# col-def

A <col-def> defines a column in the mapping table. The name of the column is specified by name. The type of the column is specified by type. The type of the column defaults to nocase and is used to determine the comparison rules used when the column is used a the key column for a mapping operation.

The legal values for type are:

> Value | Description
> --- | ---
> case | Character by character case sensitive comparison.
> nocase | Character by character case insensitive comparison.
> numeric | Numeric comparison.

### Example

> See <mapping-table>.

## 1. Allowed Content

> EMPTY

## 2. Attributes

> Attribute | Value(s) | Default Value
> --- | --- | ---
> name | CDATA name of the column | #REQUIRED
> type | case | nocase | numeric type of the column | nocase

## 3. Content Declaration

> Empty

## 4. Parent Elements

> mapping-table
>   mapping table

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