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Optimizer Does not use Spatial Domain Index for SQL When NLS_comp=linguistic, NLS_sort=binary_ci (Doc ID 1617278.1)

Last updated on APRIL 08, 2022

Applies to:

Oracle Spatial and Graph - Version 11.2.0.3 and later
Information in this document applies to any platform.

Symptoms

On a table with column of type MDSYS.SDO_GEOMETRY, a spatial index is created in a session with NLS_comp=linguistic and NLS_sort=binary_ci

As a results a query from a session with NLS_comp=linguistic and NLS_sort=binary_ci in the os environment uses a full table scan.
But the same query from a session with standard  NLS_comp=binary and NLS_sort=binary in the os environment uses the domain index.

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution


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