Frequently asked question

Why are the numbers returned by the DB2 spatial extender Z and M functions slightly different than the actual stored values?

Last Published: April 25, 2020


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The DB2 spatial extender function is returning values that are different than what has been stored. For instance, storing a measure of 0.20000000 may be
returned by the spatial extender M function as 0.19999999.

The Z and M functions are incorrectly converting the integer stored value to double-precision real-world values.

Article ID:000003654

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