Keep track of why a Target was assigned to a Tile

This table is designed to be searched both ways - one can find the Targets assigned to a Tile or one can find all the Tiles a Target has been assigned to (objects can be assigned to more than one tile if they are QA objects). Information comes from plPlugMapP files, but only OBJECT hole info is stored. HoleObj can be used to find other holetypes that made it to a Plate.

Index TypeKey or Field List
primary keytargetID, tile
foreign keyTileAll(tile)
covering unique indextile, targetID
covering indexhtmID, ra, dec, cx, cy, cz, objtype, untiled
covering unique indexobjType, targetID, tile