From c13cea4f444d538267259d1eb411667784175082 Mon Sep 17 00:00:00 2001
From: yihaoDeng <luomoxyz@126.com>
Date: Mon, 27 Feb 2023 14:34:38 +0800
Subject: [PATCH 1/2] fix: avoid filter slow when filter not exist value

---
 source/dnode/vnode/src/meta/metaQuery.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/source/dnode/vnode/src/meta/metaQuery.c b/source/dnode/vnode/src/meta/metaQuery.c
index 4b1163bb11..d338237314 100644
--- a/source/dnode/vnode/src/meta/metaQuery.c
+++ b/source/dnode/vnode/src/meta/metaQuery.c
@@ -1301,6 +1301,7 @@ int32_t metaFilterTableIds(SMeta *pMeta, SMetaFltParam *param, SArray *pUids) {
 
   /// src:   [[suid, cid1, type1]....[suid, cid2, type2]....[suid, cid3, type3]...]
   /// target:                        [suid, cid2, type2]
+  int diffCidCount = 0;
   do {
     void   *entryKey = NULL, *entryVal = NULL;
     int32_t nEntryKey, nEntryVal;
@@ -1317,7 +1318,9 @@ int32_t metaFilterTableIds(SMeta *pMeta, SMetaFltParam *param, SArray *pUids) {
     if (p == NULL) break;
 
     if (p->type != pCursor->type || p->suid != pCursor->suid || p->cid != pCursor->cid) {
-      if (found == true) break;
+      if (found == true) break;  //
+      if (diffCidCount > TRY_ERROR_LIMIT) break;
+      diffCidCount++;
       count++;
       valid = param->reverse ? tdbTbcMoveToPrev(pCursor->pCur) : tdbTbcMoveToNext(pCursor->pCur);
       if (valid < 0) {

From d9f8a84a55d8ddbbcba4077bc080c07de5b2a11b Mon Sep 17 00:00:00 2001
From: yihaoDeng <luomoxyz@126.com>
Date: Mon, 27 Feb 2023 16:03:49 +0800
Subject: [PATCH 2/2] fix: avoid filter slow when filter not exist value

---
 tests/script/tsim/tagindex/add_index.sim | 55 ++++++++++++++++++++++--
 1 file changed, 51 insertions(+), 4 deletions(-)

diff --git a/tests/script/tsim/tagindex/add_index.sim b/tests/script/tsim/tagindex/add_index.sim
index 4e883ef150..cfbec90542 100644
--- a/tests/script/tsim/tagindex/add_index.sim
+++ b/tests/script/tsim/tagindex/add_index.sim
@@ -7,7 +7,7 @@ print ======== step0
 $dbPrefix = ta_3_db
 $tbPrefix = ta_3_tb
 $mtPrefix = ta_3_mt
-$tbNum = 100 
+$tbNum = 500 
 $rowNum = 20
 $totalNum = 200
 
@@ -26,9 +26,10 @@ endi
 print =============== create child table
 
 $i = 0 
+$val = 1
 while $i < $tbNum 
     $tb = $tbPrefix . $i 
-    sql create table $tb using $mtPrefix tags( $i , $i , $i , $i , $i );
+    sql create table $tb using $mtPrefix tags( $i , $i , $i , $i , $val );
     $i = $i + 1
 endw
 
@@ -49,6 +50,7 @@ endw
 
 
 sql create index ti2 on $mtPrefix (t2)
+sql create index ti5 on $mtPrefix (t5)
 
 print ==== test name conflict
 # 
@@ -120,6 +122,53 @@ while $i < $tbNum
   $i = $i + 1
 endw
 
+
+
+# test special boundary condtion 
+print ===== test operator low on ti5 
+# great equal than 
+sql select * from $mtPrefix where t5 < 0 ;
+if $rows != 0 then
+  return -1
+endi
+
+print ===== test operator lower equal on ti5 
+# great equal than 
+sql select * from $mtPrefix where t5 <= $val ;
+if $rows != $tbNum then
+  return -1
+endi
+
+print ===== test operator equal on ti5 
+# great equal than 
+sql select * from $mtPrefix where t5 = $val ;
+if $rows != $tbNum then
+  return -1
+endi
+
+print ===== test operator great equal on ti5 
+# great equal than 
+sql select * from $mtPrefix where t5 >= $val ;
+if $rows != $tbNum then
+  return -1
+endi
+
+print ===== test operator great than on ti5 
+# great equal than 
+sql select * from $mtPrefix where t5 > $val ;
+if $rows != 0 then
+  return -1
+endi
+
+print ===== test operator great on ti5 
+# great equal than 
+sql select * from $mtPrefix where t5 > $val + 1 ;
+if $rows != 0 then
+  return -1
+endi
+
+sql drop index ti5
+
 print ===== add table after index created
 $interval = $tbNum + $tbNum 
 $i = $interval  
@@ -130,8 +179,6 @@ while $i < $limit
     $i = $i + 1
 endw
 
-
-
 print ===== add table after index created (opeator  great equal than)
 # great equal than 
 $i = $interval