Data access and pipeline middleware

• Frequently asked questions
  • When should I use each of the query methods/commands?
    • queryCollections
    • queryDatasetTypes
    • queryDimensionRecords
    • queryDatasets
    • queryDataIds
  • Where can I find documentation for command-line butler queries?
  • Why do queries return duplicate results?
  • Why are some keys (usually filters) sometimes missing from data IDs?
  • How do I avoid errors involving queries for calibration datasets?
  • How do I fix an empty QuantumGraph?
  • What do I do if a query method/command or pipetask graph generation is slow?
  • How do I clean up processing runs I don’t need anymore?
    • Not deleting the CHAINED collection
    • Deleting only some datasets