Skip to main content
Version: devel

dlt.dataset._join

_JoinTarget Objects​

class _JoinTarget(NamedTuple)

View source on GitHub

Resolved right-hand side of a Relation.join().

is_foreign​

True when the target lives in a different dataset than the left-hand side.

subquery​

RHS query embedded as a derived table for transformed relations; None for base tables.

_JoinRef Objects​

class _JoinRef(TypedDict)

View source on GitHub

A resolved join step from currently attached table to a target table.

on_pairs​

(existing_side_col, new_side_col) pairs for the ON clause.

This demo works on codespaces. Codespaces is a development environment available for free to anyone with a Github account. You'll be asked to fork the demo repository and from there the README guides you with further steps.
The demo uses the Continue VSCode extension.

Off to codespaces!

DHelp

Ask a question

Welcome to "Codex Central", your next-gen help center, driven by OpenAI's GPT-4 model. It's more than just a forum or a FAQ hub – it's a dynamic knowledge base where coders can find AI-assisted solutions to their pressing problems. With GPT-4's powerful comprehension and predictive abilities, Codex Central provides instantaneous issue resolution, insightful debugging, and personalized guidance. Get your code running smoothly with the unparalleled support at Codex Central - coding help reimagined with AI prowess.