/*
* Fills in the relation statistics for an append-only relation.
*
* This information is used to update the reltuples and relpages information
* in pg_class. reltuples is the same as "pg_aoseg_<oid>:tupcount"
* column and we simulate relpages by subdividing the eof value
* ("pg_aoseg_<oid>:eof") over the defined page size.
*/
void
vacuum_appendonly_fill_stats(Relation aorel, Snapshot snapshot,
BlockNumber *rel_pages, double *rel_tuples,
bool *relhasindex)
{
FileSegTotals *fstotal;
BlockNumber nblocks;
char *relname;
double num_tuples;
double totalbytes;
double eof;
int64 hidden_tupcount;
AppendOnlyVisimap visimap;
Assert(RelationIsAoRows(aorel) || RelationIsAoCols(aorel));
relname = RelationGetRelationName(aorel);
/* get updated statistics from the pg_aoseg table */
if (RelationIsAoRows(aorel))
{
fstotal = GetSegFilesTotals(aorel, snapshot);
}
else
{
Assert(RelationIsAoCols(aorel));
fstotal = GetAOCSSSegFilesTotals(aorel, snapshot);
}
/* calculate the values we care about */
eof = (double)fstotal->totalbytes;
num_tuples = (double)fstotal->totaltuples;
totalbytes = eof;
nblocks = (uint32)RelationGuessNumberOfBlocks(totalbytes);
AppendOnlyVisimap_Init(&visimap,
aorel->rd_appendonly->visimaprelid,
aorel->rd_appendonly->visimapidxid,
AccessShareLock,
snapshot);
hidden_tupcount = AppendOnlyVisimap_GetRelationHiddenTupleCount(&visimap);
num_tuples -= hidden_tupcount;
Assert(num_tuples > -1.0);
AppendOnlyVisimap_Finish(&visimap, AccessShareLock);
elogif (Debug_appendonly_print_compaction, LOG,
"Gather statistics after vacuum for append-only relation %s: "
"page count %d, tuple count %f",
relname,
nblocks, num_tuples);
*rel_pages = nblocks;
*rel_tuples = num_tuples;
*relhasindex = aorel->rd_rel->relhasindex;
ereport(elevel,
(errmsg("\"%s\": found %.0f rows in %u pages.",
relname, num_tuples, nblocks)));
pfree(fstotal);
}
static void gp_statistics_estimate_reltuples_relpages_ao_rows(Relation rel, float4 *reltuples, float4 *relpages)
{
FileSegTotals *fstotal;
AppendOnlyEntry *aoEntry;
AppendOnlyVisimap visimap;
int64 hidden_tupcount = 0;
/**
* Ensure that the right kind of relation with the right type of storage is passed to us.
*/
Assert(rel->rd_rel->relkind == RELKIND_RELATION);
Assert(RelationIsAoRows(rel));
fstotal = GetSegFilesTotals(rel, SnapshotNow);
Assert(fstotal);
/**
* The planner doesn't understand AO's blocks, so need this method to try to fudge up a number for
* the planner.
*/
*relpages = RelationGuessNumberOfBlocks((double)fstotal->totalbytes);
aoEntry = GetAppendOnlyEntry(RelationGetRelid(rel), SnapshotNow);
AppendOnlyVisimap_Init(&visimap, aoEntry->visimaprelid, aoEntry->visimapidxid, AccessShareLock, SnapshotNow);
hidden_tupcount = AppendOnlyVisimap_GetRelationHiddenTupleCount(&visimap);
AppendOnlyVisimap_Finish(&visimap, AccessShareLock);
/**
* The number of tuples in AO table is known accurately. Therefore, we just utilize this value.
*/
*reltuples = (double)(fstotal->totaltuples - hidden_tupcount);
pfree(fstotal);
pfree(aoEntry);
return;
}
static void gp_statistics_estimate_reltuples_relpages_ao_cs(Relation rel, float4 *reltuples, float4 *relpages)
{
AOCSFileSegInfo **aocsInfo = NULL;
int nsegs = 0;
double totalBytes = 0;
AppendOnlyEntry *aoEntry;
int64 hidden_tupcount;
AppendOnlyVisimap visimap;
/**
* Ensure that the right kind of relation with the right type of storage is passed to us.
*/
Assert(rel->rd_rel->relkind == RELKIND_RELATION);
Assert(RelationIsAoCols(rel));
*reltuples = 0.0;
*relpages = 0.0;
/* get table level statistics from the pg_aoseg table */
aoEntry = GetAppendOnlyEntry(RelationGetRelid(rel), SnapshotNow);
aocsInfo = GetAllAOCSFileSegInfo(rel, aoEntry, SnapshotNow, &nsegs);
if (aocsInfo)
{
int i = 0;
int j = 0;
for(i = 0; i < nsegs; i++)
{
for(j = 0; j < RelationGetNumberOfAttributes(rel); j++)
{
AOCSVPInfoEntry *e = getAOCSVPEntry(aocsInfo[i], j);
Assert(e);
totalBytes += e->eof_uncompressed;
}
/* Do not include tuples from an awaiting drop segment file */
if (aocsInfo[i]->state != AOSEG_STATE_AWAITING_DROP)
{
*reltuples += aocsInfo[i]->total_tupcount;
}
}
/**
* The planner doesn't understand AO's blocks, so need this method to try to fudge up a number for
* the planner.
*/
*relpages = RelationGuessNumberOfBlocks(totalBytes);
}
AppendOnlyVisimap_Init(&visimap, aoEntry->visimaprelid, aoEntry->visimapidxid, AccessShareLock, SnapshotNow);
hidden_tupcount = AppendOnlyVisimap_GetRelationHiddenTupleCount(&visimap);
AppendOnlyVisimap_Finish(&visimap, AccessShareLock);
(*reltuples) -= hidden_tupcount;
pfree(aoEntry);
return;
}
/*
* Assumes that the segment file lock is already held.
* Assumes that the segment file should be compacted.
*/
static bool
AOCSSegmentFileFullCompaction(Relation aorel,
AOCSInsertDesc insertDesc,
AOCSFileSegInfo *fsinfo,
Snapshot snapshot)
{
const char *relname;
AppendOnlyVisimap visiMap;
AOCSScanDesc scanDesc;
TupleDesc tupDesc;
TupleTableSlot *slot;
int compact_segno;
int64 movedTupleCount = 0;
ResultRelInfo *resultRelInfo;
MemTupleBinding *mt_bind;
EState *estate;
bool *proj;
int i;
AOTupleId *aoTupleId;
int64 tupleCount = 0;
int64 tuplePerPage = INT_MAX;
Assert(Gp_role == GP_ROLE_EXECUTE || Gp_role == GP_ROLE_UTILITY);
Assert(RelationIsAoCols(aorel));
Assert(insertDesc);
compact_segno = fsinfo->segno;
if (fsinfo->varblockcount > 0)
{
tuplePerPage = fsinfo->total_tupcount / fsinfo->varblockcount;
}
relname = RelationGetRelationName(aorel);
AppendOnlyVisimap_Init(&visiMap,
aorel->rd_appendonly->visimaprelid,
aorel->rd_appendonly->visimapidxid,
ShareLock,
snapshot);
elogif(Debug_appendonly_print_compaction,
LOG, "Compact AO segfile %d, relation %sd",
compact_segno, relname);
proj = palloc0(sizeof(bool) * RelationGetNumberOfAttributes(aorel));
for (i = 0; i < RelationGetNumberOfAttributes(aorel); ++i)
{
proj[i] = true;
}
scanDesc = aocs_beginrangescan(aorel,
snapshot, snapshot,
&compact_segno, 1, NULL, proj);
tupDesc = RelationGetDescr(aorel);
slot = MakeSingleTupleTableSlot(tupDesc);
mt_bind = create_memtuple_binding(tupDesc);
/*
* We need a ResultRelInfo and an EState so we can use the regular
* executor's index-entry-making machinery.
*/
estate = CreateExecutorState();
resultRelInfo = makeNode(ResultRelInfo);
resultRelInfo->ri_RangeTableIndex = 1; /* dummy */
resultRelInfo->ri_RelationDesc = aorel;
resultRelInfo->ri_TrigDesc = NULL; /* we don't fire triggers */
ExecOpenIndices(resultRelInfo);
estate->es_result_relations = resultRelInfo;
estate->es_num_result_relations = 1;
estate->es_result_relation_info = resultRelInfo;
while (aocs_getnext(scanDesc, ForwardScanDirection, slot))
{
CHECK_FOR_INTERRUPTS();
aoTupleId = (AOTupleId *) slot_get_ctid(slot);
if (AppendOnlyVisimap_IsVisible(&scanDesc->visibilityMap, aoTupleId))
{
AOCSMoveTuple(slot,
insertDesc,
resultRelInfo,
estate);
movedTupleCount++;
}
else
{
/* Tuple is invisible and needs to be dropped */
AppendOnlyThrowAwayTuple(aorel,
slot,
mt_bind);
}
/*
* Check for vacuum delay point after approximatly a var block
*/
tupleCount++;
if (VacuumCostActive && tupleCount % tuplePerPage == 0)
{
vacuum_delay_point();
}
}
SetAOCSFileSegInfoState(aorel, compact_segno,
AOSEG_STATE_AWAITING_DROP);
AppendOnlyVisimap_DeleteSegmentFile(&visiMap,
compact_segno);
/* Delete all mini pages of the segment files if block directory exists */
if (OidIsValid(aorel->rd_appendonly->blkdirrelid))
{
AppendOnlyBlockDirectory_DeleteSegmentFile(aorel,
snapshot,
compact_segno,
0);
}
elogif(Debug_appendonly_print_compaction, LOG,
"Finished compaction: "
"AO segfile %d, relation %s, moved tuple count " INT64_FORMAT,
compact_segno, relname, movedTupleCount);
AppendOnlyVisimap_Finish(&visiMap, NoLock);
ExecCloseIndices(resultRelInfo);
FreeExecutorState(estate);
ExecDropSingleTupleTableSlot(slot);
destroy_memtuple_binding(mt_bind);
aocs_endscan(scanDesc);
pfree(proj);
return true;
}
/*
* Returns true iff the given segment file should be compacted.
*/
bool
AppendOnlyCompaction_ShouldCompact(
Relation aoRelation,
AppendOnlyEntry *aoEntry,
int segno,
int64 segmentTotalTupcount,
bool isFull)
{
bool result;
AppendOnlyVisimap visiMap;
int64 hiddenTupcount;
int hideRatio;
Assert(RelationIsAoRows(aoRelation) || RelationIsAoCols(aoRelation));
if (!gp_appendonly_compaction)
{
ereport(LOG,
(errmsg("Append-only compaction skipped on relation %s, segment file num %d",
RelationGetRelationName(aoRelation),
segno),
errdetail("Compaction is disabled")));
/* Disable compaction by global guc. */
return false;
}
AppendOnlyVisimap_Init(&visiMap,
aoEntry->visimaprelid,
aoEntry->visimapidxid,
ShareLock,
SnapshotNow);
hiddenTupcount = AppendOnlyVisimap_GetSegmentFileHiddenTupleCount(
&visiMap, segno);
result = true;
if (isFull && hiddenTupcount > 0)
{
/*
* if it is a full vacuum and there is any obsolete data, do a compaction
*/
result = true;
}
else
{
hideRatio = AppendOnlyCompaction_GetHideRatio(hiddenTupcount, segmentTotalTupcount);
if (hideRatio <= gp_appendonly_compaction_threshold || gp_appendonly_compaction_threshold == 0)
{
if (hiddenTupcount > 0)
{
ereportif(Debug_appendonly_print_compaction, LOG,
(errmsg("Append-only compaction skipped on relation %s, segment file num %d, "
"hidden tupcount " INT64_FORMAT ", total tupcount " INT64_FORMAT ", "
"hide ratio %d%%, threshold %d%%",
RelationGetRelationName(aoRelation),
segno,
hiddenTupcount, segmentTotalTupcount,
hideRatio, gp_appendonly_compaction_threshold)));
ereport(LOG,
(errmsg("Append-only compaction skipped on relation %s, segment file num %d",
RelationGetRelationName(aoRelation),
segno),
errdetail("Ratio of obsolete tuples below threshold (%d%% vs %d%%)",
hideRatio, gp_appendonly_compaction_threshold)));
}
else
{
ereportif(Debug_appendonly_print_compaction, LOG,
(errmsg("Append-only compaction skipped on relation %s, segment file num %d, "
"hidden tupcount " INT64_FORMAT ", total tupcount " INT64_FORMAT ", "
"hide ratio %d%%, threshold %d%%",
RelationGetRelationName(aoRelation),
segno,
hiddenTupcount, segmentTotalTupcount,
hideRatio, gp_appendonly_compaction_threshold)));
}
result = false;
}
elogif(Debug_appendonly_print_compaction, LOG,
"Schedule compaction: "
"segno %d, "
"hidden tupcount " INT64_FORMAT ", total tupcount " INT64_FORMAT ", "
"hide ratio %d%%, threshold %d%%",
segno,
hiddenTupcount, segmentTotalTupcount,
hideRatio, gp_appendonly_compaction_threshold);
}
AppendOnlyVisimap_Finish(&visiMap, ShareLock);
return result;
}
/*
* Assumes that the segment file lock is already held.
* Assumes that the segment file should be compacted.
*
*/
static void
AppendOnlySegmentFileFullCompaction(Relation aorel,
AppendOnlyEntry *aoEntry,
AppendOnlyInsertDesc insertDesc,
FileSegInfo* fsinfo)
{
const char* relname;
AppendOnlyVisimap visiMap;
AppendOnlyScanDesc scanDesc;
TupleDesc tupDesc;
MemTuple tuple;
TupleTableSlot *slot;
MemTupleBinding *mt_bind;
int compact_segno;
int64 movedTupleCount = 0;
ResultRelInfo *resultRelInfo;
EState *estate;
AOTupleId *aoTupleId;
int64 tupleCount = 0;
int64 tuplePerPage = INT_MAX;
Assert(Gp_role == GP_ROLE_EXECUTE || Gp_role == GP_ROLE_UTILITY);
Assert(RelationIsAoRows(aorel));
Assert(insertDesc);
compact_segno = fsinfo->segno;
if (fsinfo->varblockcount > 0)
{
tuplePerPage = fsinfo->total_tupcount / fsinfo->varblockcount;
}
relname = RelationGetRelationName(aorel);
AppendOnlyVisimap_Init(&visiMap,
aoEntry->visimaprelid,
aoEntry->visimapidxid,
ShareUpdateExclusiveLock,
SnapshotNow);
elogif(Debug_appendonly_print_compaction,
LOG, "Compact AO segno %d, relation %s, insert segno %d",
compact_segno, relname, insertDesc->storageWrite.segmentFileNum);
/*
* Todo: We need to limit the scan to one file and we need to avoid to
* lock the file again.
*
* We use SnapshotAny to get visible and invisible tuples.
*/
scanDesc = appendonly_beginrangescan(aorel,
SnapshotAny, SnapshotNow,
&compact_segno, 1, 0, NULL);
tupDesc = RelationGetDescr(aorel);
slot = MakeSingleTupleTableSlot(tupDesc);
mt_bind = create_memtuple_binding(tupDesc);
/*
* We need a ResultRelInfo and an EState so we can use the regular
* executor's index-entry-making machinery.
*/
estate = CreateExecutorState();
resultRelInfo = makeNode(ResultRelInfo);
resultRelInfo->ri_RangeTableIndex = 1; /* dummy */
resultRelInfo->ri_RelationDesc = aorel;
resultRelInfo->ri_TrigDesc = NULL; /* we don't fire triggers */
ExecOpenIndices(resultRelInfo);
estate->es_result_relations = resultRelInfo;
estate->es_num_result_relations = 1;
estate->es_result_relation_info = resultRelInfo;
/*
* Go through all visible tuples and move them to a new segfile.
*/
while ((tuple = appendonly_getnext(scanDesc, ForwardScanDirection, slot)) != NULL)
{
/* Check interrupts as this may take time. */
CHECK_FOR_INTERRUPTS();
aoTupleId = (AOTupleId*)slot_get_ctid(slot);
if (AppendOnlyVisimap_IsVisible(&scanDesc->visibilityMap, aoTupleId))
{
AppendOnlyMoveTuple(tuple,
slot,
mt_bind,
insertDesc,
resultRelInfo,
estate);
movedTupleCount++;
}
else
{
/* Tuple is invisible and needs to be dropped */
AppendOnlyThrowAwayTuple(aorel,
tuple,
slot,
mt_bind);
}
/*
* Check for vacuum delay point after approximatly a var block
*/
tupleCount++;
if (VacuumCostActive && tupleCount % tuplePerPage == 0)
{
vacuum_delay_point();
}
}
SetFileSegInfoState(aorel, aoEntry, compact_segno, AOSEG_STATE_AWAITING_DROP);
AppendOnlyVisimap_DeleteSegmentFile(&visiMap, compact_segno);
/* Delete all mini pages of the segment files if block directory exists */
if (OidIsValid(aoEntry->blkdirrelid))
{
AppendOnlyBlockDirectory_DeleteSegmentFile(
aoEntry,
SnapshotNow,
compact_segno,
0);
}
elogif(Debug_appendonly_print_compaction, LOG,
"Finished compaction: "
"AO segfile %d, relation %s, moved tuple count " INT64_FORMAT,
compact_segno, relname, movedTupleCount);
AppendOnlyVisimap_Finish(&visiMap, NoLock);
ExecCloseIndices(resultRelInfo);
FreeExecutorState(estate);
ExecDropSingleTupleTableSlot(slot);
destroy_memtuple_binding(mt_bind);
appendonly_endscan(scanDesc);
}
static Datum
gp_aovisimap_entry_internal(PG_FUNCTION_ARGS, Oid aoRelOid)
{
Datum values[4];
bool nulls[4];
HeapTuple tuple;
Datum result;
typedef struct Context
{
AppendOnlyVisimap visiMap;
Relation parentRelation;
IndexScanDesc indexScan;
text *bitmapBuffer;
} Context;
FuncCallContext *funcctx;
Context *context;
if (SRF_IS_FIRSTCALL())
{
TupleDesc tupdesc;
MemoryContext oldcontext;
/* create a function context for cross-call persistence */
funcctx = SRF_FIRSTCALL_INIT();
/*
* switch to memory context appropriate for multiple function
* calls
*/
oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);
/* build tupdesc for result tuples */
tupdesc = CreateTemplateTupleDesc(4, false);
TupleDescInitEntry(tupdesc, (AttrNumber) 1, "segno",
INT4OID, -1, 0);
TupleDescInitEntry(tupdesc, (AttrNumber) 2, "first_row_num",
INT8OID, -1, 0);
TupleDescInitEntry(tupdesc, (AttrNumber) 3, "hidden_tupcount",
INT4OID, -1, 0);
TupleDescInitEntry(tupdesc, (AttrNumber) 4, "bitmap",
TEXTOID, -1, 0);
funcctx->tuple_desc = BlessTupleDesc(tupdesc);
/*
* Collect all the locking information that we will format and send
* out as a result set.
*/
context = (Context *) palloc0(sizeof(Context));
context->parentRelation = heap_open(aoRelOid, AccessShareLock);
if (!(RelationIsAoRows(context->parentRelation) || RelationIsAoCols(context->parentRelation)))
{
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("Function not supported on relation")));
}
AppendOnlyVisimap_Init(&context->visiMap,
context->parentRelation->rd_appendonly->visimaprelid,
context->parentRelation->rd_appendonly->visimapidxid,
AccessShareLock,
SnapshotNow);
context->indexScan = AppendOnlyVisimapStore_BeginScan(&
context->visiMap.visimapStore, 0, NULL);
context->bitmapBuffer = palloc0(VARHDRSZ + APPENDONLY_VISIMAP_MAX_RANGE + 1);
funcctx->user_fctx = (void *) context;
MemoryContextSwitchTo(oldcontext);
}
funcctx = SRF_PERCALL_SETUP();
context = (Context *) funcctx->user_fctx;
if (AppendOnlyVisimapStore_GetNext(&context->visiMap.visimapStore,
context->indexScan,
ForwardScanDirection,
&context->visiMap.visimapEntry,
NULL))
{
AppendOnlyVisimapEntry *visimapEntry = &context->visiMap.visimapEntry;
MemSet(values, 0, sizeof(values));
MemSet(nulls, false, sizeof(nulls));
values[0] = Int32GetDatum(visimapEntry->segmentFileNum);
values[1] = Int64GetDatum(visimapEntry->firstRowNum);
values[2] = Int32GetDatum(
(int32)AppendOnlyVisimapEntry_GetHiddenTupleCount(visimapEntry));
gp_aovisimap_encode_bitmap(VARDATA(context->bitmapBuffer),
visimapEntry->bitmap);
SET_VARSIZE(context->bitmapBuffer, APPENDONLY_VISIMAP_MAX_RANGE);
values[3] = PointerGetDatum(context->bitmapBuffer);
tuple = heap_form_tuple(funcctx->tuple_desc, values, nulls);
result = HeapTupleGetDatum(tuple);
SRF_RETURN_NEXT(funcctx, result);
}
AppendOnlyVisimapStore_EndScan(&context->visiMap.visimapStore,
context->indexScan);
AppendOnlyVisimap_Finish(&context->visiMap, AccessShareLock);
heap_close(context->parentRelation, AccessShareLock);
pfree(context->bitmapBuffer);
pfree(context);
funcctx->user_fctx = NULL;
SRF_RETURN_DONE(funcctx);
}
static Datum
gp_aovisimap_hidden_info_internal(PG_FUNCTION_ARGS, Oid aoRelOid)
{
Datum values[3];
bool nulls[3];
HeapTuple tuple;
Datum result;
typedef struct Context
{
AppendOnlyVisimap visiMap;
Relation parentRelation;
FileSegInfo **appendonlySegfileInfo;
AOCSFileSegInfo **aocsSegfileInfo;
int segfile_info_total;
int i;
} Context;
FuncCallContext *funcctx;
Context *context;
if (SRF_IS_FIRSTCALL())
{
TupleDesc tupdesc;
MemoryContext oldcontext;
/* create a function context for cross-call persistence */
funcctx = SRF_FIRSTCALL_INIT();
/*
* switch to memory context appropriate for multiple function
* calls
*/
oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);
/* build tupdesc for result tuples */
tupdesc = CreateTemplateTupleDesc(3, false);
TupleDescInitEntry(tupdesc, (AttrNumber) 1, "segno",
INT4OID, -1, 0);
TupleDescInitEntry(tupdesc, (AttrNumber) 2, "hidden_tupcount",
INT8OID, -1, 0);
TupleDescInitEntry(tupdesc, (AttrNumber) 3, "total_tupcount",
INT8OID, -1, 0);
funcctx->tuple_desc = BlessTupleDesc(tupdesc);
/*
* Collect all the locking information that we will format and send
* out as a result set.
*/
context = (Context *) palloc0(sizeof(Context));
context->parentRelation = heap_open(aoRelOid, AccessShareLock);
if (!(RelationIsAoRows(context->parentRelation) || RelationIsAoCols(context->parentRelation)))
{
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("Function not supported on relation")));
}
if (RelationIsAoRows(context->parentRelation))
{
context->appendonlySegfileInfo = GetAllFileSegInfo(
context->parentRelation,
SnapshotNow,
&context->segfile_info_total);
}
else
{
Assert(RelationIsAoCols(context->parentRelation));
context->aocsSegfileInfo = GetAllAOCSFileSegInfo(context->parentRelation,
SnapshotNow, &context->segfile_info_total);
}
context->i = 0;
AppendOnlyVisimap_Init(&context->visiMap,
context->parentRelation->rd_appendonly->visimaprelid,
context->parentRelation->rd_appendonly->visimapidxid,
AccessShareLock,
SnapshotNow);
funcctx->user_fctx = (void *) context;
MemoryContextSwitchTo(oldcontext);
}
funcctx = SRF_PERCALL_SETUP();
context = (Context *) funcctx->user_fctx;
while (context->i < context->segfile_info_total)
{
int64 tupcount;
int segno;
if (context->appendonlySegfileInfo)
{
FileSegInfo *fsinfo = context->appendonlySegfileInfo[context->i];
tupcount = fsinfo->total_tupcount;
segno = fsinfo->segno;
}
else if (context->aocsSegfileInfo)
{
AOCSFileSegInfo *fsinfo = context->aocsSegfileInfo[context->i];
tupcount = fsinfo->total_tupcount;
segno = fsinfo->segno;
}
else
{
Insist(false);
}
MemSet(values, 0, sizeof(values));
MemSet(nulls, false, sizeof(nulls));
values[0] = Int32GetDatum(segno);
values[1] = Int64GetDatum(AppendOnlyVisimap_GetSegmentFileHiddenTupleCount(
&context->visiMap, segno));
values[2] = Int64GetDatum(tupcount);
tuple = heap_form_tuple(funcctx->tuple_desc, values, nulls);
result = HeapTupleGetDatum(tuple);
context->i++;
SRF_RETURN_NEXT(funcctx, result);
}
AppendOnlyVisimap_Finish(&context->visiMap, AccessShareLock);
if (context->appendonlySegfileInfo)
{
FreeAllSegFileInfo(context->appendonlySegfileInfo, context->segfile_info_total);
pfree(context->appendonlySegfileInfo);
context->appendonlySegfileInfo = NULL;
}
if (context->aocsSegfileInfo)
{
FreeAllAOCSSegFileInfo(context->aocsSegfileInfo, context->segfile_info_total);
pfree(context->aocsSegfileInfo);
context->aocsSegfileInfo = NULL;
}
heap_close(context->parentRelation, AccessShareLock);
pfree(context);
funcctx->user_fctx = NULL;
SRF_RETURN_DONE(funcctx);
}
