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ODBC Release Notes

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This document describes the changes made to the odbc application.

## ODBC 2.10.8

### Improvements and New Features

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.

Own Id: OTP-7452

Now supports SQL_TYPE_TIMESTAMP on the format {{YY, MM, DD}, {HH, MM, SS}}. Thanks to Juhani Ränkimies.

*** POTENTIAL INCOMPATIBILITY ***

Own Id: OTP-8511

## ODBC 2.10.7

### Fixed Bugs and Malfunctions

The odbc application can now be compiled on FreeBSD. (Thanks to Kenji Rikitake.)

Own Id: OTP-8444

### Improvements and New Features

Cross compilation improvements and other build system improvements.

Most notable:

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 $ERL_TOP/INSTALL-CROSS.md file. Support for staged install using DESTDIR. The old broken INSTALL_PREFIX has also been fixed. For more information see the $ERL_TOP/INSTALL.md file. Documentation of the release target of the top Makefile. For more information see the $ERL_TOP/INSTALL.md file. make install now by default creates relative symbolic links instead of absolute ones. For more information see the $ERL_TOP/INSTALL.md file. $ERL_TOP/configure --help=recursive now works and prints help for all applications with configure scripts. Doing make install, or make release directly after make all no longer triggers miscellaneous rebuilds. Existing bootstrap system is now used when doing make install, or make release without a preceding make all. The crypto and ssl applications use the same runtime library path when dynamically linking against libssl.so and libcrypto.so. The runtime library search path has also been extended. The configure scripts of erl_interface and odbc now search for thread libraries and thread library quirks the same way as erts do. The configure script of the odbc application now also looks for odbc libraries in lib64 and lib/64 directories when building on a 64-bit system. The config.h.in file in the erl_interface application is now automatically generated in instead of statically updated which reduces the risk of configure tests without any effect.

(Thanks to Henrik Riomar for suggestions and testing)

(Thanks to Winston Smith for the AVR32-Linux cross configuration and testing)

*** POTENTIAL INCOMPATIBILITY ***

Own Id: OTP-8323

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.

- The arity calculation is updated.

- 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".

- Enhanced the menu positioning in the html documentation when a new page is loaded.

- A number of corrections in the generation of man pages (thanks to Sergei Golovan)

- The legal notice is taken from the xml book file so OTP's build process can be used for non OTP applications.

Own Id: OTP-8343

odbc:param_query() now properly indicates if nothing was updated. (Thanks to Paul Oliver.)

Own Id: OTP-8347

### Known Bugs and Problems

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.

Own Id: OTP-8407

## ODBC 2.10.6

### Fixed Bugs and Malfunctions

Applied a patch from Andrew Thompson, which fixes some error cases.

Own Id: OTP-8291

### Improvements and New Features

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.

Own Id: OTP-8250

## ODBC 2.10.5

### Fixed Bugs and Malfunctions

A missing return statement in a non void function has been fixed in odbc. (Thanks to Nico Kruber)

Own Id: OTP-7978

## ODBC 2.10.4

### Improvements and New Features

param_query now handles the in_or_out parameter correctly.

Own Id: OTP-7720

Changed the internal socket use so that it will become more robust to non-functional ipv6 and fallback on ipv4.

Own Id: OTP-7721

## ODBC 2.10.3

### Improvements and New Features

Configure update for mac.

Own Id: OTP-7418

### Known Bugs and Problems

describe_table/[2,3] on mac gives an empty result

Own Id: OTP-7478

## ODBC 2.10.2

### Fixed Bugs and Malfunctions

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.

Own Id: OTP-7297

## ODBC 2.10.1

### Improvements and New Features

Now supports out and input parameters for stored procedures.

Own Id: OTP-7019

ODBC is now prebuilt for SLES10 in the commercial build and parameters to error_logger:error_report/1 has been corrected.

Own Id: OTP-7294

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.

Own Id: OTP-7307

### Known Bugs and Problems

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.

Own Id: OTP-7297

## ODBC 2.10

### Improvements and New Features

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.

Own Id: OTP-7062

## ODBC 2.0.9

### Improvements and New Features

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.

*** POTENTIAL INCOMPATIBILITY ***

Own Id: OTP-6984

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.

Own Id: OTP-6987

## ODBC 2.0.8

### Improvements and New Features

Minor Makefile changes.

Own Id: OTP-6689

## ODBC 2.0.7

### Fixed Bugs and Malfunctions

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.

Own Id: OTP-5504

param_query/[3,4] could return an unexpected row count for some drivers, in this case a postgresdriver.

Own Id: OTP-6363

## ODBC 2.0.6

### Fixed Bugs and Malfunctions

pthread header and library mismatch on linux systems (at least some SuSE and Debian) with both NPTL and Linuxthreads libraries installed.

Own Id: OTP-5981

### Improvements and New Features

Changed configure to find odbc in /usr/local too

Own Id: OTP-5966

### Known Bugs and Problems

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.

Own Id: OTP-5504

## ODBC 2.0.5

### Fixed Bugs and Malfunctions

Fixed bug, reported error when deleting nonexisting rows, thanks to Laura M. Castro for reporting this.

Own Id: OTP-5759

### Known Bugs and Problems

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.

Own Id: OTP-5504

## Odbc 2.0.4

### Improvements and New Features

/usr was added as a default place for configure to look for the odbc library on unix/linux platforms.

Own Id: OTP-5501

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.

Own Id: OTP-5502

### Known Bugs and Problems

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.

Own Id: OTP-5504

## Odbc 2.0.3

### Improvements and New Features

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.

Own Id: OTP-5437

## odbc 2.0.2

### Fixed Bugs and Malfunctions

When issuing a batch of queries and one of the queries fail the odbc port program crashed. This is no longer the case.

Own Id: OTP-5176

## odbc 2.0.1

### Improvements and New Features

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.

Own Id: OTP-5100

## odbc 2.0

### Improvements and New Features

Erlang ODBC now handles batches of queries and can return multiple result sets.

Own Id: OTP-4642 Aux Id: seq7766

The old interface that became deprecated in odbc 1.0 has now been removed.

*** POTENTIAL INCOMPATIBILITY ***

Own Id: OTP-4794

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.

Own Id: OTP-4813

Erlang ODBC now supports parameterized queries for the most common ODBC data types.

Own Id: OTP-4821

SQL_NUMERIC and SQL_DECIMAL columns are converted to integer and float values if possible.

*** POTENTIAL INCOMPATIBILITY ***

Own Id: OTP-4826

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.

*** POTENTIAL INCOMPATIBILITY ***

Own Id: OTP-4850

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.

Own Id: OTP-4875