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Knowledge Base Articles
For complete information on the sample sizes and aggregation modes, see the Sample Size and Aggregation Mode page.
The sample size determines how the query results will look.
The aggregation mode dictates what happens when multiple raw values must be processed into a single value. Here is a description of the most commonly used options.
Return format dictates how the requested data will be returned. The options are "wide" (default), in which each Tag has its own column, and "tall", in which the Tags are returned vertically in a "path, value, quality, timestamp" schema.
These options affect the query results in more subtle ways.
Tags Historian information is often easiest to work with in the Easy Chart component, which handles all of these options automatically.