flaky test TestAnalyzePartitionTableWithDynamicMode

[lcwangchao]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

--- FAIL: TestAnalyzePartitionTableWithDynamicMode (0.94s)
panic: runtime error: invalid memory address or nil pointer dereference [recovered]
	panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x140006a39c0 addr=0x104f75280 pc=0x106ef1668]

goroutine 98 [running]:
testing.tRunner.func1.2({0x108cb64c0, 0x10b821be0})
	/Users/wangchao/.gvm/gos/go1.21.0/src/testing/testing.go:1545 +0x1c8
testing.tRunner.func1()
	/Users/wangchao/.gvm/gos/go1.21.0/src/testing/testing.go:1548 +0x360
panic({0x108cb64c0?, 0x10b821be0?})
	/Users/wangchao/.gvm/gos/go1.21.0/src/runtime/panic.go:914 +0x218
github.com/pingcap/tidb/pkg/statistics/handle/storage.loadNeededColumnHistograms({0x109405bc8, 0x140003c5680}, {0x1093b8c00, 0x1400b968300}, {0x68, 0x1, 0x0, 0x1}, 0x0)
	/Users/wangchao/Code/pingcap/tidb/pkg/statistics/handle/storage/read.go:647 +0x3f8
github.com/pingcap/tidb/pkg/statistics/handle/storage.LoadNeededHistograms({0x109405bc8, 0x140003c5680}, {0x1093b8c00, 0x1400b968300}, 0x0?)
	/Users/wangchao/Code/pingcap/tidb/pkg/statistics/handle/storage/read.go:550 +0xb0
github.com/pingcap/tidb/pkg/statistics/handle/storage.(*statsReadWriter).LoadNeededHistograms.func1({0x109405bc8, 0x140003c5680})
	/Users/wangchao/Code/pingcap/tidb/pkg/statistics/handle/storage/stats_read_writer.go:336 +0x70
github.com/pingcap/tidb/pkg/statistics/handle/util.WrapTxn({0x109405bc8, 0x140003c5680}, 0x140006a5bc8)
	/Users/wangchao/Code/pingcap/tidb/pkg/statistics/handle/util/util.go:185 +0xb8
github.com/pingcap/tidb/pkg/statistics/handle/util.CallWithSCtx({0x10936e320, 0x140094553e0}, 0x140006a5bc8, {0x140006a5bc0, 0x1, 0x0?})
	/Users/wangchao/Code/pingcap/tidb/pkg/statistics/handle/util/util.go:101 +0x150
github.com/pingcap/tidb/pkg/statistics/handle/storage.(*statsReadWriter).LoadNeededHistograms(0x1400ae004d0)
	/Users/wangchao/Code/pingcap/tidb/pkg/statistics/handle/storage/stats_read_writer.go:334 +0x6c
github.com/pingcap/tidb/pkg/executor/test/analyzetest.TestAnalyzePartitionTableWithDynamicMode(0x140000adf98?)
	/Users/wangchao/Code/pingcap/tidb/pkg/executor/test/analyzetest/analyze_test.go:2221 +0x4d8
testing.tRunner(0x14000683a00, 0x109344c60)
	/Users/wangchao/.gvm/gos/go1.21.0/src/testing/testing.go:1595 +0xe8
created by testing.(*T).Run in goroutine 1
	/Users/wangchao/.gvm/gos/go1.21.0/src/testing/testing.go:1648 +0x33c
run all tasks takes 9m45.632587833s
make: *** [ut] Error 1

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

3. What did you see instead (Required)

4. What is your TiDB version? (Required)

[Rustin170506]

Fixed by 740664f#diff-e26e478bcb0a0576b92a1be23169fb4f02e64d962f93e6657f5b45948abe5094

[D3Hunter]

met again https://do.pingcap.net/jenkins/blue/organizations/jenkins/pingcap%2Ftidb%2Fghpr_unit_test/detail/ghpr_unit_test/6809/pipeline/