diff --git a/doc/src/sgml/information_schema.sgml b/doc/src/sgml/information_schema.sgml
index 6df69db4aad..4e423da5831 100644
--- a/doc/src/sgml/information_schema.sgml
+++ b/doc/src/sgml/information_schema.sgml
@@ -379,6 +379,42 @@
+
+ character_set_catalog
+ sql_identifier
+ Applies to a feature not available in PostgreSQL
+
+
+
+ character_set_schema
+ sql_identifier
+ Applies to a feature not available in PostgreSQL
+
+
+
+ character_set_name
+ sql_identifier
+ Applies to a feature not available in PostgreSQL
+
+
+
+ collation_catalog
+ sql_identifier
+ Not yet implemented
+
+
+
+ collation_schema
+ sql_identifier
+ Not yet implemented
+
+
+
+ collation_name
+ sql_identifier
+ Not yet implemented
+
+
numeric_precision
cardinal_number
@@ -1321,19 +1357,19 @@
collation_catalog
sql_identifier
- Applies to a feature not available in PostgreSQL
+ Not yet implemented
collation_schema
sql_identifier
- Applies to a feature not available in PostgreSQL
+ Not yet implemented
collation_name
sql_identifier
- Applies to a feature not available in PostgreSQL
+ Not yet implemented
@@ -1996,19 +2032,19 @@
collation_catalog
sql_identifier
- Applies to a feature not available in PostgreSQL
+ Not yet implemented
collation_schema
sql_identifier
- Applies to a feature not available in PostgreSQL
+ Not yet implemented
collation_name
sql_identifier
- Applies to a feature not available in PostgreSQL
+ Not yet implemented
@@ -2273,19 +2309,19 @@ ORDER BY c.ordinal_position;
collation_catalog
sql_identifier
- Applies to a feature not available in PostgreSQL
+ Not yet implemented
collation_schema
sql_identifier
- Applies to a feature not available in PostgreSQL
+ Not yet implemented
collation_name
sql_identifier
- Applies to a feature not available in PostgreSQL
+ Not yet implemented
@@ -3023,19 +3059,19 @@ ORDER BY c.ordinal_position;
collation_catalog
sql_identifier
- Applies to a feature not available in PostgreSQL
+ Always null, since this information is not applied to parameter data types in PostgreSQL
collation_schema
sql_identifier
- Applies to a feature not available in PostgreSQL
+ Always null, since this information is not applied to parameter data types in PostgreSQL
collation_name
sql_identifier
- Applies to a feature not available in PostgreSQL
+ Always null, since this information is not applied to parameter data types in PostgreSQL
@@ -3835,19 +3871,19 @@ ORDER BY c.ordinal_position;
collation_catalog
sql_identifier
- Applies to a feature not available in PostgreSQL
+ Always null, since this information is not applied to return data types in PostgreSQL
collation_schema
sql_identifier
- Applies to a feature not available in PostgreSQL
+ Always null, since this information is not applied to return data types in PostgreSQL
collation_name
sql_identifier
- Applies to a feature not available in PostgreSQL
+ Always null, since this information is not applied to return data types in PostgreSQL