Databend Open Source Weekly Issue 138

[Live broadcast preview] Will large models replace programmers? "

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What's On In Databend

Explore Databend's new developments this week and encounter Databend that is closer to your heart.

Support multi-table insertion

Databend now supports multi-table insertion. Data can be inserted into multiple different tables according to actual needs. It supports unconditional insertion and conditional insertion modes.

The syntax is as follows:

-- Unconditional multi-table insert
INSERT [ OVERWRITE ] ALL
  intoClause [ ... ]
<subquery>

-- Conditional multi-table insert
INSERT [ OVERWRITE ] { FIRST | ALL }
  { WHEN <condition> THEN intoClause [ ... ] }
  [ ... ]
  [ ELSE intoClause ]
<subquery>

If you'd like to learn more, feel free to contact the Databend team or check out the resources listed below.

PR | feat: support multi-table insert

Code Corner

Let’s explore code snippets or projects in Databend and the surrounding ecosystem.

Support OpenTelemetry context propagation

OpenTelemetry is a performance observation tool that helps track and monitor data requests in distributed systems. Databend Query now has built-in support for OpenTelemetry context propagation, allowing Databend to be better integrated into existing monitoring systems, making it easier for developers to track and analyze the flow of queries throughout the system.

Interested friends are welcome to read the following materials to learn how to use Databend Go Driver to implement distributed tracing.

Highlights

Here are some noteworthy events, maybe you can find something of interest.

Supports st_makelineand st_geometryfromewkbgeographic information functions.
Supports refreshing the inverted index after data changes, including synchronous and asynchronous modes.
STREAM supports Time Travel and specified offsets.
Read Docs | Access Control to learn about access control in Databend.

What's Up Next

We are always open to cutting-edge technologies and innovative ideas, and welcome you to join the community and inject vitality into Databend.

Support query forwarding

Databend plans to support query forwarding capabilities, which has the following two main benefits:

Flexible routing: Avoid queries having to be strictly routed to the original node that generated it.
Stateless: In situations similar to k8s (Kubernetes) deployment, the system does not need state management.

Issue #15127 | feat: query forward

If you are interested in this topic, you can try to solve some of the problems or participate in discussions and PR reviews. Alternatively, you can click on https://link.databend.rs/im-feeling-lucky to pick a random question, good luck!

New Contributors

Meet new people in the community. Databend is a better place because of you.

@kkk25641463 implemented st_makelinefunction support, #15059 .
@c8ef Fixed type mismatch in SQL logic tests, #15090 .

Changelog

Check out the changelog for Databend's daily builds to stay up to date on the latest developments.

Address: https://github.com/datafuselabs/databend/releases

Contributors

A big thank you to the contributors for their great work this week.

Connect With Us

Databend is an open source, flexible, low-cost, new data warehouse based on object storage that can also perform real-time analysis. We look forward to your attention and exploring cloud native data warehouse solutions together to create a new generation of open source Data Cloud.