Very Long Parse Time for Queries in In-Memory Database
(Doc ID 2102106.1)
Last updated on JANUARY 17, 2020
Applies to:
Oracle Database - Enterprise Edition - Version 12.1.0.2 to 12.1.0.2 [Release 12.1]Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
Symptoms
- Problem is exposed after upgrading the database to 12.1.0.2 with the IMDB feature configured or enabled
- High long parse time for queries in 12.1.0.2 In-Memory Database (IMDB)
- The EXPLAIN PLAN for takes hours to complete, however, it executes in less than a minute with INMEMORY_QUERY=DISABLE.
Changes
Upgrade to 12.1.0.2.0 Database with IMDB configured or enabled
Cause
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In this Document
Symptoms Changes Cause Solution References My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.