Releases · ClickHouse/clickhouse-go

Fix Native API HTTP bugs by @SpencerTorres in #1578
Fixed critical bug with the new HTTP Native API where connections were not being released.
Also fixed random HTTP 400 errors with large batches over HTTP

Full Changelog: v2.37.0...v2.37.1

Contributors

SpencerTorres

Assets 2

16 Jun 18:24

SpencerTorres

v2.37.0

559159e

v2.37.0

What's Changed

Enhancements 🎉

Scanning Datetime and Datetime64 into int64 by @vaibhav-kt in #1560
Supports scanning of Array, IPv4, IPv6, and Map types into Go values that implement the sql.Scanner interface. by @zapateo in #1570
Support HTTP connnections in Native Go interface by @SpencerTorres in #1577 (see details at bottom of release notes!)

Bug fixes 🐛

fix: Prevent panic on slice map keys by @disq in #1567
object_json: split JSON tag to remove any trailing omitempty by @dschofie in #1547
fix: namedValue namedDatevalue usage error by @tosolveit in #1575
Fix false positives in TestInterfaceArray by @tosolveit in #1572

HTTP in ClickHouse API

This release includes a bug fix / enhancement for the "ClickHouse API" interface. Previously the only way to use HTTP was through the database/sql interface, but now you can use Protocol: clickhouse.HTTP in your clickhouse.Open options.
HTTP still has some limitations to be aware of for things like batch flushing and session context, so be cautious when switching over code to this protocol. Please report any issues you may have with this change. Native protocol shouldn't be affected, but you can downgrade to v2.36.x if you notice any issues.

New Contributors

@disq made their first contribution in #1567
@vaibhav-kt made their first contribution in #1560
@tosolveit made their first contribution in #1572
@dschofie made their first contribution in #1547
@zapateo made their first contribution in #1570

Full Changelog: v2.36.0...v2.37.0

Contributors

disq, tosolveit, and 4 other contributors

Assets 2

03 Jun 20:42

SpencerTorres

v2.36.0

81d3c10

v2.36.0

What's Changed

Enhancements 🎉

Add Close function to batch interface by @SpencerTorres in #1566

The batch.Close() function was added to prevent connections from being leaked by the batch interface. In the previous API, it is possible that an early return (due to return err or some other cause) would cause the connection to be held until the connection timed out.

Here's an example of using this new function:

batch, err := conn.PrepareBatch(ctx, "INSERT INTO function null('x UInt64') VALUES (1)")
if err != nil { . . . }
// This defer call will make sure the batch is absolutely cleaned up before it falls out of scope.
defer batch.Close()

Users should update their code to call this new function. Depending on your insert logic you may be leaking connections if Send never gets called.

Full Changelog: v2.35.0...v2.36.0