fix(tsdb): extract tomb data in stt files.

source/dnode/vnode/src/inc/tsdb.h

@@ -706,6 +706,7 @@ typedef struct SSttBlockLoadInfo {
   void      *pBlockArray;
 
   SArray   *aSttBlk;
+  SArray   *pTombBlockArray;  // tomb block array list
   int32_t   blockIndex[2];  // to denote the loaded block in the corresponding position.
   int32_t   currentLoadBlockIndex;
   int32_t   loadBlocks;

source/dnode/vnode/src/tsdb/tsdbMergeTree.c

@@ -269,6 +269,83 @@ int32_t tLDataIterOpen(struct SLDataIter *pIter, SDataFReader *pReader, int32_t
   return 0;
 }
 
+static int32_t loadSttBlockInfo(SLDataIter *pIter, SSttBlockLoadInfo* pBlockLoadInfo, uint64_t suid) {
+  TSttBlkArray* pArray = pBlockLoadInfo->pBlockArray;
+  if (TARRAY2_SIZE(pArray) <= 0) {
+    return TSDB_CODE_SUCCESS;
+  }
+
+  SSttBlk *pStart = &pArray->data[0];
+  SSttBlk *pEnd = &pArray->data[TARRAY2_SIZE(pArray) - 1];
+
+  // all identical
+  if (pStart->suid == pEnd->suid) {
+    if (pStart->suid != suid) { // no qualified stt block existed
+      taosArrayClear(pBlockLoadInfo->aSttBlk);
+      pIter->iSttBlk = -1;
+      return TSDB_CODE_SUCCESS;
+    } else {  // all blocks are qualified
+      taosArrayClear(pBlockLoadInfo->aSttBlk);
+      taosArrayAddBatch(pBlockLoadInfo->aSttBlk, pArray->data, pArray->size);
+    }
+  } else {
+    SArray *pTmp = taosArrayInit(TARRAY2_SIZE(pArray), sizeof(SSttBlk));
+    for (int32_t i = 0; i < TARRAY2_SIZE(pArray); ++i) {
+      SSttBlk* p = &pArray->data[i];
+      if (p->suid < suid) {
+        continue;
+      }
+
+      if (p->suid == suid) {
+        taosArrayPush(pTmp, p);
+      } else if (p->suid > suid) {
+        break;
+      }
+    }
+
+    taosArrayDestroy(pBlockLoadInfo->aSttBlk);
+    pBlockLoadInfo->aSttBlk = pTmp;
+  }
+
+  return TSDB_CODE_SUCCESS;
+}
+
+static int32_t loadSttTombBlockData(SSttFileReader* pSttFileReader, uint64_t suid, SSttBlockLoadInfo* pLoadInfo) {
+  if (pLoadInfo->pTombBlockArray == NULL) {
+    pLoadInfo->pTombBlockArray = taosArrayInit(4, POINTER_BYTES);
+  }
+
+  const TTombBlkArray* pBlkArray = NULL;
+  int32_t code = tsdbSttFileReadTombBlk(pSttFileReader, &pBlkArray);
+  if (code != TSDB_CODE_SUCCESS) {
+    return code;
+  }
+
+  for(int32_t j = 0; j < pBlkArray->size; ++j) {
+    STombBlk* pTombBlk = &pBlkArray->data[j];
+    if (pTombBlk->maxTbid.suid < suid) {
+      continue;  // todo use binary search instead
+    }
+
+    if (pTombBlk->minTbid.suid > suid) {
+      break;
+    }
+
+    STombBlock* pTombBlock = taosMemoryCalloc(1, sizeof(STombBlock));
+    code = tsdbSttFileReadTombBlock(pSttFileReader, pTombBlk, pTombBlock);
+    if (code != TSDB_CODE_SUCCESS) {
+      // todo handle error
+    }
+
+    void* p = taosArrayPush(pLoadInfo->pTombBlockArray, &pTombBlock);
+    if (p == NULL) {
+      return TSDB_CODE_OUT_OF_MEMORY;
+    }
+  }
+
+  return TSDB_CODE_SUCCESS;
+}
+
 int32_t tLDataIterOpen2(struct SLDataIter *pIter, SSttFileReader *pReader, int32_t iStt, int8_t backward, uint64_t suid,
                        uint64_t uid, STimeWindow *pTimeWindow, SVersionRange *pRange, SSttBlockLoadInfo *pBlockLoadInfo,
                        const char *idStr, bool strictTimeRange) {
@@ -290,51 +367,15 @@ int32_t tLDataIterOpen2(struct SLDataIter *pIter, SSttFileReader *pReader, int32
     pBlockLoadInfo->sttBlockLoaded = true;
 
     code = tsdbSttFileReadSttBlk(pIter->pReader, (const TSttBlkArray **)&pBlockLoadInfo->pBlockArray);
-    if (code) {
+    if (code != TSDB_CODE_SUCCESS) {
       return code;
     }
 
-    // only apply to the child tables, ordinary tables will not incur this filter procedure.
-    TSttBlkArray* pArray = pBlockLoadInfo->pBlockArray;
-    size_t size = pArray->size;
+    code = loadSttBlockInfo(pIter, pBlockLoadInfo, suid);
 
-    if (size >= 1) {
-      SSttBlk *pStart = &pArray->data[0];
-      SSttBlk *pEnd = &pArray->data[size - 1];
-
-      // all identical
-      if (pStart->suid == pEnd->suid) {
-        if (pStart->suid != suid) {
-          // no qualified stt block existed
-          taosArrayClear(pBlockLoadInfo->aSttBlk);
-
-          pIter->iSttBlk = -1;
-          double el = (taosGetTimestampUs() - st) / 1000.0;
-          tsdbDebug("load the last file info completed, elapsed time:%.2fms, %s", el, idStr);
-          return code;
-        } else {  // all blocks are qualified
-          taosArrayClear(pBlockLoadInfo->aSttBlk);
-          taosArrayAddBatch(pBlockLoadInfo->aSttBlk, pArray->data, pArray->size);
-        }
-      } else {
-        SArray *pTmp = taosArrayInit(size, sizeof(SSttBlk));
-        for (int32_t i = 0; i < size; ++i) {
-          SSttBlk* p = &pArray->data[i];
-          uint64_t s = p->suid;
-          if (s < suid) {
-            continue;
-          }
-
-          if (s == suid) {
-            taosArrayPush(pTmp, p);
-          } else if (s > suid) {
-            break;
-          }
-        }
-
-        taosArrayDestroy(pBlockLoadInfo->aSttBlk);
-        pBlockLoadInfo->aSttBlk = pTmp;
-      }
+    code = loadSttTombBlockData(pReader, suid, pBlockLoadInfo);
+    if (code != TSDB_CODE_SUCCESS) {
+      return code;
     }
 
     double el = (taosGetTimestampUs() - st) / 1000.0;

source/dnode/vnode/src/tsdb/tsdbRead2.c

@@ -2766,6 +2766,51 @@ static bool isValidFileBlockRow(SBlockData* pBlockData, SFileBlockDumpInfo* pDum
   return true;
 }
 
+static int32_t loadTomRecordInfoFromSttFiles(SSttBlockLoadInfo* pBlockLoadInfo, uint64_t suid,
+                                             STableBlockScanInfo* pBlockScanInfo, uint64_t maxVer) {
+  int32_t size = taosArrayGetSize(pBlockLoadInfo->pTombBlockArray);
+  if (size <= 0) {
+    return TSDB_CODE_SUCCESS;
+  }
+
+  uint64_t uid = pBlockScanInfo->uid;
+  if (pBlockScanInfo->pDelData == NULL) {
+    pBlockScanInfo->pDelData = taosArrayInit(4, sizeof(SDelData));
+  }
+
+  for(int32_t i = 0; i < size; ++i) {
+    STombBlock* pBlock = taosArrayGetP(pBlockLoadInfo->pTombBlockArray, i);
+
+    STombRecord record = {0};
+    for(int32_t j = 0; j < pBlock->suid->size; ++j) {
+      int32_t code = tTombBlockGet(pBlock, j, &record);
+      if (code != TSDB_CODE_SUCCESS) {
+        // todo handle error
+      }
+
+      if (record.suid < suid) {
+        continue;
+      }
+
+      // todo use binary search instead here
+      if (record.uid < uid) {
+        continue;
+      }
+
+      if (record.uid > uid) {
+        break;
+      }
+
+      if (record.version <= maxVer) {
+        SDelData delData = {.version = record.version, .sKey = record.skey, .eKey = record.ekey};
+        taosArrayPush(pBlockScanInfo->pDelData, &delData);
+      }
+    }
+  }
+
+  return TSDB_CODE_SUCCESS;
+}
+
 static bool initLastBlockReader(SLastBlockReader* pLBlockReader, STableBlockScanInfo* pScanInfo, STsdbReader* pReader) {
   // the last block reader has been initialized for this table.
   if (pLBlockReader->uid == pScanInfo->uid) {
@@ -2776,7 +2821,6 @@ static bool initLastBlockReader(SLastBlockReader* pLBlockReader, STableBlockScan
     tMergeTreeClose(&pLBlockReader->mergeTree);
   }
 
-  initMemDataIterator(pScanInfo, pReader);
   pLBlockReader->uid = pScanInfo->uid;
 
   STimeWindow w = pLBlockReader->window;
@@ -2788,14 +2832,20 @@ static bool initLastBlockReader(SLastBlockReader* pLBlockReader, STableBlockScan
 
   tsdbDebug("init last block reader, window:%" PRId64 "-%" PRId64 ", uid:%" PRIu64 ", %s", w.skey, w.ekey,
             pScanInfo->uid, pReader->idStr);
-  int32_t code = tMergeTreeOpen2(&pLBlockReader->mergeTree, (pLBlockReader->order == TSDB_ORDER_DESC),
-                                pReader->pTsdb, pReader->suid, pScanInfo->uid, &w, &pLBlockReader->verRange,
-                                pLBlockReader->pInfo, false, pReader->idStr, false, pReader->status.pLDataIter,
-                                pReader->status.pCurrentFileset);
+  int32_t code =
+      tMergeTreeOpen2(&pLBlockReader->mergeTree, (pLBlockReader->order == TSDB_ORDER_DESC), pReader->pTsdb,
+                      pReader->suid, pScanInfo->uid, &w, &pLBlockReader->verRange, pLBlockReader->pInfo, false,
+                      pReader->idStr, false, pReader->status.pLDataIter, pReader->status.pCurrentFileset);
+  if (code != TSDB_CODE_SUCCESS) {
+    return false;
+  }
+
+  code = loadTomRecordInfoFromSttFiles(pLBlockReader->pInfo, pReader->suid, pScanInfo, pReader->verRange.maxVer);
   if (code != TSDB_CODE_SUCCESS) {
     return false;
   }
 
+  initMemDataIterator(pScanInfo, pReader);
   return nextRowFromLastBlocks(pLBlockReader, pScanInfo, &pReader->verRange);
 }
 
@@ -3212,8 +3262,8 @@ static int32_t moveToNextFile(STsdbReader* pReader, SBlockNumber* pBlockNum, SAr
   STFileObj* pTombFileObj = pReader->status.pCurrentFileset->farr[3];
   if (pTombFileObj!= NULL) {
       const TTombBlkArray* pBlkArray = NULL;
-
       int32_t code = tsdbDataFileReadTombBlk(pReader->pFileReader, &pBlkArray);
+
       int32_t i = 0, j = 0;
 
       // todo find the correct start position.

tests/system-test/1-insert/delete_stable.py

@@ -27,7 +27,7 @@ class TDTestCase:
     def init(self, conn, logSql, replicaVar=1):
         self.replicaVar = int(replicaVar)
         tdLog.debug("start to execute %s" % __file__)
-        tdSql.init(conn.cursor())
+        tdSql.init(conn.cursor(), True)
         self.dbname = 'db_test'
         self.ns_dbname = 'ns_test'
         self.us_dbname = 'us_test'