AddFieldFromExpression method
Adds a field on the fly.
Information note
The expression of a field on the fly is persisted but not its values.
Information note
The operation is successful if qSuccess is set to true.
Parameters
| Name | Description | Mandatory | Type |
|---|---|---|---|
| qName |
Name of the field. |
Yes | String |
| qExpr |
Expression value. It is not possible to use all aggregation functions. For example, you cannot add a field on the fly with an expression that uses the Sum or Count aggregation functions. |
Yes | String |
Returns
| Name | Description | Type |
|---|---|---|
| qSuccess |
True or False. |
Boolean |
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