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Support Article

Unsupported Data type CLOB



When a user runs a test connection for a class mapped to a table with a CLOB column an error is shown on the screen.

Error Messages

"Class Index-Example-Work-Cover is mapped to table ExampleTable.Pc_Index_Example_Work_Cover in database PegaDATA, which has column CASENAME of unsupported type CLOB"

Steps to Reproduce

Run a test connection on a class  mapped to a table with a CLOB column.

Root Cause

An issue in the custom application code or rules.  CLOB (Character large object) is not an officially supported data type by Pega Platform.


Perform the following local-change: use a supported data type, such as VARCHAR2.
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Published January 31, 2016 - Updated October 8, 2020

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