diff --git a/.appveyor.yml b/.appveyor.yml
index fe4816688b..ee1dc91767 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -1,30 +1,49 @@
 version: 1.0.{build}
-os: Visual Studio 2015
+image: 
+  - Visual Studio 2015
+  - macos
 environment:
   matrix:
     - ARCH: amd64
     - ARCH: x86
+matrix:
+  exclude:
+    - image: macos
+      ARCH: x86
+for:
+  - 
+    matrix:
+      only:
+        - image: Visual Studio 2015
+    clone_folder: c:\dev\TDengine
+    clone_depth: 1
 
-clone_folder: c:\dev\TDengine
-clone_depth: 1
+    init:
+      - call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" %ARCH%
 
-init:
-  - call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" %ARCH%
+    before_build:
+      - cd c:\dev\TDengine
+      - md build
 
-before_build:
-  - cd c:\dev\TDengine
-  - md build
-
-build_script:
-  - cd build
-  - cmake -G "NMake Makefiles" ..
-  - nmake install
+    build_script:
+      - cd build
+      - cmake -G "NMake Makefiles" ..
+      - nmake install
+  -
+    matrix:
+      only:
+        - image: macos
+    clone_depth: 1
 
+    build_script:
+      - mkdir debug
+      - cd debug
+      - cmake .. > /dev/null
+      - make > /dev/null
 notifications:
 - provider: Email
   to:
   - sangshuduo@gmail.com
-  
   on_build_success: true
   on_build_failure: true
   on_build_status_changed: true
diff --git a/.drone.yml b/.drone.yml
new file mode 100644
index 0000000000..4009b563b4
--- /dev/null
+++ b/.drone.yml
@@ -0,0 +1,188 @@
+---
+kind: pipeline
+name: test_amd64
+
+platform:
+  os: linux
+  arch: amd64
+
+steps:
+- name: build
+  image: gcc
+  commands:
+  - apt-get update
+  - apt-get install -y cmake build-essential git
+  - mkdir debug
+  - cd debug
+  - cmake .. 
+  - make 
+  when:
+    branch:
+    - develop
+    - master
+
+- name: smoke_test
+  image: python:3.8
+  commands:
+  - pip3 install psutil
+  - pip3 install guppy3
+  - pip3 install src/connector/python/linux/python3/
+  - cd tests
+  - ./test-all.sh smoke
+  when:
+    branch:
+    - develop
+    - master
+
+
+- name: crash_gen
+  image: python:3.8
+  commands:
+  - pip3 install requests
+  - pip3 install src/connector/python/linux/python3/
+  - pip3 install psutil
+  - pip3 install guppy3
+  - cd tests/pytest 
+  - ./crash_gen.sh -a -p -t 4 -s 2000
+  when:
+    branch:
+    - develop
+    - master
+
+
+---
+kind: pipeline
+name: test_arm64
+
+platform:
+  os: linux
+  arch: arm64
+
+steps:
+- name: build
+  image: gcc
+  commands:
+  - apt-get update
+  - apt-get install -y cmake build-essential
+  - mkdir debug
+  - cd debug
+  - cmake .. -DCPUTYPE=aarch64 > /dev/null
+  - make 
+  when:
+    branch:
+    - develop
+    - master
+---
+kind: pipeline
+name: test_arm
+
+platform:
+  os: linux
+  arch: arm
+
+steps:
+- name: build
+  image: gcc
+  commands:
+  - apt-get update
+  - apt-get install -y cmake build-essential
+  - mkdir debug
+  - cd debug
+  - cmake .. -DCPUTYPE=aarch32 > /dev/null
+  - make 
+  when:
+    branch:
+    - develop
+    - master
+
+---
+kind: pipeline
+name: build_trusty
+
+platform:
+  os: linux
+  arch: amd64
+
+steps:
+- name: build
+  image: ubuntu:trusty
+  commands:
+  - apt-get update
+  - apt-get install -y gcc cmake3 build-essential git binutils-2.26
+ 
+  - mkdir debug
+  - cd debug
+  - cmake .. 
+  - make 
+  when:
+    branch:
+    - develop
+    - master
+
+---
+kind: pipeline
+name: build_xenial
+
+platform:
+  os: linux
+  arch: amd64
+
+steps:
+- name: build
+  image: ubuntu:xenial
+  commands:
+  - apt-get update
+  - apt-get install -y gcc cmake build-essential
+  - mkdir debug
+  - cd debug
+  - cmake .. 
+  - make 
+  when:
+    branch:
+    - develop
+    - master
+
+---
+kind: pipeline
+name: build_bionic
+platform:
+  os: linux
+  arch: amd64
+
+steps:
+- name: build
+  image: ubuntu:bionic
+  commands:
+  - apt-get update
+  - apt-get install -y gcc cmake build-essential
+  - mkdir debug
+  - cd debug
+  - cmake .. 
+  - make 
+  when:
+    branch:
+    - develop
+    - master
+
+---
+kind: pipeline
+name: goodbye
+
+platform:
+  os: linux
+  arch: amd64
+
+steps:
+- name: 64-bit
+  image: alpine
+  commands:
+  - echo 64-bit is good.
+  when:
+    branch:
+    - develop
+    - master
+
+
+depends_on:
+- test_arm64
+- test_amd64
\ No newline at end of file
diff --git a/README.md b/README.md
index 45a955f458..78f902babe 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-[![Build Status](https://travis-ci.org/taosdata/TDengine.svg?branch=master)](https://travis-ci.org/taosdata/TDengine)
+[![Build Status](https://cloud.drone.io/api/badges/taosdata/TDengine/status.svg?ref=refs/heads/master)](https://cloud.drone.io/taosdata/TDengine)
 [![Build status](https://ci.appveyor.com/api/projects/status/kf3pwh2or5afsgl9/branch/master?svg=true)](https://ci.appveyor.com/project/sangshuduo/tdengine-2n8ge/branch/master)
 [![Coverage Status](https://coveralls.io/repos/github/taosdata/TDengine/badge.svg?branch=develop)](https://coveralls.io/github/taosdata/TDengine?branch=develop)
 [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/4201/badge)](https://bestpractices.coreinfrastructure.org/projects/4201)
diff --git a/src/client/src/tscParseInsert.c b/src/client/src/tscParseInsert.c
index ae6e2430b7..79ceb81cbc 100644
--- a/src/client/src/tscParseInsert.c
+++ b/src/client/src/tscParseInsert.c
@@ -928,6 +928,42 @@ static int32_t tscCheckIfCreateTable(char **sqlstr, SSqlObj *pSql, char** boundC
       return tscSQLSyntaxErrMsg(pCmd->payload, ") expected", sToken.z);
     }
 
+    /* parse columns after super table tags values.
+     * insert into table_name using super_table(tag_name1, tag_name2) tags(tag_val1, tag_val2)
+     * (normal_col1, normal_col2) values(normal_col1_val, normal_col2_val);
+     * */
+    index = 0;
+    sToken = tStrGetToken(sql, &index, false);
+    sql += index;
+    int numOfColsAfterTags = 0;
+    if (sToken.type == TK_LP) {
+      if (*boundColumn != NULL) {
+        return tscSQLSyntaxErrMsg(pCmd->payload, "bind columns again", sToken.z);
+      } else {
+        *boundColumn = &sToken.z[0];
+      }
+
+      while (1) {
+        index = 0;
+        sToken = tStrGetToken(sql, &index, false);
+
+        if (sToken.type == TK_RP) {
+          break;
+        }
+
+        sql += index;
+        ++numOfColsAfterTags;
+      }
+
+      if (numOfColsAfterTags == 0 && (*boundColumn) != NULL) {
+        return TSDB_CODE_TSC_INVALID_SQL;
+      }
+
+      sToken = tStrGetToken(sql, &index, false);
+    }
+
+    sql = sToken.z;
+
     if (tscValidateName(&tableToken) != TSDB_CODE_SUCCESS) {
       return tscInvalidSQLErrMsg(pCmd->payload, "invalid table name", *sqlstr);
     }
diff --git a/tests/script/general/parser/function.sim b/tests/script/general/parser/function.sim
index 9165b7e98e..65058333fb 100644
--- a/tests/script/general/parser/function.sim
+++ b/tests/script/general/parser/function.sim
@@ -393,6 +393,19 @@ if $rows != 24 then
   return -1
 endi
 
+print ========================> TD-3948
+sql drop table if exists meters
+sql create stable meters (ts timestamp, current float, voltage int, phase float) tags (location binary(64), groupId int);
+sql_error insert into td3948Err1(phase) using meters tags ("Beijng.Chaoyang", 2) (ts, current) values (now, 10.2);
+sql_error insert into td3948Err2(phase, voltage) using meters tags ("Beijng.Chaoyang", 2) (ts, current) values (now, 10.2);
+sql_error insert into td3948Err3(phase, current) using meters tags ("Beijng.Chaoyang", 2) (ts, current) values (now, 10.2);
+sql insert into td3948 using meters tags ("Beijng.Chaoyang", 2) (ts, current) values (now, 10.2);
+sql select count(ts) from td3948;
+if $rows != 1 then
+  print expect 1, actual:$rows
+  return -1
+endi
+
 print ========================> TD-2740
 sql drop table if exists m1;
 sql create table m1(ts timestamp, k int) tags(a int);