The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
user who changed it.
In Git this functionality is different and can be done with Git attribute
ident. These need to be defined manually for each file in the
.gitattributes file and are afterwards replaced with 40-character
hexadecimal blob object name which is based only on the particular file
contents.
This patch simplifies handling of $Id$ keywords by removing them since
they are not used anymore.
This is done in two steps:
- the ODBCVER has to be rased to 0x0300 which corresponds to Sql
Server 9, otherwise the client will not recognize several SQL
datatypes
- additionally the config scripts was tweaked so then ODBCVER
can be overridden, that still allows enabling compatibility
with lower versions
Bug #67437 might be fixed by this as well.
For unixODBC, use ODBC version as defined by it (as of v2.2.14 it is 3.5).
This allows us to use newer features like SQL_DESC_OCTET_LENGTH (which
returns the number of bytes required to store the data). This fixes the issue
in #60616. If the newer version is not available, over-allocate to accomodate
4-byte Unicode characters for CHAR and VARCHAR datatypes (and their Wide
counterparts).
version.
Fixed a couple of failing tests.
The ODBC extension did not support WVARCHAR. WVARCHAR ends up being handled by
the default handler where vallen is set by the driver to the actual bytes
needed for the field. If it is larger than default-lrl then the output is
corrupted (reading past the buffer) because the return functions don't expect
that to happen. The patch add support to handle WVARCHAR just like a regular
VARCHAR.
