+ <replaceable>context_item</replaceable> can be any character string that
+ can be succesfully cast to <type>jsonb</type>.
typo: "succesfully", should be "successfully"
maybe rephrase it to:
+ <replaceable>context_item</replaceable> can be jsonb type or any
character string that
+ can be successfully cast to <type>jsonb</type>.
+ <literal>ON EMPTY</literal> expression (that is caused by empty result
+ of <replaceable>path_expression</replaceable>evaluation).
need extra white space, should be
+ of <replaceable>path_expression</replaceable> evaluation).
+ The default when <literal>ON EMPTY</literal> or <literal>ON
ERROR</literal>
+ is not specified is to return a SQL NULL value when the respective
+ situation occurs.
Correct me if I'm wrong.
we can just say:
+ The default when <literal>ON EMPTY</literal> or <literal>ON
ERROR</literal>
+ is not specified is to return an SQL NULL value.
Anyway, this is a minor issue.
