path: root/lib/odbc/doc/src/notes.xml

<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE chapter SYSTEM "chapter.dtd">

<chapter>
  <header>
    <copyright>
      <year>2004</year><year>2013</year>
      <holder>Ericsson AB. All Rights Reserved.</holder>
    </copyright>
    <legalnotice>
      The contents of this file are subject to the Erlang Public License,
      Version 1.1, (the "License"); you may not use this file except in
      compliance with the License. You should have received a copy of the
      Erlang Public License along with this software. If not, it can be
      retrieved online at http://www.erlang.org/.

      Software distributed under the License is distributed on an "AS IS"
      basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
      the License for the specific language governing rights and limitations
      under the License.

    </legalnotice>
    
    <title>ODBC Release Notes</title>
    <prepared>otp_appnotes</prepared>
    <docno>nil</docno>
    <date>nil</date>
    <rev>nil</rev>
    <file>notes.xml</file>
  </header>
  <p>This document describes the changes made to the odbc application.
  </p>

  <section><title>ODBC 2.10.20</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Application upgrade (appup) files are corrected for the
	    following applications: </p>
          <p>
	    <c>asn1, common_test, compiler, crypto, debugger,
	    dialyzer, edoc, eldap, erl_docgen, et, eunit, gs, hipe,
	    inets, observer, odbc, os_mon, otp_mibs, parsetools,
	    percept, public_key, reltool, runtime_tools, ssh,
	    syntax_tools, test_server, tools, typer, webtool, wx,
	    xmerl</c></p>
          <p>
	    A new test utility for testing appup files is added to
	    test_server. This is now used by most applications in
	    OTP.</p>
          <p>
	    (Thanks to Tobias Schlager)</p>
          <p>
	    Own Id: OTP-11744</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Removed warnings at compile time by adding missing
	    include file (Thanks to Anthony Ramine)</p>
          <p>
	    Own Id: OTP-11569</p>
        </item>
        <item>
          <p>
	    Apple has removed iODBC in OS X 10.9 Mavericks, but
	    forgot to remove all binaries, adopt configure so that
	    will be possible to build odbc with own installation.</p>
          <p>
	    Own Id: OTP-11630</p>
        </item>
      </list>
    </section>

</section>

<section><title>ODBC 2.10.19</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Updated configure test for header files sql.h and
	    sqlext.h to function correctly on windows.</p>
          <p>
	    Own Id: OTP-11574</p>
        </item>
      </list>
    </section>

</section>

<section><title>ODBC 2.10.18</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Configure now also checks for the existence of the sql.h
	    header file</p>
          <p>
	    Own Id: OTP-11483</p>
        </item>
      </list>
    </section>

</section>

<section><title>ODBC 2.10.17</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    The format of the xml source for documentation is
	    corrected in order to conform to the DTDs and to pass
	    xmllint without errors.</p>
          <p>
	    Own Id: OTP-11193</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Introduced functionality for inspection of system and
	    build configuration.</p>
          <p>
	    Own Id: OTP-11196</p>
        </item>
        <item>
          <p>
	    Prevent odbcserver crash if it's executed and supplied
	    incorrect data to stdin. Thanks to Sergei Golovan.</p>
          <p>
	    Own Id: OTP-11233</p>
        </item>
      </list>
    </section>

</section>

<section><title>ODBC 2.10.16</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Fix a 64bit related bug in odbcserver. Thanks to Satoshi
	    Kinoshita.</p>
          <p>
	    Own Id: OTP-10993</p>
        </item>
        <item>
	    <p> Postscript files no longer needed for the generation
	    of PDF files have been removed. </p>
          <p>
	    Own Id: OTP-11016</p>
        </item>
        <item>
          <p>
	    Fix checking for odbc in standard locations when
	    "with-odbc" flag present. Thanks to Alexey Saltanov.</p>
          <p>
	    Own Id: OTP-11126</p>
        </item>
      </list>
    </section>

</section>

<section><title>ODBC 2.10.15</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Fixed calling odbc:param_query/3 and odbc:param_query/4
	    with unparameterized query string and empty parameters
	    list. Thanks to Danil Onishchenko.</p>
          <p>
	    Own Id: OTP-10798</p>
        </item>
      </list>
    </section>

</section>

<section><title>ODBC 2.10.14</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Under Unix enable TCP_NODELAY to disable Nagel's socket
	    algorithm. Thanks to Andy Richards</p>
          <p>
	    Impact: Performance gain on Unix systems</p>
          <p>
	    Own Id: OTP-10506</p>
        </item>
        <item>
          <p>
	    Added extended_errors option to ODBC</p>
          <p>
	    When enabled, this option alters the return code of ODBC
	    operations that produce errors to include the ODBC error
	    code as well as the native error code, in addition to the
	    ODBC reason field which is returned by default. Thanks to
	    Bernard Duggan.</p>
          <p>
	    Own Id: OTP-10603</p>
        </item>
        <item>
	    <p>Where necessary a comment stating encoding has been
	    added to Erlang files. The comment is meant to be removed
	    in Erlang/OTP R17B when UTF-8 becomes the default
	    encoding. </p>
          <p>
	    Own Id: OTP-10630</p>
        </item>
        <item>
	    <p> Some examples overflowing the width of PDF pages have
	    been corrected. </p>
          <p>
	    Own Id: OTP-10665</p>
        </item>
        <item>
          <p>
	    Fix aotocommit for Oracle ODBC driver in Linux. Thanks to
	    Danil Onishchenko.</p>
          <p>
	    Own Id: OTP-10735</p>
        </item>
      </list>
    </section>

</section>

<section><title>ODBC 2.10.13</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Add support for NULL value in odbc:param_query</p>
          <p>
	    Support atom 'null' in odbc:param_query as database NULL
	    value Fix "ODBC: received unexpected info:{tcp_closed,
	    ...}" when connection is terminated. Fix possible access
	    violation with 64bit ODBC. Thanks to Maxim Zrazhevskiy</p>
          <p>
	    Own Id: OTP-10206</p>
        </item>
      </list>
    </section>

</section>

<section><title>ODBC 2.10.12</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    An ODBC process should exit normally if its client exits
	    with 'shutdown'</p>
          <p>
	    There is nothing strange about the client shutting down,
	    so the ODBC process should exit normally to avoid
	    generating a crash report for a non-problem. (Thanks to
	    Magnus Henoch)</p>
          <p>
	    Own Id: OTP-9716</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
	    <p>Erlang/OTP can now be built using parallel make if you
	    limit the number of jobs, for instance using '<c>make
	    -j6</c>' or '<c>make -j10</c>'. '<c>make -j</c>' does not
	    work at the moment because of some missing
	    dependencies.</p>
          <p>
	    Own Id: OTP-9451</p>
        </item>
      </list>
    </section>

</section>

<section><title>ODBC 2.10.11</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    When using output parameters the internal odbc state was
	    not correctly cleaned causing the next call to
	    param_query to misbehave.</p>
          <p>
	    Own Id: OTP-9444</p>
        </item>
        <item>
	    <p> XML files have been corrected. </p>
          <p>
	    Own Id: OTP-9550 Aux Id: OTP-9541 </p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Add code to handle old ODBC drivers on solaris. Also adds
	    tests with MySQL.</p>
          <p>
	    Own Id: OTP-8407</p>
        </item>
        <item>
          <p>
	    Odbc now supports SQL_WLONGVARCHAR, thanks to Hanfei Shen
	    for the patch.</p>
          <p>
	    Own Id: OTP-8493</p>
        </item>
      </list>
    </section>

</section>

<section><title>ODBC 2.10.10</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Better error messages for connection issues.</p>
          <p>
	    Own Id: OTP-9111</p>
        </item>
      </list>
    </section>

</section>

<section><title>ODBC 2.10.9</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Ipv6 is now supported on Windows as well as on UNIX for
	    internal socket communication. (ODBC uses sockets instead
	    of the "Erlang port pipes" as some ODBC-drivers are known
	    to mess with stdin/stdout.) </p>
          <p>
	    Loopback address constants are used when connecting the
	    c-side to the erlang-side over local socket API avoiding
	    getaddrinfo problems, and the {ip, loopback} option is
	    added as a listen option on the erlang-side. Also cleaned
	    up the TIME_STAMP contribution.</p>
          <p>
	    Own Id: OTP-8917</p>
        </item>
      </list>
    </section>

</section>

<section><title>ODBC 2.10.8</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
            ODBC now handles the types SQL_WCHAR and SQL_WVARCHAR.
            Thanks to Juhani Ränkimies. ODBC also has a new
            connection option to return all strings as binaries and
            also expect strings to be binaries in the param_query
            function. These changes provides some unicode support.</p>
          <p>
            Own Id: OTP-7452</p>
        </item>
        <item>
          <p>
            Now supports SQL_TYPE_TIMESTAMP on the format {{YY, MM,
            DD}, {HH, MM, SS}}. Thanks to Juhani Ränkimies.</p>
          <p>
            *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
            Own Id: OTP-8511</p>
        </item>
      </list>
    </section>

</section>

  
  <section><title>ODBC 2.10.7</title>
  
    <section><title>Fixed Bugs and Malfunctions</title>
    <list>
      <item>
	<p>
	  The odbc application can now be compiled on FreeBSD.
	(Thanks to Kenji Rikitake.)</p>
	<p>
	Own Id: OTP-8444</p>
      </item>
    </list>
    </section>

    
    <section><title>Improvements and New Features</title>
      <list>
        <item>
	    <p>Cross compilation improvements and other build system
	    improvements.</p>
	    <p>Most notable:</p> <list><item> Lots of cross
	    compilation improvements. The old cross compilation
	    support was more or less non-existing as well as broken.
	    Please, note that the cross compilation support should
	    still be considered as experimental. Also note that old
	    cross compilation configurations cannot be used without
	    modifications. For more information on cross compiling
	    Erlang/OTP see the <c>$ERL_TOP/INSTALL-CROSS.md</c> file.
	    </item><item> Support for staged install using <url
	    href="http://www.gnu.org/prep/standards/html_node/DESTDIR.html">DESTDIR</url>.
	    The old broken <c>INSTALL_PREFIX</c> has also been fixed.
	    For more information see the <c>$ERL_TOP/INSTALL.md</c>
	    file. </item><item> Documentation of the <c>release</c>
	    target of the top <c>Makefile</c>. For more information
	    see the <c>$ERL_TOP/INSTALL.md</c> file. </item><item>
	    <c>make install</c> now by default creates relative
	    symbolic links instead of absolute ones. For more
	    information see the <c>$ERL_TOP/INSTALL.md</c> file.
	    </item><item> <c>$ERL_TOP/configure --help=recursive</c>
	    now works and prints help for all applications with
	    <c>configure</c> scripts. </item><item> Doing <c>make
	    install</c>, or <c>make release</c> directly after
	    <c>make all</c> no longer triggers miscellaneous
	    rebuilds. </item><item> Existing bootstrap system is now
	    used when doing <c>make install</c>, or <c>make
	    release</c> without a preceding <c>make all</c>.
	    </item><item> The <c>crypto</c> and <c>ssl</c>
	    applications use the same runtime library path when
	    dynamically linking against <c>libssl.so</c> and
	    <c>libcrypto.so</c>. The runtime library search path has
	    also been extended. </item><item> The <c>configure</c>
	    scripts of <c>erl_interface</c> and <c>odbc</c> now
	    search for thread libraries and thread library quirks the
	    same way as <c>erts</c> do. </item><item> The
	    <c>configure</c> script of the <c>odbc</c> application
	    now also looks for odbc libraries in <c>lib64</c> and
	    <c>lib/64</c> directories when building on a 64-bit
	    system. </item><item> The <c>config.h.in</c> file in the
	    <c>erl_interface</c> application is now automatically
	    generated in instead of statically updated which reduces
	    the risk of <c>configure</c> tests without any effect.
	    </item></list>
	    <p>(Thanks to Henrik Riomar for suggestions and
	    testing)</p>
	    <p>(Thanks to Winston Smith for the AVR32-Linux cross
	    configuration and testing)</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-8323</p>
        </item>
        <item>
	    <p>The documentation is now possible to build in an open
	    source environment after a number of bugs are fixed and
	    some features are added in the documentation build
	    process. </p>
	    <p>- The arity calculation is updated.</p>
	    <p>- The module prefix used in the function names for
	    bif's are removed in the generated links so the links
	    will look like
	    "http://www.erlang.org/doc/man/erlang.html#append_element-2"
	    instead of
	    "http://www.erlang.org/doc/man/erlang.html#erlang:append_element-2".</p>
	    <p>- Enhanced the menu positioning in the html
	    documentation when a new page is loaded.</p>
	    <p>- A number of corrections in the generation of man
	    pages (thanks to Sergei Golovan)</p>
	    <p>- The legal notice is taken from the xml book file so
	    OTP's build process can be used for non OTP
	    applications.</p>
          <p>
	    Own Id: OTP-8343</p>
        </item>
        <item>
          <p>
	    odbc:param_query() now properly indicates if nothing was
	    updated. (Thanks to Paul Oliver.)</p>
          <p>
	    Own Id: OTP-8347</p>
        </item>
      </list>
    </section>


    <section><title>Known Bugs and Problems</title>
      <list>
        <item>
          <p>
	    The ODBC test cases are failing for linux and MacOSX
	    There is problems with setting of options on
	    odbc-connections, and the odbcserver just exits with an
	    exit code.</p>
          <p>
	    Own Id: OTP-8407</p>
        </item>
      </list>
    </section>

</section>

<section><title>ODBC 2.10.6</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
            Applied a patch from Andrew Thompson, which fixes some
            error cases.</p>
          <p>
            Own Id: OTP-8291</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
            The documentation is now built with open source tools
            (xsltproc and fop) that exists on most platforms. One
            visible change is that the frames are removed.</p>
          <p>
            Own Id: OTP-8250</p>
        </item>
      </list>
    </section>

  </section>

  <section><title>ODBC 2.10.5</title>
  
  <section><title>Fixed Bugs and Malfunctions</title>
  <list>
    <item>
      <p>
      A missing return statement in a non void function has been fixed in <c>odbc</c>. (Thanks to Nico Kruber)
      </p>
      <p>
      Own Id: OTP-7978</p>
    </item>
  </list>
  </section>
  
  </section>


  <section><title>ODBC 2.10.4</title>
  
  <section><title>Improvements and New Features</title>
  <list>
    <item>
      <p>
	param_query now handles the in_or_out parameter
      correctly.</p>
      <p>
      Own Id: OTP-7720</p>
    </item>
    <item>
      <p>
	Changed the internal socket use so that it will become
      more robust to non-functional ipv6 and fallback on ipv4.</p>
      <p>
      Own Id: OTP-7721</p>
    </item>
  </list>
  </section>
  
  </section>

 <section><title>ODBC 2.10.3</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
            Configure update for mac.</p>
          <p>
            Own Id: OTP-7418</p>
        </item>
      </list>
    </section>


    <section><title>Known Bugs and Problems</title>
      <list>
        <item>
          <p>
            describe_table/[2,3] on mac gives an empty result</p>
          <p>
            Own Id: OTP-7478</p>
        </item>
      </list>
    </section>

</section>

  <section><title>ODBC 2.10.2</title>
  
    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
            SQLINTEGERs where not retrieved correctly on 64 bit
            platforms as an SQLINTEGER is defined to be a 32 bit
            integer and not a true long.</p>
          <p>
            Own Id: OTP-7297</p>
        </item>
      </list>
    </section>

  </section>
  
  <section><title>ODBC 2.10.1</title>
  
    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
            Now supports out and input parameters for stored
            procedures.</p>
          <p>
            Own Id: OTP-7019</p>
        </item>
        <item>
          <p>
            ODBC is now prebuilt for SLES10 in the commercial build
            and parameters to error_logger:error_report/1 has been
            corrected.</p>
          <p>
            Own Id: OTP-7294</p>
        </item>
        <item>
          <p>
            Parametrized queries will now work correctly when using
            Erlang R12B-2 on Linux (SuSE 10.3), MySQL 5.0.45, myodbc
            3.51 and unixODBC 2.2.12. Earlier it could happen that an
            error was returned even though data was correctly
            inserted into the database.</p>
          <p>
            Own Id: OTP-7307</p>
        </item>
      </list>
    </section>


    <section><title>Known Bugs and Problems</title>
      <list>
        <item>
          <p>
            SQLINTEGERs are not retrieved correctly on 64 bit
            platforms as an SQLINTEGER seems to be defined to be a 32
            bit integer and not a true long.</p>
          <p>
            Own Id: OTP-7297</p>
        </item>
      </list>
    </section>

 </section>

  <section><title>ODBC 2.10</title>
    
    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
            Enhanced configure to among other things work better when
            there is a library found but it is not usable e.i. 32 bit
            library in 64 bit build.</p>
          <p>
            Own Id: OTP-7062</p>
        </item>
      </list>
    </section>
    
  </section>

  <section><title>ODBC 2.0.9</title>
    
    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
            The odbc application now has to be explicitly started and
            stopped e.i. it will not automatically be started as a
            temporary application as it did before. Although a
            practical feature when testing things in the shell, it is
            not desirable that people take advantage of this and not
            start the odbc application in a correct way in their
            products. Added functions to the odbc API that calls
            application:start/stop.</p>
          <p>
            *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
            Own Id: OTP-6984</p>
        </item>
        <item>
          <p>
            Changed Makefile.in so that odbc is not disabled on
            64-bits architectures. It was earlier disabled due to
            that it had never been tested in that environment.</p>
          <p>
            Own Id: OTP-6987</p>
        </item>
      </list>
    </section>
    
  </section>
  
  <section>
    <title>ODBC 2.0.8</title>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>Minor Makefile changes.</p>
          <p>Own Id: OTP-6689</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>ODBC 2.0.7</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>When using a parameterized query on a windows platform
            the data was inserted in the table on the sql-server but
            the connection was lost, this seems to be due to a
            compiler error that has now been worked around, but
            further investigation is ongoing to verify that that
            really was the problem.</p>
          <p>Own Id: OTP-5504</p>
        </item>
        <item>
          <p>param_query/[3,4] could return an unexpected row count
            for some drivers, in this case a postgresdriver.</p>
          <p>Own Id: OTP-6363</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>ODBC 2.0.6</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>pthread header and library mismatch on linux systems (at
            least some SuSE and Debian) with both NPTL and
            Linuxthreads libraries installed.</p>
          <p>Own Id: OTP-5981</p>
        </item>
      </list>
    </section>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>Changed configure to find odbc in /usr/local too</p>
          <p>Own Id: OTP-5966</p>
        </item>
      </list>
    </section>

    <section>
      <title>Known Bugs and Problems</title>
      <list type="bulleted">
        <item>
          <p>When using a parameterized query on a windows platform
            the data is inserted in the table on the sql-server but
            for some reason the connection is lost.</p>
          <p>Own Id: OTP-5504</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>ODBC 2.0.5</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>Fixed bug, reported error when deleting nonexisting rows,
            thanks to Laura M. Castro for reporting this.</p>
          <p>Own Id: OTP-5759</p>
        </item>
      </list>
    </section>

    <section>
      <title>Known Bugs and Problems</title>
      <list type="bulleted">
        <item>
          <p>When using a parameterized query on a windows platform
            the data is inserted in the table on the sql-server but
            for some reason the connection is lost.</p>
          <p>Own Id: OTP-5504</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>Odbc 2.0.4</title>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>/usr was added as a default place for configure to look
            for the odbc library on unix/linux platforms.</p>
          <p>Own Id: OTP-5501</p>
        </item>
        <item>
          <p>A legacy timer in the c port program was set to infinity.
            All timeout handling is handled by the erlang code and a
            extra timeout in the c code will just lead to confusion
            if it is released.</p>
          <p>Own Id: OTP-5502</p>
        </item>
      </list>
    </section>

    <section>
      <title>Known Bugs and Problems</title>
      <list type="bulleted">
        <item>
          <p>When using a parameterized query on a windows platform
            the data is inserted in the table on the sql-server but
            for some reason the connection is lost.</p>
          <p>Own Id: OTP-5504</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>Odbc 2.0.3</title>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>odbc now uses configure as all "normal" applications
            instead of providing special Makefiles for each
            commercial supported platform. This also makes it easier
            to build odbc on non supported platforms.</p>
          <p>Own Id: OTP-5437</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>odbc 2.0.2</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>When issuing a batch of queries and one of the queries
            fail the odbc port program crashed. This is no longer the
            case.</p>
          <p>Own Id: OTP-5176</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>odbc 2.0.1</title>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>Added use of the socket option TCP_NODELAY, as in the
            case of Erlang odbc the Nagel algorithm will never help,
            but always cause an unnecessary delay.</p>
          <p>Own Id: OTP-5100</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>odbc 2.0</title>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>Erlang ODBC now handles batches of queries and can return
            multiple result sets.</p>
          <p>Own Id: OTP-4642 Aux Id: seq7766 </p>
        </item>
        <item>
          <p>The old interface that became deprecated in odbc 1.0 has
            now been removed.</p>
          <p>*** POTENTIAL INCOMPATIBILITY ***</p>
          <p>Own Id: OTP-4794</p>
        </item>
        <item>
          <p>The port program now sends different exit codes to Erlang
            when it exits due to failure. This instead of sending the
            same exit code and then trying to write to stderr. Erlang
            encodes the exit code to a descriptive atom.</p>
          <p>Own Id: OTP-4813</p>
        </item>
        <item>
          <p>Erlang ODBC now supports parameterized queries for the
            most common ODBC data types.</p>
          <p>Own Id: OTP-4821</p>
        </item>
        <item>
          <p>SQL_NUMERIC and SQL_DECIMAL columns are converted to
            integer and float values if possible.</p>
          <p>*** POTENTIAL INCOMPATIBILITY ***</p>
          <p>Own Id: OTP-4826</p>
        </item>
        <item>
          <p>Result sets are now by default returned as a list of
            tuples which is the most intuitive and useful mapping. To
            keep some degree of backwards compatibility you may turn
            this off to get the old behavior that result sets are
            returned as lists of lists. However do not use this in
            new code as it is considered a deprecated feature that
            eventually will disappear.</p>
          <p>*** POTENTIAL INCOMPATIBILITY ***</p>
          <p>Own Id: OTP-4850</p>
        </item>
        <item>
          <p>The odbc implementation now mostly uses sockets to
            communicate between the c and the erlang process, this is
            to avoid a lot of problems arising from different
            odbc-drivers doing strange things that disturbed the
            port-program communication mechanism.</p>
          <p>Own Id: OTP-4875</p>
        </item>
      </list>
    </section>
    <!-- p>For information about older versions see
      <url href="part_notes_history_frame.html">release notes history</url>.</p -->
  </section>
</chapter>