code: private static Schema schema(SearchKeyType keyType) {
  		Schema sch = new Schema();
  		for (int i = 0; i < keyType.length(); i++)
  			sch.addField(keyFieldName(i), keyType.get(i));
  		sch.addField(SCHEMA_RID_BLOCK, BIGINT);
  		sch.addField(SCHEMA_RID_ID, INTEGER);
  		return sch;
  	}
docs: Returns the schema of the index records.
  
  @param fldType
  the type of the indexed field
  
  @return the schema of the index records