GitHub user SukiSeven added a comment to the discussion: Angle brackets < > in field values are missing, and Superset slows after enabling RENDER COLUMNS IN HTML FORMAT
> Superset interprets angle brackets (`< >`) in field values as HTML tags, > which can cause the text inside them to be hidden or truncated when HTML > rendering is enabled. This is a known issue—disabling the "Render Columns in > HTML Format" option in table settings will prevent Superset from treating > angle brackets as HTML and display the full data as plain text instead. The > same applies to SQL Lab, where you should disable the "Render HTML" option > for complete data display > [[source]](https://github.com/apache/superset/issues/34082). > > Performance degradation after enabling HTML rendering is likely due to > increased DOM complexity and React rendering overhead. Rendering raw HTML in > many table cells forces the frontend to do extra parsing, escaping, and > potentially unsafe rendering, which slows down UI updates—especially with > large datasets. The DataTable component uses React hooks and memoization for > optimization, but rendering HTML content in cells can bypass these > optimizations and increase computation per cell, leading to slower table > rendering > [[source]](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset-frontend/plugins/plugin-chart-table/src/DataTable/DataTable.tsx). > > If you want to display angle brackets as plain text and improve performance, > it's best to keep HTML rendering disabled for your tables. > > _To reply, just mention [@dosu](https://go.dosu.dev/dosubot)._ > > How did I do? > [Good](https://app.dosu.dev/response-feedback/1728e222-2e98-4471-b851-ee255b4bbcd9?feedback_type=great_response) > | > [Irrelevant](https://app.dosu.dev/response-feedback/1728e222-2e98-4471-b851-ee255b4bbcd9?feedback_type=irrelevant_answer) > | > [Incorrect](https://app.dosu.dev/response-feedback/1728e222-2e98-4471-b851-ee255b4bbcd9?feedback_type=incorrect_sources) > | > [Verbose](https://app.dosu.dev/response-feedback/1728e222-2e98-4471-b851-ee255b4bbcd9?feedback_type=too_verbose) > | > [Hallucination](https://app.dosu.dev/response-feedback/1728e222-2e98-4471-b851-ee255b4bbcd9?feedback_type=hallucination) > | [Report > 🐛](https://app.dosu.dev/response-feedback/1728e222-2e98-4471-b851-ee255b4bbcd9?feedback_type=bug_report) > | > [Other](https://app.dosu.dev/response-feedback/1728e222-2e98-4471-b851-ee255b4bbcd9?feedback_type=other) > [](https://app.dosu.dev/a28d3c7e-a9d3-459e-9fb6-3a6f9ff4f357/ask?utm_source=github) [](https://go.dosu.dev/discord-bot) [](https://twitter.com/intent/tweet?text=%40dosu_ai%20helped%20me%20solve%20this%20issue!&url=https%3A//github.com/apache/superset/discussions/35050) thanks for the explanation! Could you let me know where exactly the "Render HTML" option is located in Superset (for both Table chart and SQL Lab)? I wasn’t able to find it. [@dosu](https://go.dosu.dev/dosubot). GitHub link: https://github.com/apache/superset/discussions/35050#discussioncomment-14337967 ---- This is an automatically sent email for [email protected]. To unsubscribe, please send an email to: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
