)

ericmj=# select (ARRAY[])::text[];
 array
-------
 {}
(1 row)


--VS--


pedcard=# select ARRAY[]::text[];
 array
-------
 {}
(1 row)

pedcard=# select (ARRAY[])::text[];
ERROR:  cannot determine type of empty array
LINE 1: select (ARRAY[])::text[];
                ^
HINT:  Explicitly cast to the desired type, for example ARRAY[]::integer[].

-- 
Scott Ribe
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