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Catalog’s data sources

When extracting data from Catalog, data sources can use the Select function.

Examples:

Catalog.Product – (simple form) extract from the Catalog Product all records, all fields

Catalog.Product | Select()  – extract from the Catalog Product all records, all fields

Catalog.Product | Select ( id as product, name, title as product_title ) – extract from the Catalog Product only those fields that are necessary, set aliases, if necessary.