Improved MonetDatabaseMetaData methods: - getNumericFunctions(): it now includes functions: code, space and sys.alpha - getNumericFunctions(): it no longer lists functions: not_uniques and rotate_xor_hash - getStringFunctions(): it now includes functions: json.isarray, json.isobject, json.isvalid, sys.reverse which accept a string value as argument - getStringFunctions(): it no longer lists functions: copyfrom, get_value_for, next_value_for, restart. - getSystemFunctions(): it now includes system functions: get_value_for, hash, next_value_for, sys.columnsize, sys.debug, sys.hashsize, sys.heapsize, sys.imprintsize, sys.isauuid, sys.md5, sys.newurl, sys.password_hash, isaurl - getSystemFunctions(): it no longer lists function: getlimit. Also some functions require the prefix "sys." or "json." when used from another working schema. This is now included in the names returned by methods getNumericFunctions(), getStringFunctions(), getSystemFunctions() and getTimeDateFunctions().