Add a few more keywords.

pgsql.nanorc

@@ -19,7 +19,7 @@ color brightyellow "\<(class|new|private|public|function|for|foreach|if|while|do
 color magenta "\<(raise|exception|notice|return)\>"
 
 # SQL Keywords
-color blue "(ABORT|AGGREGATE|ALTER|ANALYZE|AS|AUTHORIZATION|BEGIN|CAST|CHECKPOINT|CLASS|CLOSE|CLUSTER|COLLATION|COMMENT|COMMIT|CONFIGURATION|CONSTRAINTS|CONVERSION|COPY|CREATE|DATA|DATABASE|DEALLOCATE|DECLARE|DEFAULT|DELETE|DICTIONARY|DISCARD|DO|DROP|END|EVENT|EXECUTE|EXPLAIN|EXTENSION|FAMILY|FETCH|FOREIGN|FUNCTION|GRANT|GROUP|INDEX|INSERT|INTO|LABEL|LANGUAGE|LARGE|LOAD|LOCK|MATERIALIZED|MOVE|NOTIFY|OBJECT|OPERATOR|OWNED|PARSER|PREPARE|PREPARED|PRIVILEGES|REASSIGN|REFRESH|RELEASE|RESET|REVOKE|ROLE|ROLLBACK|RULE|SAVEPOINT|SCHEMA|SEARCH|SECURITY|SELECT|SEQUENCE|SERVER|SESSION|SET|SHOW|SPACE|START|SYSTEM|TABLE|TEXT|TO|TRANSACTION|TYPE|UPDATE|USER|VACUUM|VALUES|VIEW|WITH|WRAPPER)"
+color blue "(ABORT|AGGREGATE|ALTER|ANALYZE|AS|AUTHORIZATION|BEGIN|CAST|CHECKPOINT|CLASS|CLOSE|CLUSTER|COLLATION|COMMENT|COMMIT|CONFIGURATION|CONSTRAINTS|CONVERSION|COPY|CREATE|DATA|DATABASE|DEALLOCATE|DECLARE|DEFAULT|DELETE|DICTIONARY|DISCARD|DO|DROP|END|EVENT|EXECUTE|EXPLAIN|EXTENSION|FAMILY|FETCH|FOREIGN|FUNCTION|GRANT|GROUP|INDEX|INSERT|INTO|LABEL|LANGUAGE|LARGE|LOAD|LOCK|MAPPING FOR|MATERIALIZED|MOVE|NOTIFY|OBJECT|OPERATOR|OPTIONS|OWNED|PARSER|PREPARE|PREPARED|PRIVILEGES|REASSIGN|REFRESH|RELEASE|RESET|REVOKE|ROLE|ROLLBACK|RULE|SAVEPOINT|SCHEMA|SEARCH|SECURITY|SELECT|SEQUENCE|SERVER|SESSION|SET|SHOW|SPACE|START|SYSTEM|TABLE|TEXT|TO|TRANSACTION|TYPE|UPDATE|USER|VACUUM|VALUES|VIEW|WITH|WRAPPER)"
 
 # Strings.
 color brightyellow "<[^=       ]*>" ""(\.|[^"])*""