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Topic Status: Some information in this topic is preview and subject to change in future releases. Preview information describes new features or changes to existing features in Microsoft SQL Server 2016 Community Technology Preview 2 (CTP2).

Product Name

SQL Server

Event ID


Event Source




Symbolic Name


Message Text

Computed columns and user-defined types cannot be checked for object ID O_ID (object "O_NAME") because the internal expression evaluator could not be initialized.

This informational message indicates that the query processor could not provide DBCC with an internal object to allow for the evaluation of computed columns and common language runtime (CLR) user-defined types. This means that computed columns and CLR user-defined types will not be checked for correctness or be used when DBCC checks the consistency between indexes and base tables.

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