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[TD-5504]<fix>fix tsdbRestoreLastColumns run time bug:memory heap overflow

This commit is contained in:
lichuang 2021-07-27 10:45:53 +08:00
parent f5758a29da
commit dce3de680f
1 changed files with 3 additions and 2 deletions
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5
src/tsdb/src/tsdbMain.c
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@ -722,7 +722,8 @@ static int tsdbRestoreLastColumns(STsdbRepo *pRepo, STable *pTable, SReadH* pRea
// OK,let's load row from backward to get not-null column
for (int32_t rowId = pBlock->numOfRows - 1; rowId >= 0; rowId--) {
SDataCol *pDataCol = pReadh->pDCols[0]->cols + i;
tdAppendColVal(memRowDataBody(row), tdGetColDataOfRow(pDataCol, rowId), pCol->type, pCol->offset);
const void* pColData = tdGetColDataOfRow(pDataCol, rowId);
tdAppendColVal(memRowDataBody(row), pColData, pCol->type, pCol->offset);
//SDataCol *pDataCol = readh.pDCols[0]->cols + j;
void *value = tdGetRowDataOfCol(memRowDataBody(row), (int8_t)pCol->type, TD_DATA_ROW_HEAD_SIZE + pCol->offset);
if (isNull(value, pCol->type)) {
@ -735,7 +736,7 @@ static int tsdbRestoreLastColumns(STsdbRepo *pRepo, STable *pTable, SReadH* pRea
continue;
}
// save not-null column
uint16_t bytes = IS_VAR_DATA_TYPE(pCol->type) ? varDataTLen(tdGetColDataOfRow(pDataCol, rowId)) : TYPE_BYTES[pCol->type];
uint16_t bytes = IS_VAR_DATA_TYPE(pCol->type) ? varDataTLen(pColData) : pCol->bytes;
SDataCol *pLastCol = &(pTable->lastCols[idx]);
pLastCol->pData = malloc(bytes);
pLastCol->bytes = bytes;