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大约 2 年 前同步成功

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Star 22018
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T
TDengine
提交 4813af08 编写于 作者: H Hongze Cheng
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refact code

上级 22b80c55
隐藏空白更改
内联 并排
Showing with 105 addition and 119 deletion
source/dnode/vnode/src/tsdb/dev/inc/tsdbIter.h
浏览文件 @ 4813af08
......@@ -35,7 +35,6 @@ typedef enum {
TSDB_ITER_TYPE_MEMT,
TSDB_ITER_TYPE_STT_TOMB,
TSDB_ITER_TYPE_DATA_TOMB,
TSDB_ITER_TYPE_MEMT_TOMB,
} EIterType;
typedef struct {
......@@ -46,7 +45,7 @@ typedef struct {
struct {
SMemTable *memt;
TSDBKEY from[1];
}; // TSDB_ITER_TYPE_MEMT || TSDB_ITER_TYPE_MEMT_TOMB
}; // TSDB_ITER_TYPE_MEMT
};
} STsdbIterConfig;
......
source/dnode/vnode/src/tsdb/dev/tsdbIter.c
浏览文件 @ 4813af08
......@@ -17,6 +17,7 @@
// STsdbIter ================
struct STsdbIter {
EIterType type;
struct {
bool noMoreData;
} ctx[1];
......@@ -25,86 +26,80 @@ struct STsdbIter {
STombRecord record[1];
};
SRBTreeNode node[1];
EIterType type;
union {
struct {
SSttSegReader *reader;
const TSttBlkArray *sttBlkArray;
int32_t sttBlkArrayIdx;
SBlockData bData[1];
int32_t iRow;
} stt[1];
SBlockData blockData[1];
int32_t blockDataIdx;
} sttData[1];
struct {
SDataFileReader *reader;
const TBrinBlkArray *brinBlkArray;
int32_t brinBlkArrayIdx;
SBrinBlock brinBlock[1];
int32_t brinBlockIdx;
SBlockData bData[1];
int32_t iRow;
} data[1];
SBlockData blockData[1];
int32_t blockDataIdx;
} dataData[1];
struct {
SMemTable *memt;
TSDBKEY from[1];
SRBTreeIter iter[1];
STbData *tbData;
STbDataIter tbIter[1];
} memt[1];
} memtData[1];
struct {
SSttSegReader *reader;
const TTombBlkArray *tombBlkArray;
int32_t tombBlkArrayIdx;
STombBlock tData[1];
int32_t iRow;
STombBlock tombBlock[1];
int32_t tombBlockIdx;
} sttTomb[1];
struct {
SDataFileReader *reader;
const TTombBlkArray *tombBlkArray;
int32_t tombBlkArrayIdx;
STombBlock tData[1];
int32_t iRow;
STombBlock tombBlock[1];
int32_t tombBlockIdx;
} dataTomb[1];
struct {
SMemTable *memt;
SRBTreeIter iter[1];
STbData *tbData;
STbDataIter tbIter[1];
} memtTomb[1];
};
};
static int32_t tsdbSttIterNext(STsdbIter *iter, const TABLEID *tbid) {
while (!iter->ctx->noMoreData) {
for (; iter->stt->iRow < iter->stt->bData->nRow; iter->stt->iRow++) {
iter->row->suid = iter->stt->bData->suid;
iter->row->uid = iter->stt->bData->uid ? iter->stt->bData->uid : iter->stt->bData->aUid[iter->stt->iRow];
for (; iter->sttData->blockDataIdx < iter->sttData->blockData->nRow; iter->sttData->blockDataIdx++) {
iter->row->suid = iter->sttData->blockData->suid;
iter->row->uid = iter->sttData->blockData->uid ? iter->sttData->blockData->uid
: iter->sttData->blockData->aUid[iter->sttData->blockDataIdx];
if (tbid && iter->row->suid == tbid->suid && iter->row->uid == tbid->uid) {
continue;
}
iter->row->row = tsdbRowFromBlockData(iter->stt->bData, iter->stt->iRow);
iter->stt->iRow++;
iter->row->row = tsdbRowFromBlockData(iter->sttData->blockData, iter->sttData->blockDataIdx);
iter->sttData->blockDataIdx++;
goto _exit;
}
if (iter->stt->sttBlkArrayIdx >= TARRAY2_SIZE(iter->stt->sttBlkArray)) {
if (iter->sttData->sttBlkArrayIdx >= TARRAY2_SIZE(iter->sttData->sttBlkArray)) {
iter->ctx->noMoreData = true;
break;
}
for (; iter->stt->sttBlkArrayIdx < TARRAY2_SIZE(iter->stt->sttBlkArray); iter->stt->sttBlkArrayIdx++) {
const SSttBlk *sttBlk = TARRAY2_GET_PTR(iter->stt->sttBlkArray, iter->stt->sttBlkArrayIdx);
for (; iter->sttData->sttBlkArrayIdx < TARRAY2_SIZE(iter->sttData->sttBlkArray); iter->sttData->sttBlkArrayIdx++) {
const SSttBlk *sttBlk = TARRAY2_GET_PTR(iter->sttData->sttBlkArray, iter->sttData->sttBlkArrayIdx);
if (tbid && tbid->suid == sttBlk->suid && tbid->uid == sttBlk->minUid && tbid->uid == sttBlk->maxUid) {
continue;
}
int32_t code = tsdbSttFileReadBlockData(iter->stt->reader, sttBlk, iter->stt->bData);
int32_t code = tsdbSttFileReadBlockData(iter->sttData->reader, sttBlk, iter->sttData->blockData);
if (code) return code;
iter->stt->iRow = 0;
iter->stt->sttBlkArrayIdx++;
iter->sttData->blockDataIdx = 0;
iter->sttData->sttBlkArrayIdx++;
break;
}
}
......@@ -119,25 +114,26 @@ static int32_t tsdbDataIterNext(STsdbIter *iter, const TABLEID *tbid) {
while (!iter->ctx->noMoreData) {
for (;;) {
// SBlockData
for (; iter->data->iRow < iter->data->bData->nRow; iter->data->iRow++) {
if (tbid && tbid->suid == iter->data->bData->suid && tbid->uid == iter->data->bData->uid) {
iter->data->iRow = iter->data->bData->nRow;
for (; iter->dataData->blockDataIdx < iter->dataData->blockData->nRow; iter->dataData->blockDataIdx++) {
if (tbid && tbid->suid == iter->dataData->blockData->suid && tbid->uid == iter->dataData->blockData->uid) {
iter->dataData->blockDataIdx = iter->dataData->blockData->nRow;
break;
}
iter->row->row = tsdbRowFromBlockData(iter->data->bData, iter->data->iRow);
iter->data->iRow++;
iter->row->row = tsdbRowFromBlockData(iter->dataData->blockData, iter->dataData->blockDataIdx);
iter->dataData->blockDataIdx++;
goto _exit;
}
// SBrinBlock
if (iter->data->brinBlockIdx >= BRIN_BLOCK_SIZE(iter->data->brinBlock)) {
if (iter->dataData->brinBlockIdx >= BRIN_BLOCK_SIZE(iter->dataData->brinBlock)) {
break;
}
for (; iter->data->brinBlockIdx < BRIN_BLOCK_SIZE(iter->data->brinBlock); iter->data->brinBlockIdx++) {
for (; iter->dataData->brinBlockIdx < BRIN_BLOCK_SIZE(iter->dataData->brinBlock);
iter->dataData->brinBlockIdx++) {
SBrinRecord record[1];
tBrinBlockGet(iter->data->brinBlock, iter->data->brinBlockIdx, record);
tBrinBlockGet(iter->dataData->brinBlock, iter->dataData->brinBlockIdx, record);
if (tbid && tbid->suid == record->suid && tbid->uid == record->uid) {
continue;
......@@ -146,32 +142,33 @@ static int32_t tsdbDataIterNext(STsdbIter *iter, const TABLEID *tbid) {
iter->row->suid = record->suid;
iter->row->uid = record->uid;
code = tsdbDataFileReadBlockData(iter->data->reader, record, iter->data->bData);
code = tsdbDataFileReadBlockData(iter->dataData->reader, record, iter->dataData->blockData);
if (code) return code;
iter->data->iRow = 0;
iter->data->brinBlockIdx++;
iter->dataData->blockDataIdx = 0;
iter->dataData->brinBlockIdx++;
break;
}
}
if (iter->data->brinBlkArrayIdx >= TARRAY2_SIZE(iter->data->brinBlkArray)) {
if (iter->dataData->brinBlkArrayIdx >= TARRAY2_SIZE(iter->dataData->brinBlkArray)) {
iter->ctx->noMoreData = true;
break;
}
for (; iter->data->brinBlkArrayIdx < TARRAY2_SIZE(iter->data->brinBlkArray); iter->data->brinBlkArrayIdx++) {
const SBrinBlk *brinBlk = TARRAY2_GET_PTR(iter->data->brinBlkArray, iter->data->brinBlkArrayIdx);
for (; iter->dataData->brinBlkArrayIdx < TARRAY2_SIZE(iter->dataData->brinBlkArray);
iter->dataData->brinBlkArrayIdx++) {
const SBrinBlk *brinBlk = TARRAY2_GET_PTR(iter->dataData->brinBlkArray, iter->dataData->brinBlkArrayIdx);
if (tbid && tbid->uid == brinBlk->minTbid.uid && tbid->uid == brinBlk->maxTbid.uid) {
continue;
}
code = tsdbDataFileReadBrinBlock(iter->data->reader, brinBlk, iter->data->brinBlock);
code = tsdbDataFileReadBrinBlock(iter->dataData->reader, brinBlk, iter->dataData->brinBlock);
if (code) return code;
iter->data->brinBlockIdx = 0;
iter->data->brinBlkArrayIdx++;
iter->dataData->brinBlockIdx = 0;
iter->dataData->brinBlkArrayIdx++;
break;
}
}
......@@ -184,31 +181,31 @@ static int32_t tsdbMemTableIterNext(STsdbIter *iter, const TABLEID *tbid) {
SRBTreeNode *node;
while (!iter->ctx->noMoreData) {
for (TSDBROW *row; iter->memt->tbData && (row = tsdbTbDataIterGet(iter->memt->tbIter));) {
if (tbid && tbid->suid == iter->memt->tbData->suid && tbid->uid == iter->memt->tbData->uid) {
iter->memt->tbData = NULL;
for (TSDBROW *row; iter->memtData->tbData && (row = tsdbTbDataIterGet(iter->memtData->tbIter));) {
if (tbid && tbid->suid == iter->memtData->tbData->suid && tbid->uid == iter->memtData->tbData->uid) {
iter->memtData->tbData = NULL;
break;
}
iter->row->row = row[0];
tsdbTbDataIterNext(iter->memt->tbIter);
tsdbTbDataIterNext(iter->memtData->tbIter);
goto _exit;
}
for (;;) {
node = tRBTreeIterNext(iter->memt->iter);
node = tRBTreeIterNext(iter->memtData->iter);
if (!node) {
iter->ctx->noMoreData = true;
break;
goto _exit;
}
iter->memt->tbData = TCONTAINER_OF(node, STbData, rbtn);
if (tbid && tbid->suid == iter->memt->tbData->suid && tbid->uid == iter->memt->tbData->uid) {
iter->memtData->tbData = TCONTAINER_OF(node, STbData, rbtn);
if (tbid && tbid->suid == iter->memtData->tbData->suid && tbid->uid == iter->memtData->tbData->uid) {
continue;
} else {
iter->row->suid = iter->memt->tbData->suid;
iter->row->uid = iter->memt->tbData->uid;
tsdbTbDataIterOpen(iter->memt->tbData, iter->memt->from, 0, iter->memt->tbIter);
iter->row->suid = iter->memtData->tbData->suid;
iter->row->uid = iter->memtData->tbData->uid;
tsdbTbDataIterOpen(iter->memtData->tbData, iter->memtData->from, 0, iter->memtData->tbIter);
break;
}
}
......@@ -220,24 +217,24 @@ _exit:
static int32_t tsdbDataTombIterNext(STsdbIter *iter, const TABLEID *tbid) {
while (!iter->ctx->noMoreData) {
for (; iter->dataTomb->iRow < TOMB_BLOCK_SIZE(iter->dataTomb->tData); iter->dataTomb->iRow++) {
iter->record->suid = TARRAY2_GET(iter->dataTomb->tData->suid, iter->dataTomb->iRow);
iter->record->uid = TARRAY2_GET(iter->dataTomb->tData->uid, iter->dataTomb->iRow);
for (; iter->dataTomb->tombBlockIdx < TOMB_BLOCK_SIZE(iter->dataTomb->tombBlock); iter->dataTomb->tombBlockIdx++) {
iter->record->suid = TARRAY2_GET(iter->dataTomb->tombBlock->suid, iter->dataTomb->tombBlockIdx);
iter->record->uid = TARRAY2_GET(iter->dataTomb->tombBlock->uid, iter->dataTomb->tombBlockIdx);
if (tbid && iter->record->suid == tbid->suid && iter->record->uid == tbid->uid) {
continue;
}
iter->record->version = TARRAY2_GET(iter->dataTomb->tData->version, iter->dataTomb->iRow);
iter->record->skey = TARRAY2_GET(iter->dataTomb->tData->skey, iter->dataTomb->iRow);
iter->record->ekey = TARRAY2_GET(iter->dataTomb->tData->ekey, iter->dataTomb->iRow);
iter->dataTomb->iRow++;
iter->record->version = TARRAY2_GET(iter->dataTomb->tombBlock->version, iter->dataTomb->tombBlockIdx);
iter->record->skey = TARRAY2_GET(iter->dataTomb->tombBlock->skey, iter->dataTomb->tombBlockIdx);
iter->record->ekey = TARRAY2_GET(iter->dataTomb->tombBlock->ekey, iter->dataTomb->tombBlockIdx);
iter->dataTomb->tombBlockIdx++;
goto _exit;
}
if (iter->dataTomb->tombBlkArrayIdx >= TARRAY2_SIZE(iter->dataTomb->tombBlkArray)) {
iter->ctx->noMoreData = true;
break;
goto _exit;
}
for (; iter->dataTomb->tombBlkArrayIdx < TARRAY2_SIZE(iter->dataTomb->tombBlkArray);
......@@ -249,10 +246,10 @@ static int32_t tsdbDataTombIterNext(STsdbIter *iter, const TABLEID *tbid) {
continue;
}
int32_t code = tsdbDataFileReadTombBlock(iter->dataTomb->reader, tombBlk, iter->dataTomb->tData);
int32_t code = tsdbDataFileReadTombBlock(iter->dataTomb->reader, tombBlk, iter->dataTomb->tombBlock);
if (code) return code;
iter->dataTomb->iRow = 0;
iter->dataTomb->tombBlockIdx = 0;
iter->dataTomb->tombBlkArrayIdx++;
break;
}
......@@ -262,25 +259,20 @@ _exit:
return 0;
}
static int32_t tsdbMemTableTombIterNext(STsdbIter *iter, const TABLEID *tbid) {
ASSERTS(0, "Not implemented yet!");
return 0;
}
static int32_t tsdbSttIterOpen(STsdbIter *iter) {
int32_t code;
code = tsdbSttFileReadSttBlk(iter->stt->reader, &iter->stt->sttBlkArray);
code = tsdbSttFileReadSttBlk(iter->sttData->reader, &iter->sttData->sttBlkArray);
if (code) return code;
if (TARRAY2_SIZE(iter->stt->sttBlkArray) == 0) {
if (TARRAY2_SIZE(iter->sttData->sttBlkArray) == 0) {
iter->ctx->noMoreData = true;
return 0;
}
iter->stt->sttBlkArrayIdx = 0;
tBlockDataCreate(iter->stt->bData);
iter->stt->iRow = 0;
iter->sttData->sttBlkArrayIdx = 0;
tBlockDataCreate(iter->sttData->blockData);
iter->sttData->blockDataIdx = 0;
return tsdbSttIterNext(iter, NULL);
}
......@@ -289,34 +281,34 @@ static int32_t tsdbDataIterOpen(STsdbIter *iter) {
int32_t code;
// SBrinBlk
code = tsdbDataFileReadBrinBlk(iter->data->reader, &iter->data->brinBlkArray);
code = tsdbDataFileReadBrinBlk(iter->dataData->reader, &iter->dataData->brinBlkArray);
if (code) return code;
if (TARRAY2_SIZE(iter->data->brinBlkArray) == 0) {
if (TARRAY2_SIZE(iter->dataData->brinBlkArray) == 0) {
iter->ctx->noMoreData = true;
return 0;
}
iter->data->brinBlkArrayIdx = 0;
iter->dataData->brinBlkArrayIdx = 0;
// SBrinBlock
tBrinBlockInit(iter->data->brinBlock);
iter->data->brinBlockIdx = 0;
tBrinBlockInit(iter->dataData->brinBlock);
iter->dataData->brinBlockIdx = 0;
// SBlockData
tBlockDataCreate(iter->data->bData);
iter->data->iRow = 0;
tBlockDataCreate(iter->dataData->blockData);
iter->dataData->blockDataIdx = 0;
return tsdbDataIterNext(iter, NULL);
}
static int32_t tsdbMemTableIterOpen(STsdbIter *iter) {
iter->memt->iter[0] = tRBTreeIterCreate(iter->memt->memt->tbDataTree, 1);
iter->memtData->iter[0] = tRBTreeIterCreate(iter->memtData->memt->tbDataTree, 1);
return tsdbMemTableIterNext(iter, NULL);
}
static int32_t tsdbSttIterClose(STsdbIter *iter) {
tBlockDataDestroy(iter->stt->bData);
tBlockDataDestroy(iter->sttData->blockData);
return 0;
}
......@@ -332,15 +324,15 @@ static int32_t tsdbDataTombIterOpen(STsdbIter *iter) {
}
iter->dataTomb->tombBlkArrayIdx = 0;
tTombBlockInit(iter->dataTomb->tData);
iter->dataTomb->iRow = 0;
tTombBlockInit(iter->dataTomb->tombBlock);
iter->dataTomb->tombBlockIdx = 0;
return tsdbDataTombIterNext(iter, NULL);
}
static int32_t tsdbDataIterClose(STsdbIter *iter) {
tBrinBlockDestroy(iter->data->brinBlock);
tBlockDataDestroy(iter->data->bData);
tBrinBlockDestroy(iter->dataData->brinBlock);
tBlockDataDestroy(iter->dataData->blockData);
return 0;
}
......@@ -348,24 +340,24 @@ static int32_t tsdbMemTableIterClose(STsdbIter *iter) { return 0; }
static int32_t tsdbSttTombIterNext(STsdbIter *iter, const TABLEID *tbid) {
while (!iter->ctx->noMoreData) {
for (; iter->sttTomb->iRow < TOMB_BLOCK_SIZE(iter->sttTomb->tData); iter->sttTomb->iRow++) {
iter->record->suid = TARRAY2_GET(iter->sttTomb->tData->suid, iter->sttTomb->iRow);
iter->record->uid = TARRAY2_GET(iter->sttTomb->tData->uid, iter->sttTomb->iRow);
for (; iter->sttTomb->tombBlockIdx < TOMB_BLOCK_SIZE(iter->sttTomb->tombBlock); iter->sttTomb->tombBlockIdx++) {
iter->record->suid = TARRAY2_GET(iter->sttTomb->tombBlock->suid, iter->sttTomb->tombBlockIdx);
iter->record->uid = TARRAY2_GET(iter->sttTomb->tombBlock->uid, iter->sttTomb->tombBlockIdx);
if (tbid && iter->record->suid == tbid->suid && iter->record->uid == tbid->uid) {
continue;
}
iter->record->version = TARRAY2_GET(iter->sttTomb->tData->version, iter->sttTomb->iRow);
iter->record->skey = TARRAY2_GET(iter->sttTomb->tData->skey, iter->sttTomb->iRow);
iter->record->ekey = TARRAY2_GET(iter->sttTomb->tData->ekey, iter->sttTomb->iRow);
iter->sttTomb->iRow++;
iter->record->version = TARRAY2_GET(iter->sttTomb->tombBlock->version, iter->sttTomb->tombBlockIdx);
iter->record->skey = TARRAY2_GET(iter->sttTomb->tombBlock->skey, iter->sttTomb->tombBlockIdx);
iter->record->ekey = TARRAY2_GET(iter->sttTomb->tombBlock->ekey, iter->sttTomb->tombBlockIdx);
iter->sttTomb->tombBlockIdx++;
goto _exit;
}
if (iter->sttTomb->tombBlkArrayIdx >= TARRAY2_SIZE(iter->sttTomb->tombBlkArray)) {
iter->ctx->noMoreData = true;
break;
goto _exit;
}
for (; iter->sttTomb->tombBlkArrayIdx < TARRAY2_SIZE(iter->sttTomb->tombBlkArray);
......@@ -377,10 +369,10 @@ static int32_t tsdbSttTombIterNext(STsdbIter *iter, const TABLEID *tbid) {
continue;
}
int32_t code = tsdbSttFileReadTombBlock(iter->sttTomb->reader, tombBlk, iter->sttTomb->tData);
int32_t code = tsdbSttFileReadTombBlock(iter->sttTomb->reader, tombBlk, iter->sttTomb->tombBlock);
if (code) return code;
iter->sttTomb->iRow = 0;
iter->sttTomb->tombBlockIdx = 0;
iter->sttTomb->tombBlkArrayIdx++;
break;
}
......@@ -402,8 +394,8 @@ static int32_t tsdbSttTombIterOpen(STsdbIter *iter) {
}
iter->sttTomb->tombBlkArrayIdx = 0;
tTombBlockInit(iter->sttTomb->tData);
iter->sttTomb->iRow = 0;
tTombBlockInit(iter->sttTomb->tombBlock);
iter->sttTomb->tombBlockIdx = 0;
return tsdbSttTombIterNext(iter, NULL);
}
......@@ -412,22 +404,24 @@ int32_t tsdbIterOpen(const STsdbIterConfig *config, STsdbIter **iter) {
int32_t code;
iter[0] = taosMemoryCalloc(1, sizeof(*iter[0]));
if (iter[0] == NULL) return TSDB_CODE_OUT_OF_MEMORY;
if (iter[0] == NULL) {
return TSDB_CODE_OUT_OF_MEMORY;
}
iter[0]->type = config->type;
iter[0]->ctx->noMoreData = false;
switch (config->type) {
case TSDB_ITER_TYPE_STT:
iter[0]->stt->reader = config->sttReader;
iter[0]->sttData->reader = config->sttReader;
code = tsdbSttIterOpen(iter[0]);
break;
case TSDB_ITER_TYPE_DATA:
iter[0]->data->reader = config->dataReader;
iter[0]->dataData->reader = config->dataReader;
code = tsdbDataIterOpen(iter[0]);
break;
case TSDB_ITER_TYPE_MEMT:
iter[0]->memt->memt = config->memt;
iter[0]->memt->from[0] = config->from[0];
iter[0]->memtData->memt = config->memt;
iter[0]->memtData->from[0] = config->from[0];
code = tsdbMemTableIterOpen(iter[0]);
break;
case TSDB_ITER_TYPE_STT_TOMB:
......@@ -438,10 +432,8 @@ int32_t tsdbIterOpen(const STsdbIterConfig *config, STsdbIter **iter) {
iter[0]->dataTomb->reader = config->dataReader;
code = tsdbDataTombIterOpen(iter[0]);
break;
case TSDB_ITER_TYPE_MEMT_TOMB:
ASSERTS(0, "Not implemented");
break;
default:
code = TSDB_CODE_INVALID_PARA;
ASSERTS(false, "Not implemented");
}
......@@ -453,12 +445,12 @@ int32_t tsdbIterOpen(const STsdbIterConfig *config, STsdbIter **iter) {
}
static int32_t tsdbSttTombIterClose(STsdbIter *iter) {
tTombBlockDestroy(iter->sttTomb->tData);
tTombBlockDestroy(iter->sttTomb->tombBlock);
return 0;
}
static int32_t tsdbDataTombIterClose(STsdbIter *iter) {
tTombBlockDestroy(iter->dataTomb->tData);
tTombBlockDestroy(iter->dataTomb->tombBlock);
return 0;
}
......@@ -479,9 +471,6 @@ int32_t tsdbIterClose(STsdbIter **iter) {
case TSDB_ITER_TYPE_DATA_TOMB:
tsdbDataTombIterClose(iter[0]);
break;
case TSDB_ITER_TYPE_MEMT_TOMB:
ASSERTS(false, "Not implemented");
break;
default:
ASSERT(false);
}
......@@ -502,8 +491,6 @@ int32_t tsdbIterNext(STsdbIter *iter) {
return tsdbSttTombIterNext(iter, NULL);
case TSDB_ITER_TYPE_DATA_TOMB:
return tsdbDataTombIterNext(iter, NULL);
case TSDB_ITER_TYPE_MEMT_TOMB:
return tsdbMemTableTombIterNext(iter, NULL);
default:
ASSERT(false);
}
......
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