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authorAndrew Dunstan <andrew@dunslane.net>2015-09-13 17:06:45 -0400
committerAndrew Dunstan <andrew@dunslane.net>2015-09-13 17:06:45 -0400
commite7e3ac2d51130d707792e657facc58c160182342 (patch)
treea7cd0a0c1b4ffe25c4062bacd108d00d4a66d8f5 /src/backend/access/gist
parentc193b8ca9d05e8167b6deb057c06a7580fa517a3 (diff)
downloadpostgresql-e7e3ac2d51130d707792e657facc58c160182342.tar.gz
postgresql-e7e3ac2d51130d707792e657facc58c160182342.zip
Fix the fastpath rule for jsonb_concat with an empty operand.
To prevent perverse results, we now only return the other operand if it's not scalar, and if both operands are of the same kind (array or object). Original bug complaint and patch from Oskari Saarenmaa, extended by me to cover the cases of different kinds of jsonb. Backpatch to 9.5 where jsonb_concat was introduced.
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