RCP:Query SDO_RELATE Spatial Function Is Slow (Doc ID 1913111.1)

Last updated on AUGUST 05, 2014

Applies to:

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

Symptoms

Queries with sod_relate function are very slow in production environment taking more than 30 minutes. There are around 9 million records.

In our test environment I created a table with only 2 entries and even this takes 5 minutes

SQL> select /*+ ordered */ a.woe_id from vdsilva.spatial_1 b, vdsilva.spatial_1 a where a.woe_id=28289488 and b.woe_id=24865690 and sdo_relate(a.shape,b.shape, 'mask=covers+contains') ='TRUE';

no rows selected

Elapsed: 00:05:53.17

Cause

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