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Merge pull request #5236 from taosdata/hotfix/TD-2978 

[TD-2978]stop query when first round with empty result
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haojun Liao 2021-02-22 18:14:53 +08:00 committed by GitHub
parent ef5e2ec5d8 5c84456773
commit 7a56edec1f
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 8 additions and 1 deletions
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9
src/client/src/tscSubquery.c
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@ -1981,7 +1981,8 @@ void tscFirstRoundRetrieveCallback(void* param, TAOS_RES* tres, int numOfRows) {
// set the parameters for the second round query process
SSqlCmd *pPCmd = &pParent->cmd;
SQueryInfo *pQueryInfo1 = tscGetQueryInfoDetail(pPCmd, 0);
int32_t resRows = pSup->numOfRows;
if (pSup->numOfRows > 0) {
SBufferWriter bw = tbufInitWriter(NULL, false);
interResToBinary(&bw, pSup->pResult, pSup->tagLen);
@ -1999,6 +2000,12 @@ void tscFirstRoundRetrieveCallback(void* param, TAOS_RES* tres, int numOfRows) {
taos_free_result(pSql);
if (resRows == 0) {
pParent->cmd.command = TSDB_SQL_RETRIEVE_EMPTY_RESULT;
(*pParent->fp)(pParent->param, pParent, 0);
return;
}
pQueryInfo1->round = 1;
tscDoQuery(pParent);
}