Release Notes for MariaDB Xpand 6.1.2
This page is part of MariaDB's Documentation.
The parent of this page is: Release Notes for MariaDB Xpand 6.1
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Overview
MariaDB Xpand is a distributed SQL database. This is the third General Availability (GA) release in the MariaDB Xpand 6.1 series.
MariaDB Xpand 6.1.2 was released on 2023-10-03.
Issues Fixed
Can result in data loss
Group changes with ongoing writes to columnar indexes can cause the columnar indexes to become corrupted. (XPAND-36922)
Scaling out using more nodes than currently in quorum overwrites the system catalog. (XPAND-37129)
Can result in a hang or crash
Setting
internode_timeout_ms
to a too-low value (for example100ms
) can prevent a cluster from forming. (XPAND-37241)Rarely, when executing a soft group change the group management protocol encounters a race condition and causes a hard group change. (XPAND-37087)
Using a large number of values in
COALESCE()
can result in a crash. (XPAND-37068)When a query compilation triggers a recompile, and the query optimizer finds an empty expression, it can result in a crash. (XPAND-36785)
Generating a debug dump can cause a crash. (XPAND-36701)
Can result in unexpected behavior
When using the Xpand Query Optimizer, sarged plans are not always encouraged over non-sarged plans. (XPAND-36788)
During a group change, excess messaging could occur. (XPAND-37216)
During upgrades,
lz4
package dependencies are not checked.Flushing the Query Plan Cache (QPC) can be over-aggressive leading to more query re-compilation and resulting in slightly decreased performance. (XPAND-37036)
URIs can be incorrectly encoded when using backup/restore from S3. (XPAND-37091)
The Host Anomaly Detector incorrectly generates error messages if non-default log locations are configured. (XPAND-36760)
Interface Changes
The
proc_vrels_disable
system variable has been added. Default value isfalse
(XPAND-36340)The
REPLICA
option has been added to theREPAIR TABLE ... SELECT
statement. (XPAND-36922)layer_max_top_layer_size_bytes
default changed from16777216
to67108864
(XPAND-36889)The
columnar_frame_size
system variable has been removed. (XPAND-36922)