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(parent: c193b8c) | patch
Fix the fastpath rule for jsonb_concat with an empty operand.
authorAndrew Dunstan <andrew@dunslane.net>
Sun, 13 Sep 2015 21:06:45 +0000 (17:06 -0400)
committerAndrew Dunstan <andrew@dunslane.net>
Sun, 13 Sep 2015 21:06:45 +0000 (17:06 -0400)
commite7e3ac2d51130d707792e657facc58c160182342
treea7cd0a0c1b4ffe25c4062bacd108d00d4a66d8f5tree | snapshot
parentc193b8ca9d05e8167b6deb057c06a7580fa517a3commit | diff
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.
src/backend/utils/adt/jsonfuncs.c diff | blob | history
src/test/regress/expected/jsonb.out diff | blob | history
src/test/regress/expected/jsonb_1.out diff | blob | history
src/test/regress/sql/jsonb.sql diff | blob | history
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