Merge pull request #112 from bitol-io/dev-types-optional2

Make physicalType and logicalType optional (already in JSON schema, u…

Author: simonharrer

docs/README.md

@@ -243,9 +243,9 @@ Some keys are more applicable when the described property is a column.
 |--------------------------|------------------------------|----------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
 | primaryKey               | Primary Key                  | No       | Boolean value specifying whether the field is primary or not. Default is false.                                                                                                                                                       |
 | primaryKeyPosition       | Primary Key Position         | No       | If field is a primary key, the position of the primary key element. Starts from 1. Example of `account_id, name` being primary key columns, `account_id` has primaryKeyPosition 1 and `name` primaryKeyPosition 2. Default to -1.     |
-| logicalType              | Logical Type                 | Yes      | The logical field datatype. One of `string`, `date`, `number`, `integer`, `object`, `array` or `boolean`.                                                                                                                             |
+| logicalType              | Logical Type                 | No       | The logical field datatype. One of `string`, `date`, `number`, `integer`, `object`, `array` or `boolean`.                                                                                                                             |
 | logicalTypeOptions       | Logical Type Options         | No       | Additional optional metadata to describe the logical type. See [here](#logical-type-options) for more details about supported options for each `logicalType`.                                                                         |
-| physicalType             | Physical Type                | Yes      | The physical element data type in the data source. For example, VARCHAR(2), DOUBLE, INT.                                                                                                                                              |
+| physicalType             | Physical Type                | No       | The physical element data type in the data source. For example, VARCHAR(2), DOUBLE, INT.                                                                                                                                              |
 | description              | Description                  | No       | Description of the element.                                                                                                                                                                                                           |
 | required                 | Required                     | No       | Indicates if the element may contain Null values; possible values are true and false. Default is false.                                                                                                                               |
 | unique                   | Unique                       | No       | Indicates if the element contains unique values; possible values are true and false. Default is false.                                                                                                                                |