EDOBE XDOM PMML Instrukcja Obsługi Pobierz pdf (Strona 21)

Known Issues in Release 2.0

Reference Topic/Area Issue Description / Workaround

EXT-2209

and

EXT-2101

Metadata

Management

nzconvertsyscase does not work in conjunction with Netezza An-

alytics.

Conversion of the system case from uppercase to lowercase or

vice versa using the command "nzconvertsyscase" does not con-

vert the metadata management tables. Before you run this com-

mand, you must (for all databases) drop all analytics models and

use the nza..cleanup() procedure to remove the metadata.

After you run the command, you must re-register the Netezza

Analytics component analytics_utils:

nzcm -fr analytics_utils

EXT-2209

and

SWS-72806

and

SWS-74893

Metadata

Management

There are two issues related to backup/restore operations with

regard to Metadata Management.

1. When you backup a database that contains Netezza Analyt-

ics models and restore it on ANOTHER Netezza system, the

table/view references in the metadata tables could be incor-

rect. If you need to do so, the administrator should set the

object ids used in the metadata tables to the value -1 (for all

databases containing analytics models) after the restore op-

eration: In table NZA_META_MODELS, these are the col-

umns OWNERID and CREATORID; and in table

NZA_META_COMPONENTS, the column OBJID.

2. Restore of a database containing metadata management

views may fail due to issues SWS-72806 and SWS-74893.

This is a NON-FATAL error; the database and all the data in

the tables will be restored correctly, but some views MAY be

missing. These views can be manually re-created by doing

the following:

● Log in as ADMIN

● Find the Model IDs for all models that have a column

properties view registered in MM:

select id from nza_meta_components

where usagetype = 'Column Properties';

● For all these IDs (here with ID 29 as example), run the

following two internal procedures:

call nza.._sp_meta_remove_component(

29, 'Column Properties', -1);

call nza.._sp_meta_create_column_property_view(

29, 'COLNAME', false);

EXT-2255 STD_NORM STD_NORM returns columns with null values even though stan-

dardization and normalization is feasible. This issue that may in-

directly impact KMEANS auto-transformation since KMEANS au-

tomatic standardization or normalization may returns columns

with null values when columns have very small variance values.

EXT-2318 TBNET_APPLY The output table is different in this release. The prediction col-

umn is named <colname>_PRED instead of <colname>_pred.

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