| CaseExpr | Opaleye.Internal.HaskellDB.PrimQuery | 
| CaseSqlExpr | Opaleye.Internal.HaskellDB.Sql | 
| case_ | Opaleye.Operators, Opaleye | 
| CastExpr | Opaleye.Internal.HaskellDB.PrimQuery | 
| CastSqlExpr | Opaleye.Internal.HaskellDB.Sql | 
| castToType | Opaleye.Internal.PGTypes | 
| charLength | Opaleye.Operators, Opaleye | 
| collectPEs | Opaleye.Internal.Unpackspec | 
| Column |   | 
| 1 (Type/Class) | Opaleye.Internal.Column, Opaleye.Column, Opaleye | 
| 2 (Data Constructor) | Opaleye.Internal.Column | 
| column | Opaleye.Internal.TableMaker | 
| ColumnMaker |   | 
| 1 (Type/Class) | Opaleye.Internal.TableMaker | 
| 2 (Data Constructor) | Opaleye.Internal.TableMaker | 
| ColumnSqlExpr | Opaleye.Internal.HaskellDB.Sql | 
| commaH | Opaleye.Internal.HaskellDB.Sql.Print | 
| commaV | Opaleye.Internal.HaskellDB.Sql.Print | 
| CompositeExpr | Opaleye.Internal.HaskellDB.PrimQuery | 
| CompositeSqlExpr | Opaleye.Internal.HaskellDB.Sql | 
| Constant |   | 
| 1 (Type/Class) | Opaleye.Constant, Opaleye | 
| 2 (Data Constructor) | Opaleye.Constant, Opaleye | 
| constant | Opaleye.Constant, Opaleye | 
| constantExplicit | Opaleye.Constant, Opaleye | 
| ConstExpr | Opaleye.Internal.HaskellDB.PrimQuery | 
| ConstSqlExpr | Opaleye.Internal.HaskellDB.Sql | 
| count | Opaleye.Aggregate, Opaleye | 
| countRows | Opaleye.Aggregate, Opaleye | 
| countStar | Opaleye.Aggregate, Opaleye | 
| criteria | Opaleye.Internal.Sql |