GitHub user dosubot[bot] added a comment to the discussion: Angle brackets < > in field values are missing, and Superset slows after enabling RENDER COLUMNS IN HTML FORMAT
<!-- Answer --> 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. <!-- Dosu Comment Footer --> *To reply, just mention [@dosu](https://go.dosu.dev/dosubot).* --- <sup>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)</sup> [](https://app.dosu.dev/a28d3c7e-a9d3-459e-9fb6-3a6f9ff4f357/ask?utm_source=github)& nbsp;[](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) GitHub link: https://github.com/apache/superset/discussions/35050#discussioncomment-14337829 ---- This is an automatically sent email for notifications@superset.apache.org. To unsubscribe, please send an email to: notifications-unsubscr...@superset.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: notifications-unsubscr...@superset.apache.org For additional commands, e-mail: notifications-h...@superset.apache.org
