doc: fix json_extract_path_text() typo by adding jsonb

Report from rudolf 

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 0809a6d2e921a8fccb9418175062a6e5f93c61c7..1759c8876c40840780d5a3e30c37829f2b17cb4c 100644 (file)
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -10536,7 +10536,7 @@ table2-mapping
       
       
        json_extract_path_text(from_json json, VARIADIC path_elems text[])
-         json_extract_path_text(from_json json, VARIADIC path_elems text[])
+         json_extract_path_text(from_json jsonb, VARIADIC path_elems text[])
        
        text