Historical Queries Across Partitions

Ignition
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1

I am having difficulty with historical queries and partitions. The gateway config for Tags/History/Historian is set to Enable Partitioning with a 1 month partition. If I query using this:

data = system.tag.queryTagHistory(paths=tagSelected,

  • startDate=startTime, endDate=endTime, returnSize=numPoints, aggregationMode=aggMode, returnFormat=‘Wide’)*

I get 0’s returned for dates older than 1 month. How can I include results from other partitions in this query?

I am using Ignition 8.0.3 with Linux.

thanks much

2

Sounds like a bug worth reporting. The whole point of the tag history bindings and scripting functions is to eliminate your need to worry about the partitions.

3

Looks like I was wrong, the tag historical data just didn’t go back any further than one month. It’s a new month and I see non-zero values. User Error.