Custom Iterators
An iterator in Pixeltable is a function that expands a single input row into multiple output rows.
Updated Open in Colab
Create custom aggregate functions (UDAs)
Build reusable aggregation logic for group-by queries and analytics.
Core Operations · Notebook · Updated
Colab runs it in your browser. If it calls a model provider, it asks for that provider's API key in a cell.
What it covers
- Define a UDA (User-Defined Aggregate) with the @pxt.uda decorator
- Use UDAs in group_by queries
- Create UDAs with multiple inputs
What it uses
- Install
- terminalpip install pixeltable
- Pixeltable calls
pxt.create_table()@pxt.udainsert()group_by()
More in Core Operations
Browse all 103Split data into multiple rows with iterators
Transform a single document, video, image, or audio file into multiple rows for granular processing.
Updated Open in ColabTime Zones
Because typical use cases involve datasets that span multiple time zones, Pixeltable strives to be precise in how it handles time zone arithmetic for datetimes.
Updated Open in ColabYour Backend for Multimodal AI Applications
Every multimodal AI app needs the same five things: store media, run models, index embeddings, serve endpoints, version everything.
Updated Open in Colab