Install quick analysis (from here )
- Right-click the Flat File or Data Conversion object, and then click Show Advanced Editor.
- In the Advanced Editor dialog box, click the Input and Output Properties tab.
- In the Inputs and Outputs panel, click the column for which you want to enable quick parsing.
- In the Properties window, expand the custom node properties, and then set the FastParse property to True.
- Click OK.
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