Source:
public void executeDistributedQuery(QueryContext queryContext, Session session, LogicalPlan plan, String sql, String jsonExpr, SubmitQueryResponse.Builder responseBuilder) throws Exception { LogicalRootNode rootNode = plan.getRootBlock().getRoot(); TableDesc tableDesc = PlannerUtil.getTableDesc(catalog, plan.getRootBlock().getRoot()); if (tableDesc != null) { Tablespace space = TablespaceManager.get(tableDesc.getUri()).get(); FormatProperty formatProperty = space.getFormatProperty(tableDesc.getMeta()); if (!formatProperty.isInsertable()) { throw new VerifyException("Inserting into non-file storage is not supported."); } space.prepareTable(rootNode.getChild()); } context.getSystemMetrics().counter("Query", "numDMLQuery").inc(); hookManager.doHooks(queryContext, plan); QueryManager queryManager = this.context.getQueryJobManager(); QueryInfo queryInfo; queryInfo = queryManager.scheduleQuery(session, queryContext, sql, jsonExpr, rootNode); if(queryInfo == null) { responseBuilder.setQueryId(QueryIdFactory.NULL_QUERY_ID.getProto()); responseBuilder.setResultCode(ClientProtos.ResultCode.ERROR); responseBuilder.setErrorMessage("Fail starting QueryMaster."); LOG.error("Fail starting QueryMaster: " + sql); } else { responseBuilder.setIsForwarded(true); responseBuilder.setQueryId(queryInfo.getQueryId().getProto()); responseBuilder.setResultCode(ClientProtos.ResultCode.OK); if(queryInfo.getQueryMasterHost() != null) { responseBuilder.setQueryMasterHost(queryInfo.getQueryMasterHost()); } responseBuilder.setQueryMasterPort(queryInfo.getQueryMasterClientPort()); LOG.info("Query " + queryInfo.getQueryId().toString() + "," + queryInfo.getSql() + "," + " is forwarded to " + queryInfo.getQueryMasterHost() + ":" + queryInfo.getQueryMasterPort()); } }

Target:
public void executeDistributedQuery(QueryContext queryContext, Session session, LogicalPlan plan, String sql, String jsonExpr, SubmitQueryResponse.Builder responseBuilder) throws Exception { LogicalRootNode rootNode = plan.getRootBlock().getRoot(); TableDesc tableDesc = PlannerUtil.getTableDesc(catalog, plan.getRootBlock().getRoot()); if (tableDesc != null) { Tablespace space = TablespaceManager.get(tableDesc.getUri()).get(); FormatProperty formatProperty = space.getFormatProperty(tableDesc.getMeta()); if (!formatProperty.isInsertable()) { throw new VerifyException( String.format("%s tablespace does not allow INSERT operation.", tableDesc.getUri().toString())); } space.prepareTable(rootNode.getChild()); } context.getSystemMetrics().counter("Query", "numDMLQuery").inc(); hookManager.doHooks(queryContext, plan); QueryManager queryManager = this.context.getQueryJobManager(); QueryInfo queryInfo; queryInfo = queryManager.scheduleQuery(session, queryContext, sql, jsonExpr, rootNode); if(queryInfo == null) { responseBuilder.setQueryId(QueryIdFactory.NULL_QUERY_ID.getProto()); responseBuilder.setResultCode(ClientProtos.ResultCode.ERROR); responseBuilder.setErrorMessage("Fail starting QueryMaster."); LOG.error("Fail starting QueryMaster: " + sql); } else { responseBuilder.setIsForwarded(true); responseBuilder.setQueryId(queryInfo.getQueryId().getProto()); responseBuilder.setResultCode(ClientProtos.ResultCode.OK); if(queryInfo.getQueryMasterHost() != null) { responseBuilder.setQueryMasterHost(queryInfo.getQueryMasterHost()); } responseBuilder.setQueryMasterPort(queryInfo.getQueryMasterClientPort()); LOG.info("Query " + queryInfo.getQueryId().toString() + "," + queryInfo.getSql() + "," + " is forwarded to " + queryInfo.getQueryMasterHost() + ":" + queryInfo.getQueryMasterPort()); } }