Hi. in v11, json_query: + The returned <replaceable>data_type</replaceable> has the same semantics + as for constructor functions like <function>json_objectagg</function>; + the default returned type is <type>text</type>. + The <literal>ON EMPTY</literal> clause specifies the behavior if the + <replaceable>path_expression</replaceable> yields no value at all; the + default when <literal>ON ERROR</literal> is not specified is to return a + null value.
the default returned type is jsonb? Also in above quoted second last line should be <literal>ON EMPTY</literal> ? Other than that, the doc looks good.
