The NExScI TAP Service

Getting "Up and Running"

• The NExScI TAP Service
  • What is NExScI TAP?
  • Structure of this Documentation
• Installation Instructions
  • Beforehand
  • Quickstart
  • Not-so-Quick Start
• Configuration Instructions
• Operations Issues
• Notes on Data Formatting
• Notes on TAP Clients

Appendices

• Behind the Scenes: How the TAP Service Works
  • Asynchronous TAP Requests
  • Synchronous TAP Requests
  • Refinements
  • Clients
• Setting up Your TAP_SCHEMA Tables
• Keeping Your Data Secure
• DBMS-Agnostic Spatial Indexing
  • B-Tree
  • Composite Indices
  • Tesselation
  • HTM and HPX
  • Optimal Tesselation
• Adding Spatial Indexing to Your Data
  • Do I Need a Spatial Index
  • Augmenting Your Tables with the Necessary Columns
  • Computing Values for the New Columns
• Converting ADQL to Local SQL
  • SQL Variations Between DBMSs
  • Our Approach
  • Extending the Paradigm
  • What’s Not Implemented in ADQL
  • Convex Polygons
• Extending the Service
  • Support for Different DBMSs
  • Table Upload
  • Dealing with Proprietary Data
  • Dealing with Extended Objects (Images in Particular)
• A Note on Coordinates

The Code

• spatial_index Docstrings
• ADQL Docstrings
• TAP Docstrings