SnapshotData Struct Reference

#include <snapshot.h>

Data Fields
SnapshotType	snapshot_type
TransactionId	xmin
TransactionId	xmax
TransactionId *	xip
uint32	xcnt
TransactionId *	subxip
int32	subxcnt
bool	suboverflowed
bool	takenDuringRecovery
bool	copied
CommandId	curcid
uint32	speculativeToken
struct GlobalVisState *	vistest
uint32	active_count
uint32	regd_count
pairingheap_node	ph_node
TimestampTz	whenTaken
XLogRecPtr	lsn
uint64	snapXactCompletionCount

Detailed Description

Definition at line 142 of file snapshot.h.

Field Documentation

active_count

uint32 SnapshotData::active_count

Definition at line 204 of file snapshot.h.

Referenced by AtSubAbort_Snapshot(), CopySnapshot(), FreeSnapshot(), GetSnapshotData(), GetSnapshotDataReuse(), PopActiveSnapshot(), PushActiveSnapshotWithLevel(), ReorderBufferCopySnap(), RestoreSnapshot(), SnapBuildBuildSnapshot(), SnapBuildFreeSnapshot(), SnapBuildSnapDecRefcount(), SnapBuildSnapIncRefcount(), UnregisterSnapshotFromOwner(), and UpdateActiveSnapshotCommandId().

copied

bool SnapshotData::copied

Definition at line 185 of file snapshot.h.

Referenced by CopySnapshot(), FreeSnapshot(), GetSnapshotData(), GetSnapshotDataReuse(), PushActiveSnapshotWithLevel(), RegisterSnapshotOnOwner(), ReorderBufferCopySnap(), ReorderBufferFreeSnap(), ReorderBufferProcessTXN(), ReorderBufferRestoreChange(), ReorderBufferSaveTXNSnapshot(), ReorderBufferStreamTXN(), RestoreSnapshot(), SnapBuildBuildSnapshot(), SnapBuildFreeSnapshot(), and SnapBuildSnapDecRefcount().

curcid

CommandId SnapshotData::curcid

Definition at line 187 of file snapshot.h.

Referenced by GetSnapshotData(), GetSnapshotDataReuse(), HeapTupleSatisfiesHistoricMVCC(), HeapTupleSatisfiesMVCC(), ReorderBufferCopySnap(), ReorderBufferProcessTXN(), RestoreSnapshot(), SerializeSnapshot(), SnapBuildBuildSnapshot(), SnapBuildFreeSnapshot(), SnapBuildSnapDecRefcount(), SnapshotSetCommandId(), and UpdateActiveSnapshotCommandId().

lsn

XLogRecPtr SnapshotData::lsn

Definition at line 209 of file snapshot.h.

Referenced by GetOldestSnapshot(), GetSnapshotDataInitOldSnapshot(), init_toast_snapshot(), RestoreSnapshot(), and SerializeSnapshot().

ph_node

pairingheap_node SnapshotData::ph_node

Definition at line 206 of file snapshot.h.

Referenced by AtEOXact_Snapshot(), ExportSnapshot(), GetNonHistoricCatalogSnapshot(), GetTransactionSnapshot(), InvalidateCatalogSnapshot(), RegisterSnapshotOnOwner(), SetTransactionSnapshot(), and UnregisterSnapshotFromOwner().

regd_count

uint32 SnapshotData::regd_count

Definition at line 205 of file snapshot.h.

Referenced by AtEOXact_Snapshot(), AtSubAbort_Snapshot(), CopySnapshot(), ExportSnapshot(), FreeSnapshot(), GetSnapshotData(), GetSnapshotDataReuse(), GetTransactionSnapshot(), PopActiveSnapshot(), RegisterSnapshotOnOwner(), ReorderBufferCopySnap(), RestoreSnapshot(), SetTransactionSnapshot(), SnapBuildBuildSnapshot(), SnapBuildFreeSnapshot(), SnapBuildSnapDecRefcount(), UnregisterSnapshotFromOwner(), and UpdateActiveSnapshotCommandId().

snapshot_type

SnapshotType SnapshotData::snapshot_type

Definition at line 144 of file snapshot.h.

Referenced by EstimateSnapshotSpace(), HeapTupleSatisfiesVisibility(), ImportSnapshot(), RestoreSnapshot(), SnapBuildBuildSnapshot(), SnapBuildFreeSnapshot(), SnapBuildInitialSnapshot(), and SnapBuildSnapDecRefcount().

snapXactCompletionCount

uint64 SnapshotData::snapXactCompletionCount

Definition at line 216 of file snapshot.h.

Referenced by CopySnapshot(), GetSnapshotData(), GetSnapshotDataReuse(), RestoreSnapshot(), SetTransactionSnapshot(), and SnapBuildBuildSnapshot().

speculativeToken

uint32 SnapshotData::speculativeToken

Definition at line 193 of file snapshot.h.

Referenced by _bt_check_unique(), check_exclusion_or_unique_constraint(), and HeapTupleSatisfiesDirty().

suboverflowed

bool SnapshotData::suboverflowed

Definition at line 182 of file snapshot.h.

Referenced by CopySnapshot(), EstimateSnapshotSpace(), ExportSnapshot(), GetSnapshotData(), ImportSnapshot(), RestoreSnapshot(), SerializeSnapshot(), SetTransactionSnapshot(), SnapBuildBuildSnapshot(), SnapBuildFreeSnapshot(), SnapBuildSnapDecRefcount(), and XidInMVCCSnapshot().

subxcnt

int32 SnapshotData::subxcnt

Definition at line 181 of file snapshot.h.

Referenced by CopySnapshot(), EstimateSnapshotSpace(), ExportSnapshot(), GetSnapshotData(), HeapTupleSatisfiesHistoricMVCC(), ImportSnapshot(), ReorderBufferChangeSize(), ReorderBufferCopySnap(), ReorderBufferRestoreChange(), ReorderBufferSerializeChange(), RestoreSnapshot(), SerializeSnapshot(), SetTransactionSnapshot(), SnapBuildBuildSnapshot(), UpdateLogicalMappings(), and XidInMVCCSnapshot().

subxip

TransactionId* SnapshotData::subxip

Definition at line 180 of file snapshot.h.

Referenced by CopySnapshot(), ExportSnapshot(), GetSnapshotData(), HeapTupleSatisfiesHistoricMVCC(), ImportSnapshot(), ReorderBufferCopySnap(), ReorderBufferRestoreChange(), ReorderBufferSerializeChange(), RestoreSnapshot(), SerializeSnapshot(), SetTransactionSnapshot(), SnapBuildBuildSnapshot(), UpdateLogicalMappings(), and XidInMVCCSnapshot().

takenDuringRecovery

bool SnapshotData::takenDuringRecovery

Definition at line 184 of file snapshot.h.

Referenced by CopySnapshot(), EstimateSnapshotSpace(), ExportSnapshot(), GetSnapshotData(), heapam_scan_sample_next_tuple(), heapgetpage(), ImportSnapshot(), RestoreSnapshot(), SerializeSnapshot(), SetTransactionSnapshot(), SnapBuildBuildSnapshot(), SnapBuildFreeSnapshot(), SnapBuildSnapDecRefcount(), and XidInMVCCSnapshot().

vistest

struct GlobalVisState* SnapshotData::vistest

Definition at line 199 of file snapshot.h.

Referenced by HeapTupleSatisfiesNonVacuumable().

whenTaken

TimestampTz SnapshotData::whenTaken

Definition at line 208 of file snapshot.h.

Referenced by GetSnapshotDataInitOldSnapshot(), init_toast_snapshot(), RestoreSnapshot(), and SerializeSnapshot().

xcnt

uint32 SnapshotData::xcnt

Definition at line 169 of file snapshot.h.

Referenced by CopySnapshot(), EstimateSnapshotSpace(), ExportSnapshot(), GetSnapshotData(), HeapTupleSatisfiesHistoricMVCC(), ImportSnapshot(), ReorderBufferChangeSize(), ReorderBufferCopySnap(), ReorderBufferRestoreChange(), ReorderBufferSerializeChange(), RestoreSnapshot(), SerializeSnapshot(), SetTransactionSnapshot(), SnapBuildBuildSnapshot(), SnapBuildExportSnapshot(), SnapBuildInitialSnapshot(), XidInMVCCSnapshot(), and XidIsConcurrent().

xip

TransactionId* SnapshotData::xip

Definition at line 168 of file snapshot.h.

Referenced by CopySnapshot(), ExportSnapshot(), GetSnapshotData(), HeapTupleSatisfiesHistoricMVCC(), ImportSnapshot(), ReorderBufferCopySnap(), ReorderBufferRestoreChange(), ReorderBufferSerializeChange(), RestoreSnapshot(), SerializeSnapshot(), SetTransactionSnapshot(), SnapBuildBuildSnapshot(), SnapBuildInitialSnapshot(), XidInMVCCSnapshot(), and XidIsConcurrent().

xmax

TransactionId SnapshotData::xmax

Definition at line 158 of file snapshot.h.

Referenced by _bt_check_unique(), check_exclusion_or_unique_constraint(), ExportSnapshot(), GetSnapshotData(), heapam_tuple_lock(), HeapTupleSatisfiesDirty(), HeapTupleSatisfiesHistoricMVCC(), ImportSnapshot(), RelationFindReplTupleByIndex(), RelationFindReplTupleSeq(), RestoreSnapshot(), SerializeSnapshot(), SetTransactionSnapshot(), SnapBuildBuildSnapshot(), SnapBuildInitialSnapshot(), XidInMVCCSnapshot(), and XidIsConcurrent().

xmin

TransactionId SnapshotData::xmin

Definition at line 157 of file snapshot.h.

Referenced by _bt_check_unique(), ATExecDetachPartitionFinalize(), bt_check_every_level(), check_exclusion_or_unique_constraint(), DefineIndex(), ExportSnapshot(), GetSerializableTransactionSnapshotInt(), GetSnapshotData(), GetSnapshotDataInitOldSnapshot(), GetSnapshotDataReuse(), heapam_tuple_lock(), HeapTupleSatisfiesDirty(), HeapTupleSatisfiesHistoricMVCC(), ImportSnapshot(), ReindexRelationConcurrently(), RelationFindReplTupleByIndex(), RelationFindReplTupleSeq(), ReorderBufferGetOldestXmin(), RestoreSnapshot(), SerializeSnapshot(), SetTransactionSnapshot(), SnapBuildBuildSnapshot(), SnapBuildInitialSnapshot(), SnapshotResetXmin(), spgvacuumscan(), verify_heapam(), XidInMVCCSnapshot(), XidIsConcurrent(), and xmin_cmp().

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The documentation for this struct was generated from the following file:

• src/include/utils/snapshot.h