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[td-225]fix memory leak.

This commit is contained in:
Haojun Liao 2021-04-25 17:38:28 +08:00
parent 400e64aa50
commit cd683cfc1f
1 changed files with 4 additions and 1 deletions
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5
src/client/src/tscSQLParser.c
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@ -7360,6 +7360,7 @@ int32_t exprTreeFromSqlExpr(SSqlCmd* pCmd, tExprNode **pExpr, const tSqlExpr* pS
if (pSqlExpr->pRight != NULL) {
int32_t ret = exprTreeFromSqlExpr(pCmd, &pRight, pSqlExpr->pRight, pQueryInfo, pCols, uid);
if (ret != TSDB_CODE_SUCCESS) {
tExprTreeDestroy(pLeft, NULL);
return ret;
}
}
@ -7369,7 +7370,9 @@ int32_t exprTreeFromSqlExpr(SSqlCmd* pCmd, tExprNode **pExpr, const tSqlExpr* pS
return TSDB_CODE_SUCCESS;
}
if (pSqlExpr->pLeft == NULL) {
if (pSqlExpr->pLeft == NULL) { // it is the leaf node
assert(pSqlExpr->pRight == NULL);
if (pSqlExpr->type == SQL_NODE_VALUE) {
*pExpr = calloc(1, sizeof(tExprNode));
(*pExpr)->nodeType = TSQL_NODE_VALUE;