Multi-threading

A Table contains internal "chunking" where the first n rows for all columns are part of the first chunk, then the next n rows for all columns are part of the second chunk, and so on. The geometry column of the table is a chunked geometry array, which similarly is grouped into batches of n rows.

Multi-threading is enabled out-of-the-box for all operations on these chunked data structures.

This means that to take advantage of multi-threading, your table must have internal chunking. This is the default whenever reading directly from a file (you can tweak the batch_size argument).

When creating a table from an existing data source, such as GeoPandas or Pyogrio, the data may not already be chunked. In the future, a rechunk operation will be added to assist in creating more internal chunks to ensure operations are multi-threaded.