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AVEVA™ PI System™ Feedback Portal

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We created this site to hear your enhancement ideas, suggestions and feedback about AVEVA products and services. All of the feedback you share here is monitored and reviewed by the AVEVA product managers.

To start, take a look at the ideas in the list below and VOTE for your favorite ideas submitted by other users. POST your own idea if it hasn’t been suggested yet. Include COMMENTS and share relevant business case details that will help our product team get more information on the suggestion. Please note that your ideas and comments are visible to all other users.


This page is for feedback specifically for AVEVA PI System. For links to our other feedback portals, please see the tab RESOURCES below.

Status No status
Categories Data Archive
Created by Kenneth Barber
Created on Aug 20, 2022

Dictionary encoding of strings in string tags

Currently, the values of string tags are stored in full for each event, which is a waste of space for string tags that have the same values appearing frequently. To save space, please use dictionary encoding (AKA dictionary coding or dictionary compression) to store the values of string tags. The space saved for string tags that have many repeated values should hopefully offset the extra space used for string tags that have mostly unique values.
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