I have a script which imports data from CSV files and inserts it directly into the History Partition tables.
Since we upgraded to 7.3.3 at the start of February, this functionality has stopped working.
My script is still inserting the data into the partitions correctly, but the trend displays are not showing it.
Trend displays for historical data generated by Ignition itself are working fine.
I know there were some changes to how historical data is stored as part of a recent release, in relation to pre-processing and so on. We haven’t enabled pre-processing, but has the handling of historical data changed behind the scenes?
One thing I did notice, that may be of interest, is that in the sqlth_partition table, the partition for February has a blocksize of “0”, where all other partitions have a blocksize of “NULL”.
It just so happens, that the last data I display is that with a timestamp before the beginning of the February partition.