Missing Column Statistics After DataPump Import (IMPDP) (Doc ID 1377849.1)

Last updated on JUNE 15, 2012

Applies to:

Oracle Server - Enterprise Edition - Version 11.1.0.7 to 11.2.0.1 [Release 11.1 to 11.2]
Information in this document applies to any platform.

Symptoms

Missing column statistics in target database after DataPump export/import.

The following query doesn't return the same result in source and target databases:

The missing column statistics results in bad execution plans in target database.

Cause

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