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https://dev.mysql.com/doc/refman/8.4/en/gis-geometrycollection-property-functions.html
Unless otherwise specified, functions in this section handle their geometry arguments as follows: If any argument is NULL or any geometry argument is an empty geometry, the return value is NULL. If any geometry argument is not a syntactically ...
https://dev.mysql.com/doc/refman/8.4/en/gis-wkt-functions.html
These functions take as arguments a Well-Known Text (WKT) representation and, optionally, a spatial reference system identifier (SRID). For a description of WKT format, see Well-Known Text (WKT) Format. Functions in this section detect arguments in ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-bootstrap.html
The process of starting a group for the first time is called bootstrapping. The bootstrap should only be done by a single server, the one that starts the group and only once. This is why the value of the group_replication_bootstrap_group option was ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-cloning.html
If you want to use remote cloning operations for distributed recovery in a group, you must set up existing members and joining members beforehand to support this function. If you do not want to use this function in a group, do not set it up, in ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-frequently-asked-questions.html
What is the maximum number of MySQL servers in a group? A group can consist of maximum 9 servers. Attempting to add another server to a group with 9 members causes the request to join to be refused. This limit has been identified from testing and ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-functions-for-communication-protocol.html
The following functions enable you to inspect and configure the Group Replication communication protocol version that is used by a replication group. Section 20.7.4, “Message Compression” Section 20.7.5, “Message Fragmentation” Section ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-functions-for-maximum-consensus.html
The following functions enable you to inspect and configure the maximum number of consensus instances that a group can execute in parallel. group_replication_get_write_concurrency() Check the maximum number of consensus instances that a group can ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-functions-for-mode.html
The following functions enable you to control the mode which a replication group is running in, either single-primary or multi-primary mode. group_replication_switch_to_multi_primary_mode() Changes a group running in single-primary mode to ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-group-write-consensus.html
This section explains how to inspect and configure the maximum number of consensus instances at any time for a group. This maximum is referred to as the event horizon for a group, and is the maximum number of consensus instances that the group can ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-limitations.html
Limit on Group Size Limits on Transaction Size The following known limitations exist for Group Replication. Note that the limitations and issues described for multi-primary mode groups can also apply in single-primary mode clusters during a ...