You can compare the number of internal on-disk temporary tables created to the total number of internal temporary tables created by comparing Created_tmp_disk_tables  and Created_tmp_tables values. 

See also Section 8.4.4, “Internal Temporary Table Use in MySQL” . 

Each invocation of the SHOW STATUS  statement uses an internal temporary table and increments the global Created_tmp_tables  value. 

• Current_tls_ca 

The active ssl_ca  value in the SSL context that the server uses for new connections. This context value may differ from the current ssl_ca  system variable value if the system variable has been changed but ALTER INSTANCE RELOAD TLS  has not subsequently been executed to reconfigure the SSL context from the context-related system variable values and update the corresponding status variables. (This potential difference in values applies to each corresponding pair of context-related system and status variables. See Server-Side Runtime Configuration and Monitoring for Encrypted Connections.) 

This variable was added in MySQL 8.0.16. 

As of MySQL 8.0.21, the Current_tls_ xxx  status variable values are also available through the Performance Schema tls_channel_status  table. See Section 27.12.21.7, “The tls_channel_status Table” . 

• Current_tls_capath 

The active ssl_capath  value in the TSL context that the server uses for new connections. For notes about the relationship between this status variable and its corresponding system variable, see the description of Current_tls_ca . 

This variable was added in MySQL 8.0.16. 

• Current_tls_cert 

The active ssl_cert  value in the TSL context that the server uses for new connections. For notes about the relationship between this status variable and its corresponding system variable, see the description of Current_tls_ca . 

This variable was added in MySQL 8.0.16. 

• Current_tls_cipher 

The active ssl_cipher  value in the TSL context that the server uses for new connections. For notes about the relationship between this status variable and its corresponding system variable, see the description of Current_tls_ca . 

This variable was added in MySQL 8.0.16. 

• Current_tls_ciphersuites 

The active tls_ciphersuites  value in the TSL context that the server uses for new connections. For notes about the relationship between this status variable and its corresponding system variable, see the description of Current_tls_ca . 

This variable was added in MySQL 8.0.16. 

• Current_tls_crl 

