MySQL Connector/ODBC Release Notes
Added a lock in the ENV
structure against
simultaneous accesses to an environment handle's connection
list, in order to avoid memory access issues that might occur
when multiple threads share the same environment handle.
(Bug #17240611, Bug #69864)
A memory leak occurred in
fetch_varlength_columns()
while calling
SQLExecDirect()
, because freeing
result_bind
buffers requires
field_count
, which was set to
“0” when
mysql_stmt_free_result()
was called. This fix
frees result_bind
buffers before calling
mysql_stmt_free_result()
.
(Bug #17441296)
A program using parameter markers might crash with a
segmentation fault. To avoid the problem, this fix changes the
argument length
in the function
convert_c_type2str()
to be a pointer to a
long integer.
(Bug #17421620, Bug #69733)
Memory leaks occurred in SQLPrepare()
and
SQLExecDirect()
when
SQLBindParamater
was used on the SQL
statements. This fix frees previous results of
mysql_stmt_result_metadata()
in order to
prevent the memory leaks.
(Bug #17400483, Bug #70113)
The exit condition for a for
loop in
stringutil.c
is changed to avoid a possible
out-of-bounds error and the associated reports by Valgrind.
(Bug #17397596, Bug #64105)
Microsoft Visual Studio 2010 crashed when reading rows from any table in Server Explorer with connections to DSNs made by Connector/ODBC. (Bug #17304031, Bug #69950)
When SQL TIME
data was converted to the C
data type of TIMESTAMP
, if the value of the
hour
field is greater than 24, the date
fields did not get set to the current date and the
fraction
field for seconds did not get set to
zero as required by the ODBC specifications.
(Bug #17016839, Bug #69545)
When trying to create a linked server in Micrsoft SQL Server 2008 to a MySQL server set up with Connector/ODBC as a DSN, the Microsoft SQL Server (if it is a 64-bit version) crashed or the linked server suffered a catastrophic failure (if a 32-bit version of the Microsoft SQL Server is used). (Bug #16604346, Bug #63386)
When reading TIME
column data using the
SQLGetData
method into the
SQL_C_TYPE_TIME
datatype, errors occurred
when the time string contained more than 6-digits (e.g.,
120:53:44).
(Bug #16176981, Bug #67793)
When called after SQLPrepare
, the funciton
SQLMoreResults
returned
SQL_ERROR
, instead of
SQL_NO_DATA
as required by the ODBC
specification.
(Bug #16101282, Bug #67920)
Connector/ODBC used the “;” character instead of a null byte (“\0”) to terminate keyword-value pairs in attribute strings. (Bug #15940689, Bug #66548)
When using the Unicode-enabled version of the Connector/ODBC driver to connect to any MySQL server of version 5.5.2 or older, all statements failed with the error message “Server does not support 4-byte encoded UTF8 characters.” (Bug #14838690, Bug #67428)
The configured values of a DSN's parameters overrode the values provided through the connection string, instead of the other way round. (Bug #11760574, Bug #52996)