protected override bool CastLiteral(ColumnDescriptor column)
{
// if union column is not typed as varchar, it will use char(max_literal_length) type with values padded with spaces
var dataType = column.DataType;
if (dataType == DataType.Undefined)
{
dataType = column.GetConvertedDbDataType().DataType;
}
return(dataType is DataType.VarChar or DataType.NVarChar);
}
