We need to clone them, if there will be a transformation (convert_to_xxx)
which will change the origin.
- Make mysqlnd more compatible to libmysql, in this case if the execute of
a statement fails set the state of the statement back to PREPARED
- A test case to check the case of a failing statement.
- Clean up a bit a type mess - 4 types less. No need to have aliases
for the same thing (unification is the name).
- New macro for Johannes mysqlnd_stmt_ro_result_metadata
----------------------------------------------------------------------
- Fix BIT problem for BIT values represented with 5 bytes. Typo.
- Make it possible with an ini variable to switch off/on statistics
collection.
- Compile-out debug checking of uneaten data from the line, when the
build is release. According to callgrind this was eating some percentage.
