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Improve db_checksum

Almost all of our customers who are migration from Netezza to IIAS need us to provide a report certifying the quality of data. db_checksum is the obvious choice, however the tool has limitations.

1. Currently the tool provide one check sum value per table. It does not give check sum value per column. If there is a difference in check sum value between NZ and Sailfish, its very difficult which column is the culprit. We need to be able to give checksum value per column.

2. The tool is extremely slow, especially larger tables. We should explore how to speed up the performance. 

  • Avatar32.5fb70cce7410889e661286fd7f1897de Guest
  • Jun 21 2019
  • Under Review
Who would benefit from this IDEA? All Netezza to IIAS migration customers.
How should it work?

Ideally it should work the same was as nz_checksum.

Idea Priority High
Priority Justification Most of the NZ to IIAS customers would need this tool
Customer Name Toyota Financial Services
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  • Avatar40.8f183f721a2c86cd98fddbbe6dc46ec9
    Guest commented
    21 Jun, 2019 03:14pm

    nz_checksum gives one checksum value per column

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