fix commit coredump

src/tsdb/src/tsdbRWHelper.c

@@ -256,7 +256,7 @@ int tsdbCommitTableData(SRWHelper *pHelper, SCommitIter *pCommitIter, SDataCols
     TSKEY keyFirst = tsdbNextIterKey(pCommitIter->pIter);
     if (keyFirst < 0 || keyFirst > maxKey) break;  // iter over
 
-    if (pIdx->offset <= 0 || keyFirst > pIdx->maxKey) {
+    if (pIdx->len <= 0 || keyFirst > pIdx->maxKey) {
       if (tsdbProcessAppendCommit(pHelper, pCommitIter, pDataCols, maxKey) < 0) return -1;
       blkIdx = pIdx->numOfBlocks;
     } else {
@@ -340,10 +340,12 @@ int tsdbWriteCompInfo(SRWHelper *pHelper) {
       }
     }
   } else {
+    if (pIdx->len > 0) {
       pHelper->pCompInfo->delimiter = TSDB_FILE_DELIMITER;
       pHelper->pCompInfo->uid = pHelper->tableInfo.uid;
       pHelper->pCompInfo->checksum = 0;
-    ASSERT((pIdx->len - sizeof(SCompInfo) - sizeof(TSCKSUM)) % sizeof(SCompBlock) == 0);
+      ASSERT(pIdx->len > sizeof(SCompInfo) + sizeof(TSCKSUM) &&
+             (pIdx->len - sizeof(SCompInfo) - sizeof(TSCKSUM)) % sizeof(SCompBlock) == 0);
       taosCalcChecksumAppend(0, (uint8_t *)pHelper->pCompInfo, pIdx->len);
       offset = lseek(pHelper->files.nHeadF.fd, 0, SEEK_END);
       if (offset < 0) {
@@ -363,6 +365,7 @@ int tsdbWriteCompInfo(SRWHelper *pHelper) {
         return -1;
       }
     }
+  }
 
   return 0;
 }
@@ -1337,9 +1340,9 @@ static int tsdbProcessAppendCommit(SRWHelper *pHelper, SCommitIter *pCommitIter,
   int        defaultRowsInBlock = pCfg->maxRowsPerFileBlock * 4 / 5;
   SCompBlock compBlock = {0};
 
-  ASSERT(pIdx->offset <= 0 || keyFirst > pIdx->maxKey);
+  ASSERT(pIdx->len <= 0 || keyFirst > pIdx->maxKey);
   if (pIdx->hasLast) {  // append to with last block
-    ASSERT(pIdx->offset > 0);
+    ASSERT(pIdx->len > 0);
     SCompBlock *pCompBlock = blockAtIdx(pHelper, pIdx->numOfBlocks - 1);
     ASSERT(pCompBlock->last && pCompBlock->numOfRows < pCfg->minRowsPerFileBlock);
     tdResetDataCols(pDataCols);