v1.3.1

harlequin-mysql CHANGELOG

All notable changes to this project will be documented in this file.

Unreleased

1.3.1 - 2026-08-05

• Fixes a crash after executing a USE <database>; statement, caused by the trailing semicolon (or backticks) being parsed as part of the database name (tconbeer/harlequin#982).
• Failures to get a connection from the pool are now raised as query errors, so Harlequin displays them instead of crashing.

1.3.0 - 2025-10-29

• Drops support for Python 3.9; adds support for Python 3.14
• This project is now built using uv.

1.2.0 - 2025-08-20

• Adds the --enable-cleartext-plugin option (#32 - thank you, r-cha!)

1.1.0 - 2025-01-28

• Bumps the MySQL Connector Python version to >=9.1
• Bumps the required Harlequin version to >= 1.25.0
• Adds support for the openid_token_file connection option introduced with MySQL Connector 9.1
• This adapter now lazy-loads the catalog, which will dramatically improve the catalog performance for large databases with thousands of objects.
• This adapter now implements interactions for catalog items, like dropping tables, inserting columns at the cursor, etc.

1.0.0 - 2025-01-07

• Drops support for Python 3.8
• Adds support for Python 3.13
• Adds support for Harlequin 2.X

0.3.0 - 2024-08-20

• Implements connection_id for better persistence.
• Implements the cancel() protocol to cancel in-flight queries.
• Implements close()
• Fixes a bug where a race condition could cause a crash with an AssertionError (#14 - thank you @blasferna!).

0.2.0 - 2024-04-11

Features

• Adds a pool-size CLI option to set the size of the MySQL connection pool. Defaults to 5.

Bug Fixes

• Updates the connection pool config to keep all connections in sync after running a use database command (#11 - thank you @mlopezgva!).
• Handles several issues caused by running too many concurrent queries and not fetching results.

0.1.3 - 2024-01-29

Fixes

• Fixes a typo in the help text for the --user option (thank you @alexmalins!).

0.1.2 - 2024-01-25

Fixes

• Sets the pool_name property on the MySQL connection to prevent auto-generated pool names from being too long (#6 - thank you sondeokhyeon!).

0.1.1 - 2024-01-09

Fixes

• Sorts relation names alphabetically and columns by ordinal position.

0.1.0 - 2023-12-14

Features

• Adds a basic MySQL adapter with most common connection options.