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assertion HashCode should not change after ReHashCode is called #64156

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#64298
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assertion HashCode should not change after ReHashCode is called#64156
#64298
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component/testseverity/moderatesig/plannerSIG: Plannertype/bugThe issue is confirmed as a bug.
@hawkingrei

Description

@hawkingrei
hawkingrei
opened on Oct 28, 2025

Bug Report

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1. Minimal reproduce step (Required)

run TestInstancePlanCacheConcurrencyComp

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

3. What did you see instead (Required)

panic: assert failed, HashCode should not change after ReHashCode is called [recovered]
	panic: assert failed, HashCode should not change after ReHashCode is called
goroutine 2120 [running]:
github.com/pingcap/tidb/pkg/executor.(*Compiler).Compile.func1()
	pkg/executor/compiler.go:64 +0x4e8
panic({0x7d11480?, 0xc00f36cbb0?})
	GOROOT/src/runtime/panic.go:791 +0x132
github.com/pingcap/tidb/pkg/util/intest.doPanic(...)
	pkg/util/intest/assert_common.go:58
github.com/pingcap/tidb/pkg/util/intest.doAssert(...)
	pkg/util/intest/assert_common.go:30
github.com/pingcap/tidb/pkg/util/intest.Assert(...)
	pkg/util/intest/assert.go:25
github.com/pingcap/tidb/pkg/expression.assertCheckHashCode(0xc006485650)
	pkg/expression/scalar_function.go:408 +0x2d4
github.com/pingcap/tidb/pkg/expression.(*ScalarFunction).Equal(0xc006485650, {0x931a940, 0xc00120f540}, {0x936f5e0?, 0xc0064856c0})
	pkg/expression/scalar_function.go:395 +0x225
github.com/pingcap/tidb/pkg/util/ranger.removeConditions.Contains.func1({0x936f5e0?, 0xc006485650?})
	pkg/expression/util.go:1144 +0xbc
slices.IndexFunc[...](...)
	GOROOT/src/slices/slices.go:109
slices.ContainsFunc[...]({0xc00f376420?, 0x2, 0x10}, 0xc00f367cb0?)
	GOROOT/src/slices/slices.go:124 +0x5f
github.com/pingcap/tidb/pkg/expression.Contains(...)
	pkg/expression/util.go:1140
github.com/pingcap/tidb/pkg/util/ranger.removeConditions({0x931a940, 0xc00120f540}, {0xc00f376440, 0x2, 0x2?}, {0xc00f376420, 0x2, 0x2})
	pkg/util/ranger/detacher.go:1136 +0x1d4
github.com/pingcap/tidb/pkg/util/ranger.ExtractEqAndInCondition(0xc00f362e00, {0xc002e329e0, 0x2, 0x2}, {0xc00723e620, 0x2, 0x2}, {0xc00f354fc0, 0x2, 0x2})
	pkg/util/ranger/detacher.go:840 +0x17c5
github.com/pingcap/tidb/pkg/util/ranger.(*rangeDetacher).detachCNFCondAndBuildRangeForIndex(0xc0015b0cd0, {0xc002e329e0, 0x2, 0x2}, {0xc00f36cb50, 0x2, 0x2}, 0x1)
	pkg/util/ranger/detacher.go:405 +0x105
github.com/pingcap/tidb/pkg/util/ranger.(*rangeDetacher).detachCondAndBuildRangeForCols(0xc0015b0cd0)
	pkg/util/ranger/detacher.go:1107 +0x3d5
github.com/pingcap/tidb/pkg/util/ranger.DetachCondAndBuildRangeForIndex(0xc0015b0f50?, {0xc002e329e0?, 0x4?, 0xc00f351e91?}, {0xc00723e620?, 0xc009734fea?, 0x2?}, {0xc00f354fc0, 0x2, 0x2}, ...)
	pkg/util/ranger/detacher.go:1042 +0xf0
github.com/pingcap/tidb/pkg/planner/core.buildRangeForIndexScan({0x932b970?, 0xc0016c0a10?}, 0xc00f3566c8)
	pkg/planner/core/plan_cache_rebuild.go:421 +0x167
github.com/pingcap/tidb/pkg/planner/core.rebuildRange({0x92fcb40, 0xc00f3566c8})
	pkg/planner/core/plan_cache_rebuild.go:105 +0x5b8
github.com/pingcap/tidb/pkg/planner/core.rebuildRange({0x92fddc0, 0xc00f37a900})
	pkg/planner/core/plan_cache_rebuild.go:115 +0x8e7
github.com/pingcap/tidb/pkg/planner/core.RebuildPlan4CachedPlan({0x92fddc0, 0xc00f37a900})
	pkg/planner/core/plan_cache_rebuild.go:38 +0xb7
github.com/pingcap/tidb/pkg/planner/core.adjustCachedPlan({0x92c9390, 0xdb1e160}, {0x937ce00, 0xc008d6fb88}, {0x92fddc0, 0xc00f37a900}, 0xc006485ce0, 0x0, 0x0, {0x0, ...}, ...)
	pkg/planner/core/plan_cache.go:318 +0x13f
github.com/pingcap/tidb/pkg/planner/core.GetPlanFromPlanCache({0x92c9390, 0xdb1e160}, {0x937ce00, 0xc008d6fb88}, 0x0, {0x932e8b0, 0xc0101f5b00}, 0xc00f37c600, {0xc00f376380, 0x2, ...})
	pkg/planner/core/plan_cache.go:241 +0x5e5
github.com/pingcap/tidb/pkg/planner.OptimizeExecStmt({0x92c9390, 0xdb1e160}, {0x937ce00, 0xc008d6fb88}, 0xc0015b16c0, {0x932e8b0, 0xc0101f5b00})
	pkg/planner/optimize.go:536 +0x545
github.com/pingcap/tidb/pkg/planner.Optimize({0x92c9390, 0xdb1e160}, {0x937ce00, 0xc008d6fb88}, 0xc0015b16c0, {0x932e8b0, 0xc0101f5b00})
	pkg/planner/optimize.go:184 +0x2bf
github.com/pingcap/tidb/pkg/executor.(*Compiler).Compile(0xc0015b19f8, {0x92c9390?, 0xdb1e160?}, {0x92ed9e0, 0xc010a863c0})
	pkg/executor/compiler.go:107 +0x6e5
github.com/pingcap/tidb/pkg/session.(*session).ExecuteStmt(0xc008d6fb88, {0x92c9390?, 0xdb1e160?}, {0x92ed9e0, 0xc010a863c0})
	pkg/session/session.go:2205 +0xe1d
github.com/pingcap/tidb/pkg/testkit.(*TestKit).ExecWithContext(0xc002d16700, {0x92c9390, 0xdb1e160}, {0x888ea6e, 0x19}, {0x0, 0x0, 0x0})
	pkg/testkit/testkit.go:421 +0x1086
github.com/pingcap/tidb/pkg/testkit.(*TestKit).MustQueryWithContext(0xc002d16700, {0x92c9390, 0xdb1e160}, {0x888ea6e, 0x19}, {0x0, 0x0, 0x0})
	pkg/testkit/testkit.go:251 +0x26a
github.com/pingcap/tidb/pkg/testkit.(*TestKit).MustQuery(0xc002d16700, {0x888ea6e, 0x19}, {0x0, 0x0, 0x0})
	pkg/testkit/testkit.go:186 +0x106
pkg/planner/core/casetest/instanceplancache/instanceplancache_test.(*worker).run(0xc00664a360)
	pkg/planner/core/casetest/instanceplancache/concurrency_test.go:82 +0x60c
created by pkg/planner/core/casetest/instanceplancache/instanceplancache_test.testWithWorkers in goroutine 84
	pkg/planner/core/casetest/instanceplancache/concurrency_test.go:110 +0x365
panic: assert failed, HashCode should not change after ReHashCode is called [recovered]
	panic: assert failed, HashCode should not change after ReHashCode is called
goroutine 2119 [running]:
github.com/pingcap/tidb/pkg/executor.(*Compiler).Compile.func1()
	pkg/executor/compiler.go:64 +0x4e8
panic({0x7d11480?, 0xc00f4ffa20?})
	GOROOT/src/runtime/panic.go:791 +0x132
github.com/pingcap/tidb/pkg/util/intest.doPanic(...)
	pkg/util/intest/assert_common.go:58
github.com/pingcap/tidb/pkg/util/intest.doAssert(...)
	pkg/util/intest/assert_common.go:30
github.com/pingcap/tidb/pkg/util/intest.Assert(...)
	pkg/util/intest/assert.go:25
github.com/pingcap/tidb/pkg/expression.assertCheckHashCode(0xc006485650)
	pkg/expression/scalar_function.go:408 +0x2d4
github.com/pingcap/tidb/pkg/expression.(*ScalarFunction).Equal(0xc006485650, {0x931a940, 0xc00120f040}, {0x936f5e0?, 0xc0064856c0})
	pkg/expression/scalar_function.go:395 +0x225
github.com/pingcap/tidb/pkg/util/ranger.removeConditions.Contains.func1({0x936f5e0?, 0xc006485650?})
	pkg/expression/util.go:1144 +0xbc
slices.IndexFunc[...](...)
	GOROOT/src/slices/slices.go:109
slices.ContainsFunc[...]({0xc00ff3a2c0?, 0x2, 0x10}, 0xc00ff32d50?)
	GOROOT/src/slices/slices.go:124 +0x5f
github.com/pingcap/tidb/pkg/expression.Contains(...)
	pkg/expression/util.go:1140
github.com/pingcap/tidb/pkg/util/ranger.removeConditions({0x931a940, 0xc00120f040}, {0xc00ff3a2e0, 0x2, 0x2?}, {0xc00ff3a2c0, 0x2, 0x2})
	pkg/util/ranger/detacher.go:1136 +0x1d4
github.com/pingcap/tidb/pkg/util/ranger.ExtractEqAndInCondition(0xc00ff29180, {0xc002e329e0, 0x2, 0x2}, {0xc00723e620, 0x2, 0x2}, {0xc00ff1c760, 0x2, 0x2})
	pkg/util/ranger/detacher.go:840 +0x17c5
github.com/pingcap/tidb/pkg/util/ranger.(*rangeDetacher).detachCNFCondAndBuildRangeForIndex(0xc001e6ecd0, {0xc002e329e0, 0x2, 0x2}, {0xc00f4ff9c0, 0x2, 0x2}, 0x1)
	pkg/util/ranger/detacher.go:405 +0x105
github.com/pingcap/tidb/pkg/util/ranger.(*rangeDetacher).detachCondAndBuildRangeForCols(0xc001e6ecd0)
	pkg/util/ranger/detacher.go:1107 +0x3d5
github.com/pingcap/tidb/pkg/util/ranger.DetachCondAndBuildRangeForIndex(0xc001e6ef50?, {0xc002e329e0?, 0x4?, 0xc00ff26d11?}, {0xc00723e620?, 0xc009734fea?, 0x2?}, {0xc00ff1c760, 0x2, 0x2}, ...)
	pkg/util/ranger/detacher.go:1042 +0xf0
github.com/pingcap/tidb/pkg/planner/core.buildRangeForIndexScan({0x932b970?, 0xc001c1bc90?}, 0xc00f06f208)
	pkg/planner/core/plan_cache_rebuild.go:421 +0x167
github.com/pingcap/tidb/pkg/planner/core.rebuildRange({0x92fcb40, 0xc00f06f208})
	pkg/planner/core/plan_cache_rebuild.go:105 +0x5b8
github.com/pingcap/tidb/pkg/planner/core.rebuildRange({0x92fddc0, 0xc00ff366c0})
	pkg/planner/core/plan_cache_rebuild.go:115 +0x8e7
github.com/pingcap/tidb/pkg/planner/core.RebuildPlan4CachedPlan({0x92fddc0, 0xc00ff366c0})
	pkg/planner/core/plan_cache_rebuild.go:38 +0xb7
github.com/pingcap/tidb/pkg/planner/core.adjustCachedPlan({0x92c9390, 0xdb1e160}, {0x937ce00, 0xc008d6f8c8}, {0x92fddc0, 0xc00ff366c0}, 0xc006485ce0, 0x0, 0x0, {0x0, ...}, ...)
	pkg/planner/core/plan_cache.go:318 +0x13f
github.com/pingcap/tidb/pkg/planner/core.GetPlanFromPlanCache({0x92c9390, 0xdb1e160}, {0x937ce00, 0xc008d6f8c8}, 0x0, {0x932e8b0, 0xc010798c60}, 0xc00ff1ad80, {0xc00ff3a220, 0x2, ...})
	pkg/planner/core/plan_cache.go:241 +0x5e5
github.com/pingcap/tidb/pkg/planner.OptimizeExecStmt({0x92c9390, 0xdb1e160}, {0x937ce00, 0xc008d6f8c8}, 0xc001e6f6c0, {0x932e8b0, 0xc010798c60})
	pkg/planner/optimize.go:536 +0x545
github.com/pingcap/tidb/pkg/planner.Optimize({0x92c9390, 0xdb1e160}, {0x937ce00, 0xc008d6f8c8}, 0xc001e6f6c0, {0x932e8b0, 0xc010798c60})
	pkg/planner/optimize.go:184 +0x2bf
github.com/pingcap/tidb/pkg/executor.(*Compiler).Compile(0xc001e6f9f8, {0x92c9390?, 0xdb1e160?}, {0x92ed9e0, 0xc00f4efea0})
	pkg/executor/compiler.go:107 +0x6e5
github.com/pingcap/tidb/pkg/session.(*session).ExecuteStmt(0xc008d6f8c8, {0x92c9390?, 0xdb1e160?}, {0x92ed9e0, 0xc00f4efea0})
	pkg/session/session.go:2205 +0xe1d
github.com/pingcap/tidb/pkg/testkit.(*TestKit).ExecWithContext(0xc00116ff10, {0x92c9390, 0xdb1e160}, {0x888ea6e, 0x19}, {0x0, 0x0, 0x0})
	pkg/testkit/testkit.go:421 +0x1086
github.com/pingcap/tidb/pkg/testkit.(*TestKit).MustQueryWithContext(0xc00116ff10, {0x92c9390, 0xdb1e160}, {0x888ea6e, 0x19}, {0x0, 0x0, 0x0})
	pkg/testkit/testkit.go:251 +0x26a
github.com/pingcap/tidb/pkg/testkit.(*TestKit).MustQuery(0xc00116ff10, {0x888ea6e, 0x19}, {0x0, 0x0, 0x0})
	pkg/testkit/testkit.go:186 +0x106
pkg/planner/core/casetest/instanceplancache/instanceplancache_test.(*worker).run(0xc00664a330)
	pkg/planner/core/casetest/instanceplancache/concurrency_test.go:82 +0x60c
created by pkg/planner/core/casetest/instanceplancache/instanceplancache_test.testWithWorkers in goroutine 84
	pkg/planner/core/casetest/instanceplancache/concurrency_test.go:110 +0x365

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