ApdbSqliteQuery

class lsst.analysis.ap.ApdbSqliteQuery(filename, instrument=None, **kwargs)

Bases: DbSqlQuery

Open an sqlite3 APDB file to load data from it.

This class keeps the sqlite connection open after initialization because our sqlite usage is to load a local file. Closing and re-opening would re-scan the whole file every time, and we don’t need to worry about multiple users when working with local sqlite files.

Parameters

filenamestr

Path to the sqlite3 file containing the APDB to load.

instrumentstr

Short name (e.g. “DECam”) of instrument to make a dataId unpacker and to add to the table columns; supports any gen3 instrument. To be deprecated once this information is in the database.

Attributes Summary

connection

Context manager for database connections.

Attributes Documentation

connection