From e554181cfb0f2641bcfcdbf4dee02ff8968099f1 Mon Sep 17 00:00:00 2001
From: Ganlin Zhao <ganlinzhao@hotmail.com>
Date: Tue, 10 Aug 2021 14:13:00 +0800
Subject: [PATCH] [TD-5921]<fix>:fix case problem in 'tbname in' syntax

---
 src/tsdb/src/tsdbRead.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/tsdb/src/tsdbRead.c b/src/tsdb/src/tsdbRead.c
index e1d40aa7d0..260c3d67dc 100644
--- a/src/tsdb/src/tsdbRead.c
+++ b/src/tsdb/src/tsdbRead.c
@@ -3468,6 +3468,7 @@ void filterPrepare(void* expr, void* param) {
         SArray *arr = (SArray *)(pCond->arr);
         for (size_t i = 0; i < taosArrayGetSize(arr); i++) {
           char* p = taosArrayGetP(arr, i);
+          strtolower(varDataVal(p), varDataVal(p));
           taosHashPut(pObj, varDataVal(p),varDataLen(p), &dummy, sizeof(dummy));
         }
      } else {