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Sub-Optimal Execution Plan Is Chosen With Index Hint Which Specifies No Particular Index (Doc ID 2282109.1)

Last updated on MARCH 28, 2019

Applies to:

Oracle Database - Standard Edition - Version 12.1.0.2 to 12.2.0.1 [Release 12.1 to 12.2]
Oracle Database - Enterprise Edition - Version 12.1.0.2 to 12.2.0.1 [Release 12.1 to 12.2]
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
Information in this document applies to any platform.

Symptoms

Sub-optimal execution plan is chosen with index hint which specified no particular index.

For example, table TEST has two indexes(IDX_PK and IDX1) and the query is here: 

 

Cause

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In this Document
Symptoms
Cause
Solution
References


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