From b2f9eeb5bbc2a09c9123bd27eec29bfc516d39f3 Mon Sep 17 00:00:00 2001
From: Alex Duan <417921451@qq.com>
Date: Mon, 14 Nov 2022 18:49:11 +0800
Subject: [PATCH] fix(query): fill operator memory leak fixed

---
 source/libs/executor/src/tfill.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/source/libs/executor/src/tfill.c b/source/libs/executor/src/tfill.c
index ddd948a6dd..c41376b2dc 100644
--- a/source/libs/executor/src/tfill.c
+++ b/source/libs/executor/src/tfill.c
@@ -513,6 +513,22 @@ void* taosDestroyFillInfo(SFillInfo* pFillInfo) {
   //    taosMemoryFreeClear(pFillInfo->pTags[i].tagVal);
   //  }
 
+  // free pFillCol
+  if (pFillInfo->pFillCol) {
+    for (int32_t i = 0; i < pFillInfo->numOfCols; i++) {
+      SFillColInfo* pCol = &pFillInfo->pFillCol[i];
+      if (!pCol->notFillCol) {
+        if (pCol->fillVal.nType == TSDB_DATA_TYPE_VARBINARY || pCol->fillVal.nType == TSDB_DATA_TYPE_VARCHAR ||
+            pCol->fillVal.nType == TSDB_DATA_TYPE_NCHAR || pCol->fillVal.nType == TSDB_DATA_TYPE_JSON) {
+          if (pCol->fillVal.pz) {
+            taosMemoryFree(pCol->fillVal.pz);
+            pCol->fillVal.pz = NULL;
+          }
+        }
+      }
+    }
+  }
+
   taosMemoryFreeClear(pFillInfo->pTags);
   taosMemoryFreeClear(pFillInfo->pFillCol);
   taosMemoryFreeClear(pFillInfo);