Thread: pgsql: Make array_cat more paranoid about checking datatypes in empty

Log Message:
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Make array_cat more paranoid about checking datatypes in empty arrays.

Modified Files:
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    pgsql/src/backend/utils/adt:
        array_userfuncs.c (r1.13 -> r1.14)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/array_userfuncs.c.diff?r1=1.13&r2=1.14)