Defining the dataset sample size

To ensure optimal performances, Talend Data Preparation limits the number of rows that are displayed in the grid at 10,000 rows by default.

This means that even if you import a 50,000 rows dataset for example, only a sample of the first 10,000 rows will be displayed in the application. This limit applies to all dataset types. However, this value is not hard-coded and can be modified by editing the Talend Data Preparation configuration file.