Apache Cassandra ODBC 8.0.0 Windows
- Last Updated: May 8, 2026
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README
Progress(R) DataDirect(R)
Progress(R) DataDirect(R) for ODBC for Apache Cassandra(TM)
Windows Platforms(32- and 64-bit)
8.0.0 Release
February 2026
***********************************************************************
Copyright (C) 2026 Progress Software Corporation and/or its
subsidiaries or affiliates. All Rights Reserved.
***********************************************************************
CONTENTS
Post-GA Product Announcements
Installation Directory
Requirements
Data Source and Platform Support
Changes Since 8.0.0 GA
Release 8.0.0 Features
Notes, Known Problems, and Restrictions
Driver Workaround Options
Documentation
Installed Files for 32-bit Drivers
Installed Files for 64-bit Drivers
Post-GA Product Announcements
The readme files will no longer be updated with product announcements and new
features after the General Availability (GA) of the product. For the latest
updates and enhancements, please refer to the release notes
(https://www.progress.com/datadirect-connectors/whats-new).
Installation Directory
* The default installation directory for the 32-bit driver on a 64-bit
system is:
C:\Program Files (x86)\Progress\DataDirect\ODBC
* The default installation directory for all other installations is:
C:\Program Files\Progress\DataDirect\ODBC
Requirements
* The installer program requires a JVM that is Java SE 11 or higher, including
Oracle JDK, OpenJDK, and IBM SDK (Java) distributions.
* The driver requires one of the following Java Virtual Machines (JVM):
- Oracle JDK 8 or higher (LTS version)
- OpenJDK 8 or higher (LTS version)
- IBM SDK (Java) 8 or higher (LTS version)
* The driver requires the following runtime library:
Microsoft Visual C/C++ runtime version 14.40.33810 or higher
* IMPORTANT: You must have the Microsoft Data Access Components (MDAC)
installed to use this product.
- For 32-bit Windows systems, version 2.6 or higher is required.
- For 64-bit Windows systems, version 2.8 or higher is required.
Depending on the version of your Windows operating system, these
components may already be installed. You can download a utility that
determines whether MDAC is installed and its version from the following
Microsoft site:
http://msdn.microsoft.com/en-us/data/aa937730.aspx
You can also download MDAC from the same site.
Data Source and Platform Support
For the latest data source and platform support information, refer to the
Product Compatibility Guide:
https://docs.progress.com/bundle/datadirect-product-compatibility/resource/
datadirect-product-compatibility.pdf
Changes Since 8.0.0 GA
Debugging Symbols
------------------
The product package now includes .pdb files. These files contain debugging
symbols that can be used for diagnosing and debugging issues in the driver.
JRE Requirement for the Installer
---------------------------------
The installer program now requires you to install a JRE that is Java SE 11 or
higher before running the installer. In earlier versions, the JRE used by the
installer program was included in the product. However, to avoid potential
security vulnerabilities, the installer program no longer includes a JRE.
Instead, the installer program uses the JRE in your environment to allow for
the most secure version of a JRE to be used.
Notes:
* This change does not affect the JVM requirements for the driver. For the latest
driver requirements, refer to the Product Compatibility Guide:
https://docs.progress.com/bundle/datadirect-product-compatibility/resource/
datadirect-product-compatibility.pdf
* The installer program cannot remove the already installed JRE files from the
install directory automatically. Remove them manually.
* To install the 32-bit drivers on 64-bit Windows platforms and start the SQL
engine service, the installer requires the 32-bit version of Java SE 11 or
higher installed on your machine and defined on your path.
ICU Library Upgrade (74.1)
--------------------------
The ICU library files that are installed with the product have been
upgraded to version 74.1. As a part of this upgrade, the ICU library
file names have changed:
* For the 32-bit driver: From ivicu28.dll to ivicu.dll
* For the 64-bit driver: From ddicu28.dll to ddicu.dll
This upgrade is available starting in build 08.02.1072 of the ICU
library files.
CVE-2022-41853 - Use of Externally-Controlled Input to Select Classes or Code
('Unsafe Reflection')
-----------------------------------------------------------------------------
Several Progress DataDirect ODBC drivers utilized a version of HyperSQL
Database that was vulnerable to remote code execution described in
CVE-2022-41853. All impacted drivers have been patched to fix this
vulnerability. For details on impacted drivers and fixed versions, refer to
the following KB article:
https://community.progress.com/s/article/DataDirect-ODBC-Critical-Security-
Bulletin-November-2022-CVE-2022-41853
Documentation
-------------
Any product package made available after February 9, 2021 will not include the
HTML help system or user's guide PDF. The full documentation set, including
these items, is available from the Progress Information Hub:
https://docs.progress.com/category/datadirect-apache-cassandra
While the product packages will not include these documentation items, the
installation Help directory will provide an HTML redirect for direct access
to the HTML help.
Note that all Progress DataDirect for ODBC documentation has been migrated to
the Progress Information Hub:
https://docs.progress.com/
Changes to Installation of Non-Essential Components
-----------------------------------------------------
The installer program has been updated to no longer install common components
for drivers that do not use them. As a result, the installer program no longer
installs the following common components for the Apache Cassandra driver:
* OpenSSL library files, such as ivopenssl30.dll, ddopenssl30.dll, fips.dll,
and openssl.cnf.
* Curl library files, such as ivcurl28.dll and ddcurl28.dll.
If the files are not used by any other DataDirect driver on your machine, you
can safely remove them from existing product directories.
Installer Upgrade
-----------------
The installer program has been enhanced to use a more modern and
secure technology. As a result of this enhancement:
* The default installation location has been changed to:
- For the 32-bit driver on a 64-bit system:
C:\Program Files (86)\Progress\DataDirect\ODBC
- For all other installations:
C:\Program Files\Progress\DataDirect\ODBC
* The new installer program does not support upgrading installations
made with earlier versions of the installer. You will need to
uninstall the existing installation and reinstall with the new
installer to resume upgrades in the same directory.
* The existing data sources cannot be used until they are
updated to point to the new installation location. To learn
how to update them, refer to the best practices documented
at https://community.progress.com/s/.
Configurable Mapping of Collections
-----------------------------------
The driver has been enhanced to allow you to configure how collections are
mapped in the relational view of your data. By configuring the new
SchemaFormat config option, you can determine whether the driver normalizes
collections and collections labeled FROZEN. Refer to "Config Options" in
the User's Guide for more information.
Failover Support for Clusters
-----------------------------
The driver has been enhanced to support connection failover and client load
balancing when connecting to a cluster. You can enable this new functionality
by specifying a comma-separated list of member nodes using the new Cluster
Nodes (ClusterNodes) connection option.
Available in driver version 08.00.0216 (B0706, U0505, J000324)
Timestamp Logging in Packet Logs
--------------------------------
The drivers using base version B0649 and later have been enhanced to
include timestamp in the internal packet logs by default. If you want to
disable the timestamp logging in packet logs, set PacketLoggingOptions=1.
The internal packet logging is not enabled by default. To enable it,
set EnablePacketLogging=1.
Duration Data Type
------------------
The driver has been enhanced to support the Duration data type, which maps
to the SQL_VARCHAR ODBC type. Currently, the Duration type is supported only in
simple columns, and not in Collection types.
Java 7 Support
--------------
Java SE 7 has reached the end of its product life cycle and will no longer
receive generally available security updates. As a result, the drivers will
no longer support JVMs that are version Java SE 7 or earlier. Support for
distributed versions of Java SE 7 and earlier will also end, including
IBM SDK (Java Edition).
Support for Windows Platforms
-----------------------------
The following Windows platforms have reached the end of their product lifecycle
and are no longer supported by the driver:
* Windows 8.0 (versions 8.1 and higher are still supported)
* Windows Vista (all versions)
* Windows XP (all versions)
* Windows Server 2003 (all versions)
Data Consistency Level Enhancement
----------------------------------
The driver has been enhanced to support all the data consistency levels for
read and write operations that are supported by Apache Cassandra data stores.
Data consistency levels are configured using the Read Consistency and Write
Consistency connection options. Refer to the user's guide and reference for
descriptions of these options.
Release 8.0.0 Features
The Progress DataDirect for ODBC for Apache Cassandra driver supports standard
SQL query language to select data from Apache Cassandra databases. In addition,
some insert, update, and delete capabilities are supported. The driver
translates the SQL statements provided by an application into native Cassandra
Query Language(CQL) statements, enabling you to leverage your knowledge
of SQL.
Features:
* Certified against Apache Cassandra
* Certified against DataStax Enterprise
* Supports SQL read-write access to Apache Cassandra data sources.
* Supports CQL Binary Protocol
* The driver supports the core SQL-92 grammar.
* Support for all ODBC Core and Level 1 functions and some Level 1 and
Level 2 features.
* Supports user id and password authentication.
* Generates a relational view of Cassandra data. Tuple and user-defined types
are flattened into a relational parent table, while collection types are
mapped as relational child tables.
* Supports Native and Refresh escape sequences to embed CQL commands in
SQL-92 statements.
* Supports Cassandra's tunable consistency functionality with ReadConsistency
and WriteConsistency connection options.
* Supports the handling of large result sets through the Fetch Size, Native
Fetch Size and Result Memory Size connection options.
* Supports applications that do not support unbounded data types through
the ASCIISize, DecimalPrecision, DecimalScale, VarintPrecision, and
VarcharSize connection options.
* The driver supports the following data types:
- ASCII maps to SQL_VARCHAR
- Bigint maps to SQL_BIGINT
- Blob maps to SQL_LONGVARBINARY
- Boolean maps to SQL_BIT
- Counter maps to SQL_BIGINT
- Date maps to SQL_TYPE_DATE
- Decimal maps to SQL_DECIMAL
- Double maps to SQL_DOUBLE
- Float maps to SQL_REAL
- Inet maps to SQL_VARCHAR
- Int maps to SQL_INTEGER
- List maps to SQL_WLONGVARCHAR
- Map maps to SQL_WLONGVARCHAR
- Set maps to SQL_WLONGVARCHAR
- Smallint maps to SQL_SMALLINT
- Time maps to SQL_TYPE_TIME
- Timestamp maps to SQL_TYPE_TIMESTAMP
- TimeUUID maps to SQL_CHAR
- TINYINT maps to SQL_TINYINT
- TUPLE maps to SQL_WLONGVARCHAR
- USERTYPE maps to SQL_WLONGVARCHAR
- UUID maps to SQL_CHAR
- Varchar maps to SQL_WVARCHAR
- Varint maps to SQL_DECIMAL
Notes, Known Problems, and Restrictions
The following are notes, known problems, and restrictions for the
8.0 release of the driver:
Specifying values for the same connection option multiple times
---------------------------------------------------------------
The driver does not support specifying values for the same connection
option multiple times in a connection string or DSN. If a value is
specified using the same attribute multiple times or using both
long and short attributes, the connection may fail or the driver may
not behave as intended.
SQLColAttributes for Columns in Prepared Statements
---------------------------------------------------
SQLColAttributes currently returns the incorrect data types and searchability
for columns in prepared statements.
Row Counts for Semicolon Delimited Statement Batches
----------------------------------------------------
Contrary to the driver metadata returned, row counts for semicolon delimited
statement batches are rolled up into a single value rather than being returned
for each explicit statement.
CURRENT OF Syntax Error
-----------------------
Attempting to update data using a named cursor with the CURRENT OF cursor
syntax currently returns an error.
Updates on Counter Columns
--------------------------
Update is supported for Counter columns only when all the other columns in the
row comprise that row's primary key. When updating a Counter column on an
existing row, the Counter column is updated according to the increment (or
decrement) specified in the SQL statement. When updating a Counter column for
which there is no existing row, the values of the columns that comprise the
row's primary key are inserted into the table alongside the value of the
Counter column. Note that Update is only supported using the native syntax.
Out-of-memory Errors
--------------------
The driver has been designed to handle large result sets that result. However,
out-of-memory errors can occur. The following items outline how to reduce the
likelihood of out-of-memory errors for your environment.
* Reduce FetchSize to reduce demands on memory. By lowering the maximum number
of rows as specified by FetchSize, you lower the number of rows the driver is
required to process before returning data to the application. Thus, you
reduce demands on memory and decrease the likelihood of out-of-memory errors.
* Decrease ResultMemorySize until results are successfully returned. Intermediate
results larger than the value specified will be written to disk as opposed to
held in memory. When configured correctly, this avoids memory limitations by
not relying on memory to process larger intermediate results. Be aware that
while writing to disk reduces the risk of out-of-memory errors, it also
negatively impacts performance. For optimal performance, decrease this value
only to a size necessary to avoid errors. By default, ResultMemorySize is set
to -1, which sets the maximum size of intermediate results held in memory to
a percentage of the max Java heap size. If you received errors using the
default configuration, use the max Java heap size divided by 4 as a starting
point when tuning this option.
* Increase the JVM heap size. By increasing the max Java heap size, you increase
the amount of data the driver can accumulate in memory and avoid
out-of-memory errors.
system.indexes collection
-------------------------
The driver hides the system.indexes collection, and tables containing the "quot;
character are hidden to prevent naming conflicts.
oplog.rs system table
---------------------
The driver hides the oplog.rs system table.
126 Error When Modifying Data Sources on Windows 10
---------------------------------------------------
You may receive a 126 error when adding or configuring a data source stored
on a network location. This is caused by the settings of the User Account
Control (UAC) security feature on Windows 10. To work around this issue:
Important: Implementing this fix disables security safeguards that are designed
to protect your machine. Before starting, refer to the following Microsoft
documentation for potential risks associated with disabling the UAC feature:
http://windows.microsoft.com/en-us/
windows/what-are-user-account-control-settings
1. From the Start menu, type regedit in the search field; then, select regedit
from the results list. The Registry Editor window opens.
2. Navigate to the following registry subkey:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
3. Right click on the subkey; then, select New > DWORD Value.
4. Rename the new value EnableLinkedConnections.
5. Right-click EnableLinkedConnections, and then click Modify. The Edit DWORD
Value window opens.
6. In the Value data field, type 1. Click OK.
7. Close the Registry Editor; then, restart your computer.
Driver WorkAround Options
Progress DataDirect has included non-standard connection options (workarounds)
for the driver that enable you to take full advantage of packaged ODBC-enabled
applications requiring non-standard or extended behavior. Refer to the chapter
"WorkAround options" in THE PROGRESS DATADIRECT FOR ODBC DRIVERS REFERENCE for a
description of these options.
Documentation
PROGRESS DATADIRECT FOR ODBC FOR APACHE CASSANDRA DOCUMENTATION SET
-------------------------------------------------------------------
The driver documentation set is available from the Progress Information Hub:
https://docs.progress.com/category/datadirect-apache-cassandra
You can access the online help system directly via the HTML redirect in the
installation Help directory.
Installed Files the 32-bit Driver
This file list assumes a full installation of the driver and
documentation.
The installer copies the following file to the Windows system
directory:
ivtrc28.dll DataDirect trace library
The installer copies the following files and subdirectories to the
product installation directory, by default:
For 32-bit drivers on 64-bit machines:
C:\Program Files (x86)\Progress\DataDirect\ODBC\:
For all other installations:
C:\Program Files\Progress\DataDirect\ODBC\:
license.txt Progress DataDirect license agreement
\drivers:
ivcsndr28.dll DataDirect Driver for Apache Cassandra
ivcsndr28.pdb Debugging symbols for DataDirect Driver for
Apache Cassandra
ivcsndr28r.dll DataDirect Driver for Apache Cassandra resource file
ivcsndr28s.dll DataDirect Driver for Apache Cassandra setup library
ivicu.dll Unicode conversion tables
ivicu.pdb Debugging symbols for ICU library
IVODBC.LIC DataDirect License File
ivtrc28.dll DataDirect trace library
ivtrc28.pdb Debugging symbols for DataDirect trace library
qesqlext.h Header file for DataDirect-specific ODBC Definitions
\help\:
-------
*.html HTML redirects to online connector help systems
and documentation resources
\java\lib:
cassandra.jar Java components for the driver
\NOTICES:
ODBC for Apache Cassandra
v8.0 notices.txt Third-party vendor license agreements
\READMES:
ODBC for Apache Cassandra
v8.0 readme.txt This file
\samples:
\bulk\bulk.c Bulk example source
\bulk\bulk.exe Bulk application
\bulk\bulk.mak Bulk example make file
\bulk\bulk.sln Bulk example solution file
\bulk\bulk.vcproj Bulk example project file
\bulk\ddlogging.properties Log configuration file for the
Cassandra driver
\bulkstrm\bulk.cpp Bulk streaming example source
\bulkstrm\bulk.hpp Bulk streaming example header
\bulkstrm\bulk.rc Bulk streaming example resource file
\bulkstrm\bulkstreaming.sln Bulk streaming example solution file
\bulkstrm\bulkstreaming.vcproj Bulk streaming example project file
\bulkstrm\bulkstrm.exe Bulk streaming example application
\bulkstrm\bulkstrm.txt Bulk streaming description
\bulkstrm\ddlogging.properties Log configuration file for the
Cassandra driver
\bulkstrm\msgprintf.hpp Bulk streaming example header file
\bulkstrm\ProgressDataDirect.bmp
\bulkstrm\ProgressDataDirect.ico
\bulkstrm\winmain.cpp Bulk streaming example source file
\example\ddlogging.properties Log configuration file for the
Cassandra driver
\example\example.c Example source
\example\Example.exe Example application
\example\example.h Example header
\example\Example.mak Example make file
\example\Example.sln Example solution file
\example\Example.vcproj Example project file
\translat\LIBMAIN.C
\translat\README.TRN Translation Library example description
\translat\TRANSLAT.C Translation Library example source file
\translat\WINNT.MAK Translation Library example make file
\tools:
ddextwin.exe License Extender utility
ddprocinfo.exe Processor Information utility
DSNConverterSil.exe Data Source Converter utility
cassandraserver32.exe The Cassandra SQL Server Engine
XMLP.exe A GUI demo tool that persists a result set to
an XML data file
\tools\Tableau:
DataDirect Apache Cassandra.tdc Tableau data source file
\uninstall\*.* Files used to uninstall the product
Installed Files the 64-bit Driver
This file list assumes a full installation of the driver and
documentation.
The installer copies the following file to the Windows system
directory:
ddtrc28.dll DataDirect trace library
The installer copies the following files and subdirectories to the
product installation directory, by default:
C:\Program Files\Progress\DataDirect\ODBC\:
license.txt Progress DataDirect license agreement
\drivers:
ddcsndr28.dll DataDirect Driver for Apache Cassandra
ddcsndr28.pdb Debugging symbols for DataDirect Driver for
Apache Cassandra
ddcsndr28r.dll DataDirect Driver for Apache Cassandra resource file
ddcsndr28s.dll DataDirect Driver for Apache Cassandra setup library
ddicu.dll Unicode conversion tables
ddicu.pdb Debugging symbols for ICU library
DDODBC.LIC DataDirect License File
ddtrc28.dll DataDirect trace library
ddtrc28.pdb Debugging symbols for DataDirect trace library
qesqlext.h Header file for DataDirect-specific ODBC Definitions
\help\:
-------
*.html HTML redirects to online connector help systems
and documentation resources
\java\lib:
cassandra.jar Java components for the driver
\NOTICES:
ODBC for Apache Cassandra
v8.0 notices.txt Third-party vendor license agreements
\READMES:
ODBC for Apache Cassandra
v8.0 readme.txt This file
\samples:
\bulk\bulk.c Bulk example source
\bulk\bulk.exe Bulk application
\bulk\bulk.mak Bulk example make file
\bulk\bulk.sln Bulk example solution file
\bulk\bulk.vcproj Bulk example project file
\bulk\ddlogging.properties Log configuration file for the
Cassandra driver
\bulkstrm\bulk.cpp Bulk streaming example source
\bulkstrm\bulk.hpp Bulk streaming example header
\bulkstrm\bulk.rc Bulk streaming example resource file
\bulkstrm\bulkstreaming.sln Bulk streaming example solution file
\bulkstrm\bulkstreaming.vcproj Bulk streaming example project file
\bulkstrm\bulkstrm.exe Bulk streaming example application
\bulkstrm\bulkstrm.txt Bulk streaming description
\bulkstrm\ddlogging.properties Log configuration file for the
Cassandra driver
\bulkstrm\msgprintf.hpp Bulk streaming example header file
\bulkstrm\ProgressDataDirect.bmp
\bulkstrm\ProgressDataDirect.ico
\bulkstrm\winmain.cpp Bulk streaming example source file
\example\ddlogging.properties Log configuration file for the
Cassandra driver
\example\example.c Example source
\example\Example.exe Example application
\example\example.h Example header
\example\Example.mak Example make file
\example\Example.sln Example solution file
\example\Example.vcproj Example project file
\translat\LIBMAIN.C
\translat\README.TRN Translation Library example description
\translat\TRANSLAT.C Translation Library example source file
\translat\WINNT.MAK Translation Library example make file
\tools:
ddextwin.exe License Extender utility
ddprocinfo.exe Processor Information utility
DSNConverterSil.exe Data Source Converter utility
cassandraserver64.exe The Cassandra SQL Server Engine
XMLP.exe A GUI demo tool that persists a result
set to an XML data file
\tools\Tableau:
DataDirect Apache Cassandra.tdc Tableau data source file
\uninstall\*.* Files used to uninstall the product
~~~~~~~~~~~~~~~
February 2026
End of README.TXT