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branch-3.0: [fix](Export) Clone SessionVariable for each ExportTaskExecutor #48239 #48254

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branch-3.0: [fix](Export) Clone SessionVariable for each ExportTaskExecutor #48239 #48254

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3 changes: 2 additions & 1 deletion fe/fe-core/src/main/java/org/apache/doris/load/ExportTaskExecutor.java
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,7 @@
import org.apache.doris.qe.ConnectContext;
import org.apache.doris.qe.QueryState.MysqlStateType;
import org.apache.doris.qe.StmtExecutor;
import org.apache.doris.qe.VariableMgr;
import org.apache.doris.scheduler.exception.JobException;
import org.apache.doris.scheduler.executor.TransientTaskExecutor;
import org.apache.doris.thrift.TStatusCode;
Expand Down Expand Up @@ -199,7 +200,7 @@ public void cancel() throws JobException {
private AutoCloseConnectContext buildConnectContext() {
ConnectContext connectContext = new ConnectContext();
exportJob.getSessionVariables().setQueryTimeoutS(exportJob.getTimeoutSecond());
connectContext.setSessionVariable(exportJob.getSessionVariables());
connectContext.setSessionVariable(VariableMgr.cloneSessionVariable(exportJob.getSessionVariables()));
// The rollback to the old optimizer is prohibited
// Since originStmt is empty, reverting to the old optimizer when the new optimizer is enabled is meaningless.
connectContext.setEnv(Env.getCurrentEnv());
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