From fcb555b607bffb4151661ffd9d482cf236cc587d Mon Sep 17 00:00:00 2001
From: yihaoDeng <yhdeng@taosdata.com>
Date: Thu, 3 Dec 2020 05:58:36 +0000
Subject: [PATCH] reduce mem cost

---
 src/client/src/tscProfile.c  | 2 ++
 src/client/src/tscSubquery.c | 1 +
 src/client/src/tscSystem.c   | 2 +-
 3 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/client/src/tscProfile.c b/src/client/src/tscProfile.c
index acc5acd786..18fc79c474 100644
--- a/src/client/src/tscProfile.c
+++ b/src/client/src/tscProfile.c
@@ -39,6 +39,7 @@ void tscInitConnCb(void *param, TAOS_RES *result, int code) {
     tscSlowQueryConnInitialized = true;
     tscSaveSlowQueryFp(sql, NULL);
   }
+  taos_free_result(result);
 }
 
 void tscAddIntoSqlList(SSqlObj *pSql) {
@@ -69,6 +70,7 @@ void tscSaveSlowQueryFpCb(void *param, TAOS_RES *result, int code) {
   } else {
     tscDebug("success to save slow query, code:%d", code);
   }
+  taos_free_result(result);
 }
 
 void tscSaveSlowQueryFp(void *handle, void *tmrId) {
diff --git a/src/client/src/tscSubquery.c b/src/client/src/tscSubquery.c
index 6ebbeeef41..4f5a9feae2 100644
--- a/src/client/src/tscSubquery.c
+++ b/src/client/src/tscSubquery.c
@@ -2197,6 +2197,7 @@ int32_t tscHandleInsertRetry(SSqlObj* pSql) {
 
   STableDataBlocks* pTableDataBlock = taosArrayGetP(pCmd->pDataBlocks, pSupporter->index);
   int32_t code = tscCopyDataBlockToPayload(pSql, pTableDataBlock);
+  pCmd->pDataBlocks = tscDestroyBlockArrayList(pCmd->pDataBlocks);
 
   if ((pRes->code = code)!= TSDB_CODE_SUCCESS) {
     tscQueueAsyncRes(pSql);
diff --git a/src/client/src/tscSystem.c b/src/client/src/tscSystem.c
index 9e9a00550a..dc51482ce8 100644
--- a/src/client/src/tscSystem.c
+++ b/src/client/src/tscSystem.c
@@ -147,7 +147,7 @@ void taos_init_imp(void) {
     tscObjCache = taosCacheInit(TSDB_CACHE_PTR_KEY, refreshTime / 2, false, tscFreeRegisteredSqlObj, "sqlObj");
   }
 
-  tscRefId = taosOpenRef(200, tscCloseTscObj);
+  tscRefId = taosOpenRef(500, tscCloseTscObj);
 
   // in other language APIs, taos_cleanup is not available yet.
   // So, to make sure taos_cleanup will be invoked to clean up the allocated
-- 
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