Hi Lkcode-0387,
migrate large data sets from Influx to SQL Server using column mapping.
You may try to use SQL Server Import and Export Wizard to import data. After you select the existing tables and views to copy or review the query that you provided, if you click Edit mappings, the SQL Server Import and Export Wizard shows the Column Mappings dialog box.
Please refer to Start the SQL Server Import and Export Wizard and Import and Export Data with the SQL Server Import and Export Wizard which might help.
Since I am not familiar with influxdb and cannot help you well, you can open thread in the InfluxCommunity which could get more help.
Best Regards,
Amelia