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Changes to Netezza Spatial

Spatial precision has changed such that coordinate values display only the value's signifi-

cant digits up to fifteen digits of precision which is the maximum for 64-bit floating point val-

ues. Prior to 2.0, by default, the user would always see 16 decimal digits. This means that

any trailing 0's at the end of a value will now be truncated in this release. For example, pri-

or to this release the user would have seen the following:

INZA(ADMIN)=> select st_astext(st_wkttosql('point (10 16)'));

ST_ASTEXT

-------------------------------------------------

POINT (10.0000000000000000 16.0000000000000000)

(1 row)

With 2.0 they will now see:

INZA(ADMIN)=> select st_astext(st_wkttosql('point (10 16)'));

ST_ASTEXT

---------------

POINT (10 16)

(1 row)

Additionally, prior to this release, the user could control the number of decimal digits as fol-

lows:

INZA(ADMIN)=> select st_astext(st_wkttosql('point (10 16)'), 8);

ST_ASTEXT

---------------------------------

POINT (10.00000000 16.00000000)

(1 row)

With this release this option is no longer available.

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EDOBE XDOM PMML Bedienerhandbuch Seite 16