}
Table newTable = desc.getNewDefinition();
if(newTable != null) {
AISInvariants.checkJoinTo(newTable.getParentJoin(), newName, false);
if(newTable.getColumns().isEmpty()) {
throw new NoColumnsInTableException(newName);
}
}
schemas.add(oldName.getSchemaName());
schemas.add(newName.getSchemaName());
tableIDs.add(oldAIS.getTable(oldName).getTableId());