MySQL Connector/C++ Release Notes
These CMake options have been added to enable
more fine-grained specification of installation directories. All
are relative to
CMAKE_INSTALL_PREFIX
:
CMAKE_INSTALL_LIBDIR
: Library
installation directory.
CMAKE_INSTALL_INCLUDEDIR
:
Header file installation directory.
CMAKE_INSTALL_DOCDIR
:
Documentation installation directory.
(Bug #28045358)
Previously, Connector/C++ binary distributions included a
BUILDINFO.txt
file that contained
information about the build environment used to produce the
distribution. Binary distributions now include a file named
INFO_BIN
that provides similar information,
and an INFO_SRC
file that provides
information about the product version and the source repository
from which the distribution was produced. Source distributions
include the INFO_SRC
file only.
(WL #12293)
Connector/C++ now is compatible with MSVC 2017, while retaining compatibility with MSVC 2015:
Previously, Connector/C++ binary distributions were compatible with
projects built using MSVC 2015. Binary distributions now are
compatible with projects built using MSVC 2017 or 2015. DLLs
have a -vs14
suffix in their names to
reflect that they are compatible with MSVC 2015, but can
also be used in MSVC 2017 projects.
Previously, Connector/C++ source distributions could be built using MSVC 2015. Source distributions now can be built using MSVC 2017 or 2015.
Previously, the MSI installer accepted the Visual C++ Redistributable for Visual Studio 2015. The MSI installer now accepts the Visual C++ Redistributable for Visual Studio 2017 or 2015.
(WL #12611)
Installers for Connector/C++ are now available as Debian packages. See Installing Connector/C++ from a Binary Distribution. (WL #12101)
Connector/C++ now provides collection counting methods for applications that use X DevAPI for C:
mysqlx_collection_count()
: The number of
documents in a collection without filtering.
mysqlx_collection_t *c1 = mysqlx_get_collection(schema, "c1", 1); ulong64_t documents; mysqlx_collection_count(c1, &documents);
mysqlx_table_count()
: The number of rows
in a table without filtering.
mysqlx_table_t *t1 = mysqlx_get_table(schema, "t1", 1); ulong64_t rows; mysqlx_table_count(t1, &rows);
mysqlx_get_count()
: The number of
remaining cached rows held at the moment. After a row is
consumed by a fetch function, the number of cached rows
decreases.
mysqlx_stmt_t *stmt = mysqlx_sql_new(session, query, strlen(query)); mysqlx_result_t *res = mysqlx_execute(stmt); ulong64_t row_count; mysqlx_get_count(res, &row_count);
mysqlx_get_count()
is similar in all
respects to mysqlx_store_result()
except
that the behavior differs after fetching rows when reaching
zero number of rows in the cache:
mysqlx_get_count()
returns zero
through the parameter and finishes with
RESULT_OK
.
mysqlx_store_result()
does not return
anything through the parameter (which remains unchanged)
and finishes with RESULT_ERROR
.
(WL #12496)