When set to true, the provider will aggregate all the files located in the URI directory that have the same schema into a single table called AggregatedFiles .

Data Type

bool

Default Value

false

Remarks

By default, the first file in the folder is used to define the schema, however MetadataDiscoveryURI can be specified to use a different file instead.

Take for example the following CSV contents.

File 1

ItemID,Name,NumInStock
1,Peanuts - Salted,76
2,Peanuts - Unsalted,43
3,Raisins,26

File 2

ItemID,Name,NumInStock
4,Pretzels - Original,55
5,Pretzels - Chocolate,35
6,Toffee,44

The resulting aggregate table is shown below. Note that only the columns present in the defined schema are used in the aggregate.

AggregateFiles

ItemID,Name,NumInStock
1,Peanuts - Salted,76
2,Peanuts - Unsalted,43
3,Raisins,26
4,Pretzels - Original,55
5,Pretzels - Chocolate,35
6,Toffee,44