docs: protected CheckSchemaOperation createCheckSchemaOperation() {
          InputStream in = org.apache.jackrabbit.core.journal.DatabaseJournal.class.getResourceAsStream(databaseType + ".ddl");
          return new CheckSchemaOperation(conHelper, in, schemaObjectPrefix + DEFAULT_JOURNAL_TABLE).addVariableReplacement(
              CheckSchemaOperation.SCHEMA_OBJECT_PREFIX_VARIABLE, schemaObjectPrefix);
      }