public getTableDescriptorsByPattern_args setIncludeSysTables(boolean includeSysTables) {
      this.includeSysTables = includeSysTables;
      setIncludeSysTablesIsSet(true);
      return this;
    }
set to false if match only against userspace tables
hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/THBaseService.java