ColumnError¶
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exception 
lsst.daf.relation.ColumnError¶ Bases:
lsst.daf.relation.RelationalAlgebraErrorException type raised to indicate problems in a relation’s columns and/or unique keys.
lsst.daf.relation.ColumnError¶Bases: lsst.daf.relation.RelationalAlgebraError
Exception type raised to indicate problems in a relation’s columns and/or unique keys.