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Merge pull request #5375 from taosdata/hotfix/TD-3196 

[TD-3196]client crashes for stddev query with NULL tag value
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haojun Liao 2021-03-12 10:13:28 +08:00 committed by GitHub
parent 9a42050b99 af866a4769
commit 776c80a7cc
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1 changed files with 5 additions and 1 deletions
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6
src/client/src/tscSubquery.c
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@ -1941,7 +1941,11 @@ void tscFirstRoundRetrieveCallback(void* param, TAOS_RES* tres, int numOfRows) {
// tag or group by column
if (TSDB_COL_IS_TAG(pExpr->colInfo.flag) || pExpr->functionId == TSDB_FUNC_PRJ) {
memcpy(p + offset, row[i], length[i]);
if (row[i] == NULL) {
setNull(p + offset, pExpr->resType, pExpr->resBytes);
} else {
memcpy(p + offset, row[i], length[i]);
}
offset += pExpr->resBytes;
}
}