NDB Cluster Configuration Files The number of operations by this replica based on or using primary keys. This includes operations on blob tables, implicit unlock operations, and auto-increment operations, as well as user-visible primary key operations. Although this variable can be read using either  SHOW GLOBAL STATUS  or  SHOW SESSION STATUS , it is effectively global in scope. If this MySQL server does not act as a replica, or does not use NDB tables, this value is always 0. For more information, see Section 23.5.13, “NDB API Statistics Counters and Variables” . The number of operations by this MySQL Server (SQL node) based on or using primary keys. This includes operations on blob tables, implicit unlock operations, and auto-increment operations, as well as user-visible primary key operations. Although this variable can be read using either  SHOW GLOBAL STATUS  or  SHOW SESSION STATUS , it is effectively global in scope. For more information, see Section 23.5.13, “NDB API Statistics Counters and Variables” . The number of scans in this client session that have been pruned to a single partition. Although this variable can be read using either  SHOW GLOBAL STATUS  or  SHOW SESSION STATUS , it relates to the current session only, and is not affected by any other clients of this  mysqld . For more information, see Section 23.5.13, “NDB API Statistics Counters and Variables” . The number of scans by this replica that have been pruned to a single partition. Although this variable can be read using either  SHOW GLOBAL STATUS  or  SHOW SESSION STATUS , it is effectively global in scope. If this MySQL server does not act as a replica, or does not use NDB tables, this value is always 0. For more information, see Section 23.5.13, “NDB API Statistics Counters and Variables” . Deprecated in NDB 8.0.23; use  Ndb_api_pruned_scan_count_replica instead. The number of scans by this replica that have been pruned to a single partition. Although this variable can be read using either  SHOW GLOBAL STATUS  or  SHOW SESSION STATUS , it is effectively global in scope. If this MySQL server does not act as a replica, or does not use NDB tables, this value is always 0. For more information, see Section 23.5.13, “NDB API Statistics Counters and Variables” . 4202 Note • Ndb_api_pruned_scan_count_slave • Ndb_api_pruned_scan_count_replica • Ndb_api_pruned_scan_count_session • Ndb_api_pk_op_count