feat: render .parquet files as a data preview#9666
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Clicking a .parquet file in the file browser previously threw "No renderer available for file type: .parquet". Add a renderer that queries the file with DuckDB and shows its contents in a preview table. - Add `isPreviewableDataFile` to FileArtifact and route .parquet files to a new `ParquetWorkspace` that reads them via `read_parquet(...)` - Resolve the file's absolute path from the repo connector root, since DuckDB resolves relative paths against its own working directory - Skip fetching (binary) text content for these files - Add a dedicated icon for .parquet files in the file browser
- Explicitly target a DuckDB connector for the read_parquet query so projects whose default OLAP connector is not DuckDB (e.g. ClickHouse) still get a preview instead of an error - Key the preview query on the project-relative path and invalidate it on FILE_EVENT_WRITE, so overwriting the file refreshes the table; also skip the pointless binary content fetch for these files in the watcher
AdityaHegde
requested changes
Jul 9, 2026
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| <script> | |||
Collaborator
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This feels hacky. Maybe there is a better way to directly use Sheet icon? If it is only for setting stroke-icon-muted then lets always set it?
| `SELECT * FROM read_parquet('${absolutePath.replaceAll("'", "''")}')`, | ||
| ); | ||
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| let previewQuery = $derived( |
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Lets move this query to parquet-preview?
| if (artifact.isPreviewableDataFile) { | ||
| // Data files (e.g. .parquet) have no editable text content; refresh | ||
| // their DuckDB-powered preview instead of fetching binary content. | ||
| void queryClient.invalidateQueries({ |
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How about having some switch based on extension? Invalidating parquet queries directly feels incorrect.
Or leave a TODO at isPreviewableDataFile?
- Use the lucide `Sheet` icon directly for .parquet files instead of a one-off wrapper component - Move the preview query construction into `parquet-preview` - Invalidate the preview via an extension switch in the file invalidator rather than referencing the Parquet query key directly
nishantmonu51
added
Type:Feature
Move the ParquetWorkspace error/status strings to paraglide messages (en/es), matching the i18n framework introduced on main.
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Clicking a
.parquetfile in the file browser previously threwNo renderer available for file type: .parquet. This adds a renderer that reads the file with DuckDB and shows its contents..parquetfiles to a newParquetWorkspacethat queries the file viaread_parquet(...)(through thesqlresolver) and renders the rows and schema in the standard preview tableisPreviewableDataFileflag onFileArtifactand skip fetching the (binary) text content for these files on both theweb-localandweb-adminedit routes.parquetfiles in the file browserOnly
.parquetis included; CSV/TSV still open in the text editor.Checklist:
Developed in collaboration with Claude Code