ColumnStore Utility Functions

MariaDB ColumnStore Utility Functions are a set of simple functions that return useful information about the system, such as whether it is ready for queries. These functions were added in version 1.1.3.

Function Description
mcsSystemReady() Returns 1 if the system can accept queries, 0 if it's not ready yet.
mcsSystemReadOnly() Returns 1 if ColumnStore is in a writes suspended mode. That is, a user executed the SuspendDatabaseWrites.It returns 2 if in a read only state. ColumnStore puts itself into a read only state if it detects a logic error that may have corrupted data. Generally it means a ROLLBACK operation failed. Returns 0 if the system is writable.
Content reproduced on this site is the property of its respective owners, and this content is not reviewed in advance by MariaDB. The views, information and opinions expressed by this content do not necessarily represent those of MariaDB or any other party.

© 2019 MariaDB
Licensed under the Creative Commons Attribution 3.0 Unported License and the GNU Free Documentation License.