Yes the query is legal,but if you use pg_upgrade to upgrade from 9.6 to
10.x , pg_upgrade will fail .
Enrico
Il 24/01/2018 13:11, Vincenzo Romano ha scritto:
> Those queries are all legal. No warning is due.
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Enrico Pirozzi
e(dot)pirozzi(at)nbsgroup(dot)it