Class ParquetColumn
This attribute defines the mapping between a property name and the name of a column in a parquet file.
When using the ParquetDestination, the WriteOrder defines the order of the columns in the file.
Inheritance
ParquetColumn
Namespace: ETLBox.Parquet
Assembly: ETLBox.Parquet.dll
Syntax
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```C#
[AttributeUsage(AttributeTargets.Property)]
public class ParquetColumn : Attribute
```
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Examples
public class MyPoco
{
[ParquetColumn("NameInParquet", WriteOrder: 1)]
public string SomeProperty { get; set; }
[ParquetColumn(WriterOrder: 2)]
public string AnotherProperty { get; set; }
}
Constructors
ParquetColumn()
Declaration
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```C#
public ParquetColumn()
```
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ParquetColumn(int)
Declaration
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```C#
public ParquetColumn(int writeOrder)
```
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Parameters
| Type |
Name |
Description |
| int |
writeOrder |
|
ParquetColumn(string)
Declaration
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```C#
public ParquetColumn(string columnName)
```
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Parameters
| Type |
Name |
Description |
| string |
columnName |
|
ParquetColumn(string, int)
Declaration
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```C#
public ParquetColumn(string columnName, int writeOrder)
```
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Parameters
| Type |
Name |
Description |
| string |
columnName |
|
| int |
writeOrder |
|
Properties
ColumnName
Declaration
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```C#
public string ColumnName { get; set; }
```
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Property Value
PropertyName
Declaration
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```C#
public string PropertyName { get; set; }
```
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Property Value
WriteOrder
Declaration
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```C#
public int WriteOrder { get; set; }
```
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Property Value
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