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[td-1067] fix bugs in lastrow query.

This commit is contained in:
Haojun Liao 2020-08-20 23:58:35 +08:00
parent c5cfeee493
commit 2c4aff8f52
1 changed files with 7 additions and 7 deletions
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14
src/client/src/tscFunctionImpl.c
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@ -1811,23 +1811,23 @@ static void last_dist_func_second_merge(SQLFunctionCtx *pCtx) {
* NOTE: last_row does not use the interResultBuf to keep the result
*/
static void last_row_function(SQLFunctionCtx *pCtx) {
assert(pCtx->size == 1);
assert(pCtx->size >= 1);
char *pData = GET_INPUT_CHAR(pCtx);
assignVal(pCtx->aOutputBuf, pData, pCtx->inputBytes, pCtx->inputType);
// assign the last element in current data block
assignVal(pCtx->aOutputBuf, pData + (pCtx->size - 1) * pCtx->inputBytes, pCtx->inputBytes, pCtx->inputType);
SResultInfo *pResInfo = GET_RES_INFO(pCtx);
pResInfo->hasResult = DATA_SET_FLAG;
SLastrowInfo *pInfo = (SLastrowInfo *)pResInfo->interResultBuf;
pInfo->ts = pCtx->ptsList[0];
pInfo->ts = pCtx->ptsList[pCtx->size - 1];
pInfo->hasResult = DATA_SET_FLAG;
// set the result to final result buffer
// set the result to final result buffer in case of super table query
if (pResInfo->superTableQ) {
SLastrowInfo *pInfo1 = (SLastrowInfo *)(pCtx->aOutputBuf + pCtx->inputBytes);
pInfo1->ts = pCtx->ptsList[0];
pInfo1->ts = pCtx->ptsList[pCtx->size - 1];
pInfo1->hasResult = DATA_SET_FLAG;
DO_UPDATE_TAG_COLUMNS(pCtx, pInfo1->ts);