Release Notes for MariaDB Xpand 6.0.6
MariaDB Xpand is a distributed SQL database.
MariaDB Xpand 6.0.6 was released on 2022-12-08.
rebalancer_rebalance_modeglobal variable to control the Xpand Rebalancer swapping behavior. (XPT-326)
rebalancer_rebalance_mode="normal"is set (the default), the rebalancer will swap slices between nodes to improve data distribution.
rebalancer_rebalance_mode="noswap"is set, the rebalancer will move slices to even out distribution, but will not swap slices between nodes.
Added support for
ALTER TABLE... RENAME COLUMNsyntax to rename a column. (XPT-504)
ALTER TABLEoperation is instant. It only requires the table's metadata to change, which allows the operation to complete instantly without rebuilding the table.
The column being renamed cannot be modified by another
ALTERspecification within the same
Can result in data loss
The number of healthy replicas and healthy zones for binlog segments is computed incorrectly. This can break replication with the error: (XPT-457)
Binlog's segment is inaccessible.
Can result in unexpected behavior
When softfailing a majority of nodes, binlog reprotection does not complete during softfail.