4 Missing operators for jsonb in PostgreSQL 9.4, this may contain some errors and bad form as it's primarily just experimentation (i'm not a frequent C programmer; but everyone has to start somewhere right?). Please test that it suits your requirements before using in any production scenario.
9 The following behave like hstore 1.x operators, i.e. without nested jsonb traversal
11 * deletion using **-** operator
12 * jsonb_delete(jsonb, text)
13 * jsonb_delete(jsonb, text[])
14 * jsonb_delete(jsonb, jsonb)
15 * concatenation using **||** operator
16 * jsonb_concat(jsonb, jsonb)
17 * replacement using **#=** operator
18 * jsonb_replace(jsonb, jsonb)
20 The following are intended to eventually function like hstore 2.0 operators
22 * deletion at chained path using **#-** operator
23 * jsonb_delete_path(jsonb, text[])
24 * replacement at chained path using function (no operator)
25 * jsonb_replace_path(jsonb, text[], jsonb)