{"templateId":"markdown","sharedDataIds":{"sidebar":"sidebar-sidebars.yaml"},"props":{"metadata":{"markdoc":{"tagList":[]},"redocly_category":"Products","product_name":"Integration Hub","type":"markdown"},"seo":{"title":"About Data Preview","description":"Treasure Data Product Documentation · Collect and Unify · Segment and Activate · Experiment and Analyze · Decisioning Automate with AI Scale and Trust.","siteUrl":"https://docs.treasuredata.com","lang":"en-US","llmstxt":{"hide":false,"sections":[{"title":"Table of contents","includeFiles":["**/*"],"excludeFiles":[]}],"excludeFiles":[]}},"dynamicMarkdocComponents":[],"compilationErrors":[],"ast":{"$$mdtype":"Tag","name":"article","attributes":{},"children":[{"$$mdtype":"Tag","name":"Heading","attributes":{"level":1,"id":"about-data-preview","__idx":0},"children":["About Data Preview"]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["Preview data is different from the actual ingestion and therefore doesn’t represent the final data ingested. Previewing data is just a way to see what the data will look like. In order to get the data back in a reasonable time, the preview data might not follow the exact parameters that you specified."]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":2,"id":"no-records-to-preview","__idx":1},"children":["No Records to Preview"]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["You might encounter situations in which there are no records to preview:"]},{"$$mdtype":"Tag","name":"ul","attributes":{},"children":[{"$$mdtype":"Tag","name":"li","attributes":{},"children":[{"$$mdtype":"Tag","name":"p","attributes":{},"children":["There is no data to preview for the data criteria specified"]}]},{"$$mdtype":"Tag","name":"li","attributes":{},"children":[{"$$mdtype":"Tag","name":"p","attributes":{},"children":["The API takes too long and times out and Treasure Data can’t fetch the preview data"]}]}]}]},"headings":[{"value":"About Data Preview","id":"about-data-preview","depth":1},{"value":"No Records to Preview","id":"no-records-to-preview","depth":2}],"frontmatter":{"seo":{"title":"About Data Preview"}},"lastModified":"2025-11-22T02:43:27.000Z","pagePropGetterError":{"message":"","name":""}},"slug":"/products/customer-data-platform/integration-hub/batch/import/about-data-preview","userData":{"isAuthenticated":false,"teams":["anonymous"]},"isPublic":true}