anchor.diff:  |`FLOAT64`
   a|_n/a_
   
  -|`CHAR(M)]`
  +|`CHAR[(M)]`
   |`STRING`
   a|_n/a_
   
  -|`VARCHAR(M)]`
  +|`VARCHAR[(M)]`
   |`STRING`
   a|_n/a_
   
  -|`BINARY(M)]`
  -|`STRING`
  -a|_n/a_
  -
  -|`VARBINARY(M)]`
  -|`STRING`
  +|`BINARY[(M)]`
  +|`BYTES`
  +a|_n/a_
  +
  +|`VARBINARY[(M)]`
  +|`BYTES`
   a|_n/a_
   
   |`TINYBLOB`
  -|`STRING`
  +|`BYTES`
   a|_n/a_
   
   |`TINYTEXT`
  
positive.code: a|_n/a_
  
  |`LONGBLOB`
  |`STRING`
  a|_n/a_
  
  |`LONGTEXT`
  
negative.code: a|_n/a_
  
  |`BLOB`
  |`BYTES`
  a|_n/a_
  
  |`TEXT`
  