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Design for Kedro Viz @preview datasets

See original GitHub issue


This ticket is a design ticket based off the technical discussion we had for #907.

The below implementation for dataset preview was agreed upon : If a user wants to preview a dataset on Kedro-viz, he/she will have to add ‘@preview’ to the dataset name in the catalog.yml.

  type: pandas.CSVDataSet
  filepath: data/01_raw/companies.csv
  layer: raw

Kedro-viz will then read this and based on the dataset type (parquet, CSV etc) it will handle the preview accordingly.

For the MVP - we are going to stick to showing the first 5(TBD by design) rows (in the metadata preview mode) and first 10(TBD by design) rows (in the expanded modal mode)

The output of this ticket will be FIGMA designs showing preview tables in the metadata panel, as well as in modals.


Kedro-viz has been used by users to

  • Debug their pipeline - now they will also be able to preview the datasets that will help them understand more
  • Tell their story - now they will also be able to share what different datasets look like when they discuss Kedro-viz with non-technical audience.


  • Include labels so that we can categorise your feature request

Issue Analytics

  • State:closed
  • Created a year ago
  • Reactions:1
  • Comments:12 (4 by maintainers)

github_iconTop GitHub Comments

rashidakanchwalacommented, Oct 31, 2022

looks great 😃

i think we can restrict the number of rows in preview to 5 and expanded modal to 10 because we don’t want to load a lot of data – it will be too heavy on the viz.

but i didn’t account for the table wideness i.e. number of columns – and this looks cool. We will have to give users to the option to horizontal scroll but maybe we can have that option only when it is expanded and not in preview

comymcommented, Oct 28, 2022

Ok cool, that makes sense

So this is only accessible from the Flowchart side

Read more comments on GitHub >

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