Datapump Export becomes very slow when exporting Domain Index(es)

(Doc ID 2043076.1)

Last updated on MAY 22, 2017

Applies to:

Oracle Database - Standard Edition - Version to [Release 11.2 to 12.1]
Information in this document applies to any platform.


Data Pump is very slow when exporting Domain Indexes.

With every Domain Index rebuild this is getting slower.

Data Pump Logfile

. . exported "U1"."TEST1"                              57.34 MB    1920 rows


TKPROF based on SQL tracing using "event 10046 level 12" confirms that that most of the elapsed time is spent on SYS.KU$_2NDTAB_INFO_VIEW

-- Example


AWR Report

The AWR Report confirms that there's a huge number of "executions" of the identical sql_id as confirmed by the TKPROF report.



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