Details
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Type:
Story
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Status: To Do
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Resolution: Unresolved
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Fix Version/s: None
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Component/s: butler
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Labels:None
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Templates:customfield_11800 33393
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Team:Data Access and Database
Description
I wanted to look up which rafts had available biases (actually I'd have preferred to look up all the fields – see DM-10632), so I tried butler.queryMetadata("bias", ['raft']) but it failed with this traceback. I'd have expected it to return all the distinct values that had one of the 239 valid dates. It'd be acceptable to return all 239 values without making them distinct.
Note that bias is a calib dataset, it works if I use raw, but that's not useful.
butler.queryMetadata("bias", ['raft'])
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Traceback (most recent call last):
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File "<stdin>", line 1, in <module>
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File "/ssd/lsstsw/stack/Linux64/daf_persistence/13.0-20-g8cd6840/python/lsst/daf/persistence/butler.py", line 1211, in queryMetadata
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tuples = repoData.repo.queryMetadata(datasetType, format, dataId)
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File "/ssd/lsstsw/stack/Linux64/daf_persistence/13.0-20-g8cd6840/python/lsst/daf/persistence/repository.py", line 259, in queryMetadata
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ret = self._mapper.queryMetadata(*args, **kwargs)
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File "/ssd/lsstsw/stack/Linux64/daf_persistence/13.0-20-g8cd6840/python/lsst/daf/persistence/mapper.py", line 127, in queryMetadata
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val = func(format, self.validate(dataId))
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File "/home/rlupton/LSST/obs/base/python/lsst/obs/base/cameraMapper.py", line 382, in queryClosure
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return mapping.lookup(format, dataId)
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File "/home/rlupton/LSST/obs/base/python/lsst/obs/base/mapping.py", line 409, in lookup
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(columns, dataId, len(lookups)))
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RuntimeError: No unique lookup for set([u'date']) from DataId(initialdata={}, tag=set([])): 239 matches
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