[ntuple] reset page source's structure buffer

jblomer · jblomer · commit 3088d07fe719 · 2026-06-22T20:20:22.000+02:00
diff --git a/tree/ntuple/src/RPageStorage.cxx b/tree/ntuple/src/RPageStorage.cxx
@@ -227,8 +227,10 @@ void ROOT::Internal::RPageSource::LoadStructure()
 void ROOT::Internal::RPageSource::Attach(RNTupleSerializer::EDescriptorDeserializeMode mode)
 {
    LoadStructure();
-   if (!fIsAttached)
+   if (!fIsAttached) {
       GetExclDescriptorGuard().MoveIn(AttachImpl(mode));
+      fStructureBuffer.Reset();
+   }
    fIsAttached = true;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -227,8 +227,10 @@ void ROOT::Internal::RPageSource::LoadStructure()`
`227`	`227`	`void ROOT::Internal::RPageSource::Attach(RNTupleSerializer::EDescriptorDeserializeMode mode)`
`228`	`228`	`{`
`229`	`229`	`LoadStructure();`
`230`		`- if (!fIsAttached)`
	`230`	`+ if (!fIsAttached) {`
`231`	`231`	`GetExclDescriptorGuard().MoveIn(AttachImpl(mode));`
	`232`	`+ fStructureBuffer.Reset();`
	`233`	`+ }`
`232`	`234`	`fIsAttached = true;`
`233`	`235`	`}`
`234`	`236`