anchor.diff:  . Close the portal.
   
   There are a lot of PostgreSQL data types, but few primative data types in
  -Python. During the BIND step, a PostgreSQL data type has to be assigned to each query parameter. This is impossible to work out because, say, a Python
  +Python. A PostgreSQL data type has to be assigned to each query parameter,
  +which is impossible to work out in all cases because, say, a Python
   `int` could be any of the PostgreSQL integer types. pg8000's solution to this
   problem is to send every parameter with the PostgreSQL type `unknown`. This
   forces the server to make a guess about the type. It's fairly good at doing
   this, so most queries '`just work`'. However, sometimes you may need to do an
   explicit cast in the SQL query to get things to work.
  +
  +In the FEBE protocol, each query parameter can be sent to the server either as
  +binary or text according to the format code (FC). In pg8000 the FC depends
  +on the type of the value. Here is a table of some common types and their FC:
  +
  +.Python Type to FC Mapping
  +|===
  +| Python Type                       | FC
  +
  +| None                              | binary
  +| bool                              | binary
  +| int                               | text
  +| float                             | binary
  +| datetime.date                     | text
  +| datetime.time                     | text
  +| datetime.datetime (naive)         | binary
  +| datetime.datetime (with timezone) | binary
  +| datetime.timedelta                | binary
  +| decimal.Decimal                   | text
  +| uuid                              | binary
  +|===
   
   Since pg8000 uses prepared statements implicitly, there's nothing to be gained
   by using them explicitly with the SQL PREPARE, EXECUTE and DEALLOCATE keywords.
  
positive.code: and the docs will appear in `build/sphinx/html`.
  
  
  === Doing A Release Of pg8000
  
  Run `tox` to make sure all tests pass, then update `doc/release_notes.rst` then
  do:
  
negative.code: `tox`
  
  
  == Performance Tests
  
  To run the performance tests from the `pg8000` directory:
  
   python -m pg8000.tests.performance
  
  
  == Stress Test
  
  There's a stress test that is run by doing:
  
  