The list of TLS protocol versions that are permitted by the replica for the replication connection. For TLS version information, see Section 6.3.2, “Encrypted Connection TLS Protocols and Ciphers” . ( CHANGE REPLICATION SOURCE TO  option: SOURCE_TLS_VERSION , CHANGE MASTER TO  option: MASTER_TLS_VERSION ) 

• TLS_CIPHERSUITES 

The list of ciphersuites that are permitted by the replica for the replication connection. For TLS ciphersuite information, see Section 6.3.2, “Encrypted Connection TLS Protocols and Ciphers” . ( CHANGE REPLICATION SOURCE TO  option: SOURCE_TLS_CIPHERSUITES , CHANGE MASTER TO  option: MASTER_TLS_CIPHERSUITES ) 

• PUBLIC_KEY_PATH 

The path name to a file containing a replica-side copy of the public key required by the source for RSA key pair-based password exchange. The file must be in PEM format. This column applies to replicas that authenticate with the sha256_password  or caching_sha2_password  authentication plugin. ( CHANGE REPLICATION SOURCE TO  option: SOURCE_PUBLIC_KEY_PATH , CHANGE MASTER TO option: MASTER_PUBLIC_KEY_PATH ) 

If PUBLIC_KEY_PATH  is given and specifies a valid public key file, it takes precedence over GET_PUBLIC_KEY . 

• GET_PUBLIC_KEY 

Whether to request from the source the public key required for RSA key pair-based password exchange. This column applies to replicas that authenticate with the caching_sha2_password authentication plugin. For that plugin, the source does not send the public key unless requested. ( CHANGE REPLICATION SOURCE TO  option: SOURCE_GET_PUBLIC_KEY , CHANGE MASTER TO option: MASTER_GET_PUBLIC_KEY ) 

If PUBLIC_KEY_PATH  is given and specifies a valid public key file, it takes precedence over GET_PUBLIC_KEY . 

• NETWORK_NAMESPACE 

The network namespace name; empty if the connection uses the default (global) namespace. For information about network namespaces, see Section 5.1.14, “Network Namespace Support” . This column was added in MySQL 8.0.22. 

• COMPRESSION_ALGORITHMS 

The permitted compression algorithms for connections to the source. ( CHANGE REPLICATION SOURCE TO  option: SOURCE_COMPRESSION_ALGORITHMS , CHANGE MASTER TO  option: MASTER_COMPRESSION_ALGORITHMS ) 

For more information, see Section 4.2.8, “Connection Compression Control” . 

This column was added in MySQL 8.0.18. 

• ZSTD_COMPRESSION_LEVEL 

The compression level to use for connections to the source that use the zstd  compression algorithm. ( CHANGE REPLICATION SOURCE TO  option: SOURCE_ZSTD_COMPRESSION_LEVEL , CHANGE MASTER TO  option: MASTER_ZSTD_COMPRESSION_LEVEL ) 

For more information, see Section 4.2.8, “Connection Compression Control” . 

