On Sun, Jan 3, 2016 at 3:24 PM, Peter Krauss <ppkra...@gmail.com> wrote: > The usefulness of ->> operator is indisputable, but even with boolean or > numeric values, with good binary internal representation, it returns JSONB > value as text data type. > > The simple (myJSONB->>'myField')::expectedType is not enough because: > > 1) there are no internal optimization, need two-step casting, first > bynary-to-text, them text-to-expectedType. > > 2) if expectedType is not the expected (in the associated jsonb_typeof), > generates an error... The ideal "return NULL" convention is not easy to > implement with usual casting.
Agreed, something like this would be useful. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
