COL.014 modify the judgment about the character set;COL.012/COL.015 a…

COL.014 modify the judgment about the character set;COL.012/COL.015 add the judgment about the json type;ALT.001 modify the judgment about the ;fix func ShowCreateTable's error when table is partition;

修复引号中的注释判断

  remove fmt.Println debug output
  LIT.003 remove varchar, text check for primary key

  WHEN InvisibleUnicode IN SQL give suggestion
  update test cases golden file

  SELECT c1, c2, c3, FROM tb WHERE id < 1000 AND content="mytest* as test"

  go.mod third party package not update with vendor
  remove go.mod and disable GO111MODULE in Makefile

  update table1 set a = ( select a from table2 where b=1 and c=2) and b=1 where d=2
  update table1 set a = ( select a from table2 where b=1 and c=2), b=1, c=2 where d=2

  replace test-cli percent number with n% for CI

  COL.014 support NVARCHAR
  COL.013 support zero time

  use a;
  select * from ta;
  use b;
  select * from tb;