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Add inline function 'table_scan_flags' for table AM to get the flags. #395

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Merged
HuSen8891 merged 1 commit into from
Mar 14, 2024
Merged

Add inline function 'table_scan_flags' for table AM to get the flags. #395

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2 changes: 1 addition & 1 deletion src/backend/access/aocs/aocsam_handler.c
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Original file line number Diff line number Diff line change
Expand Up @@ -757,7 +757,7 @@ aoco_getnextslot(TableScanDesc scan, ScanDirection direction, TupleTableSlot *sl
return false;
}

static int
static uint32
aoco_scan_flags(Relation rel)
{
return 0;
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2 changes: 1 addition & 1 deletion src/backend/access/appendonly/appendonlyam.c
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Expand Up @@ -1799,7 +1799,7 @@ appendonly_getnextslot(TableScanDesc scan, ScanDirection direction, TupleTableSl
return false;
}

int
uint32
appendonly_scan_flags(Relation relation)
{
return 0;
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2 changes: 1 addition & 1 deletion src/backend/access/heap/heapam.c
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Expand Up @@ -1621,7 +1621,7 @@ heap_getnextslot_tidrange(TableScanDesc sscan, ScanDirection direction,
return true;
}

int
uint32
heap_scan_flags(Relation relation)
{
return 0;
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2 changes: 1 addition & 1 deletion src/include/access/heapam.h
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Expand Up @@ -135,7 +135,7 @@ extern void heap_set_tidrange(TableScanDesc sscan, ItemPointer mintid,
extern bool heap_getnextslot_tidrange(TableScanDesc sscan,
ScanDirection direction,
TupleTableSlot *slot);
extern int heap_scan_flags(Relation relation);
extern uint32 heap_scan_flags(Relation relation);
extern bool heap_fetch(Relation relation, Snapshot snapshot,
HeapTuple tuple, Buffer *userbuf);
extern bool heap_fetch_extended(Relation relation, Snapshot snapshot,
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12 changes: 11 additions & 1 deletion src/include/access/tableam.h
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Expand Up @@ -395,7 +395,7 @@ typedef struct TableAmRoutine
* AM can support, return the flags represented the supported features of
* scan.
*/
int (*scan_flags) (Relation rel);
uint32 (*scan_flags) (Relation rel);

/* ------------------------------------------------------------------------
* Parallel table scan related functions.
Expand Down Expand Up @@ -1245,6 +1245,16 @@ table_scan_getnextslot_tidrange(TableScanDesc sscan, ScanDirection direction,
slot);
}

/*
* Return the flags represented the supported features of table AM scan.
*/
static inline uint32
table_scan_flags(Relation rel)
{
if (rel->rd_tableam->scan_flags)
return rel->rd_tableam->scan_flags(rel);
return 0;
}

/* ----------------------------------------------------------------------------
* Parallel table scan related functions.
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2 changes: 1 addition & 1 deletion src/include/cdb/cdbappendonlyam.h
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Expand Up @@ -445,7 +445,7 @@ extern void appendonly_endscan(TableScanDesc scan);
extern bool appendonly_getnextslot(TableScanDesc scan,
ScanDirection direction,
TupleTableSlot *slot);
extern int appendonly_scan_flags(Relation relation);
extern uint32 appendonly_scan_flags(Relation relation);
extern AppendOnlyFetchDesc appendonly_fetch_init(
Relation relation,
Snapshot snapshot,
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