From 1447d1d55c036ac5f050e3072e01d06d33f5200d Mon Sep 17 00:00:00 2001
From: yihaoDeng <luomoxyz@126.com>
Date: Tue, 15 Aug 2023 00:40:12 +0000
Subject: [PATCH] rebuild index at tag0

---
 include/os/osRand.h                  |  2 ++
 source/dnode/mnode/impl/src/mndStb.c |  4 +++-
 source/os/src/osRand.c               | 17 +++++++++++++----
 3 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/include/os/osRand.h b/include/os/osRand.h
index 27d07e8c6f..5d907bba15 100644
--- a/include/os/osRand.h
+++ b/include/os/osRand.h
@@ -32,6 +32,8 @@ void     taosSeedRand(uint32_t seed);
 uint32_t taosRand(void);
 uint32_t taosRandR(uint32_t* pSeed);
 void     taosRandStr(char* str, int32_t size);
+void     taosRandStr2(char* str, int32_t size);
+
 uint32_t taosSafeRand(void);
 
 #ifdef __cplusplus
diff --git a/source/dnode/mnode/impl/src/mndStb.c b/source/dnode/mnode/impl/src/mndStb.c
index 03b05f8c82..ccfad404d8 100644
--- a/source/dnode/mnode/impl/src/mndStb.c
+++ b/source/dnode/mnode/impl/src/mndStb.c
@@ -866,8 +866,10 @@ static int32_t mndCreateStb(SMnode *pMnode, SRpcMsg *pReq, SMCreateStbReq *pCrea
   mInfo("trans:%d, used to create stb:%s", pTrans->id, pCreate->name);
   if (mndBuildStbFromReq(pMnode, &stbObj, pCreate, pDb) != 0) goto _OVER;
 
+  char randStr[16] = {0};
+  taosRandStr2(randStr, tListLen(randStr) - 1);
   SSchema *pSchema = &(stbObj.pTags[0]);
-  sprintf(fullIdxName, "%s.%s_default", pDb->name, pSchema->name);
+  sprintf(fullIdxName, "%s.%s_%s", pDb->name, pSchema->name, randStr);
 
   SSIdx idx = {0};
   if (mndAcquireGlobalIdx(pMnode, fullIdxName, SDB_IDX, &idx) == 0 && idx.pIdx != NULL) {
diff --git a/source/os/src/osRand.c b/source/os/src/osRand.c
index 83c36a422d..9cb6f6e52a 100644
--- a/source/os/src/osRand.c
+++ b/source/os/src/osRand.c
@@ -27,11 +27,11 @@ void taosSeedRand(uint32_t seed) { return srand(seed); }
 
 uint32_t taosRand(void) {
 #ifdef WINDOWS
-    unsigned int pSeed;
-    rand_s(&pSeed);
-    return pSeed;
+  unsigned int pSeed;
+  rand_s(&pSeed);
+  return pSeed;
 #else
-    return rand();
+  return rand();
 #endif
 }
 
@@ -80,6 +80,15 @@ void taosRandStr(char* str, int32_t size) {
   const char* set = "abcdefghijklmnopqrstuvwxyz0123456789-_.";
   int32_t     len = 39;
 
+  for (int32_t i = 0; i < size; ++i) {
+    str[i] = set[taosRand() % len];
+  }
+}
+
+void taosRandStr2(char* str, int32_t size) {
+  const char* set = "abcdefghijklmnopqrstuvwxyz0123456789";
+  int32_t     len = 36;
+
   for (int32_t i = 0; i < size; ++i) {
     str[i] = set[taosRand() % len];
   }
-- 
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