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SQL Queries Run In Parallel after enabling DB In-Memory Column Store(IMCS) (Doc ID 2655885.1)

Last updated on MAY 14, 2020

Applies to:

Oracle Database - Enterprise Edition - Version 12.2.0.1 and later
Information in this document applies to any platform.

Symptoms

When You move some tables into In-Memory Column Store(IMCS), All queries accessing these tables ran with parallel degree 2.

Environment details :

But the same query used to execute in SERIAL mode before enabling IMCS. 

 

Changes

 Enabled In-Memory Column Store feature for those tables.

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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