flaky test TestCTEIterationMemTracker

[hawkingrei]

Bug Report

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1. Minimal reproduce step (Required)

2. What did you expect to see? (Required)

3. What did you see instead (Required)

    testkit.go:274: 
        	Error Trace:	pkg/testkit/testkit.go:274
        	            				pkg/testkit/testkit.go:199
        	            				pkg/testkit/testkit.go:174
        	            				pkg/executor/cte_test.go:227
        	Error:      	Received unexpected error:
        	            	assert row container spill disk failed
        	            	github.com/pingcap/tidb/pkg/util.GetRecoverError
        	            		pkg/util/util.go:305
        	            	github.com/pingcap/tidb/pkg/executor.(*cteProducer).computeRecursivePart.func1
        	            		pkg/executor/cte.go:416
        	            	runtime.gopanic
        	            		GOROOT/src/runtime/panic.go:914
        	            	github.com/pingcap/tidb/pkg/executor.(*cteProducer).computeRecursivePart
        	            		pkg/executor/cte.go:450
        	            	github.com/pingcap/tidb/pkg/executor.(*cteProducer).produce
        	            		pkg/executor/cte.go:366
        	            	github.com/pingcap/tidb/pkg/executor.(*CTEExec).Next
        	            		pkg/executor/cte.go:113
        	            	github.com/pingcap/tidb/pkg/executor/internal/exec.Next
        	            		pkg/executor/internal/exec/executor.go:410
        	            	github.com/pingcap/tidb/pkg/executor.(*ExplainExec).executeAnalyzeExec
        	            		pkg/executor/explain.go:130
        	            	github.com/pingcap/tidb/pkg/executor.(*ExplainExec).generateExplainInfo
        	            		pkg/executor/explain.go:149
        	            	github.com/pingcap/tidb/pkg/executor.(*ExplainExec).Next
        	            		pkg/executor/explain.go:76
        	            	github.com/pingcap/tidb/pkg/executor/internal/exec.Next
        	            		pkg/executor/internal/exec/executor.go:410
        	            	github.com/pingcap/tidb/pkg/executor.(*ExecStmt).next
        	            		pkg/executor/adapter.go:1250
        	            	github.com/pingcap/tidb/pkg/executor.(*recordSet).Next
        	            		pkg/executor/adapter.go:175
        	            	github.com/pingcap/tidb/pkg/session.GetRows4Test
        	            		pkg/session/tidb.go:346
        	            	github.com/pingcap/tidb/pkg/session.ResultSetToStringSlice
        	            		pkg/session/tidb.go:364
        	            	github.com/pingcap/tidb/pkg/testkit.(*TestKit).ResultSetToResultWithCtx
        	            		pkg/testkit/testkit.go:273
        	            	github.com/pingcap/tidb/pkg/testkit.(*TestKit).MustQueryWithContext
        	            		pkg/testkit/testkit.go:199
        	            	github.com/pingcap/tidb/pkg/testkit.(*TestKit).MustQuery
        	            		pkg/testkit/testkit.go:174
        	            	github.com/pingcap/tidb/pkg/executor_test.TestCTEIterationMemTracker
        	            		pkg/executor/cte_test.go:227
        	            	testing.tRunner
        	            		GOROOT/src/testing/testing.go:1595
        	            	runtime.goexit
        	            		src/runtime/asm_amd64.s:1650
        	Test:       	TestCTEIterationMemTracker
        	Messages:   	sql:explain analyze with recursive cte1 as (select c1 from t1 union all select c1 + 1 c1 from cte1 where c1 < 5000) select * from cte1, args:[]

4. What is your TiDB version? (Required)