private void rawSqlProcessExtend() {
for (DRawSqlMeta rawSqlMeta : rawSqlMetas.values()) {
String extend = rawSqlMeta.getExtend();
if (extend != null) {
DRawSqlMeta parentQuery = rawSqlMetas.get(extend);
if (parentQuery == null) {
throw new RuntimeException("parent query [" + extend + "] not found for sql-select " + rawSqlMeta.getName());
}
rawSqlMeta.extend(parentQuery);
}