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SELECT * FROM `SYSTEM_VARIABLES`
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VARIABLE_NAME SESSION_VALUE GLOBAL_VALUE GLOBAL_VALUE_ORIGIN DEFAULT_VALUE VARIABLE_SCOPE VARIABLE_TYPE VARIABLE_COMMENT NUMERIC_MIN_VALUE NUMERIC_MAX_VALUE NUMERIC_BLOCK_SIZE ENUM_VALUE_LIST READ_ONLY COMMAND_LINE_ARGUMENT GLOBAL_VALUE_PATH
SLAVE_TRANSACTION_RETRIES NULL 10 COMPILE-TIME 10 GLOBAL BIGINT UNSIGNED Number of times the slave SQL thread will retry a ... 0 4294967295 1 NULL NO REQUIRED NULL
PERFORMANCE_SCHEMA NULL OFF COMPILE-TIME OFF GLOBAL BOOLEAN Enable the performance schema. NULL NULL NULL OFF,ON YES OPTIONAL NULL
SQL_MODE SQL STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_... SESSION SET Sets the sql mode NULL NULL NULL REAL_AS_FLOAT,PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_S... NO REQUIRED NULL
SYSTEM_VERSIONING_ALTER_HISTORY ERROR ERROR COMPILE-TIME ERROR SESSION ENUM Versioning ALTER TABLE mode. ERROR: Fail ALTER wit... NULL NULL NULL ERROR,KEEP NO REQUIRED NULL
METADATA_LOCKS_CACHE_SIZE NULL 1024 COMPILE-TIME 1024 GLOBAL BIGINT UNSIGNED Unused 1 1048576 1 NULL YES REQUIRED NULL
PERFORMANCE_SCHEMA_EVENTS_WAITS_HISTORY_SIZE NULL -1 COMPILE-TIME -1 GLOBAL BIGINT Number of rows per thread in EVENTS_WAITS_HISTORY.... -1 1024 1 NULL YES REQUIRED NULL
SLAVE_PARALLEL_WORKERS NULL 0 COMPILE-TIME 0 GLOBAL BIGINT UNSIGNED Alias for slave_parallel_threads 0 16383 1 NULL NO REQUIRED NULL
PERFORMANCE_SCHEMA_MAX_COND_CLASSES NULL 90 COMPILE-TIME 90 GLOBAL BIGINT UNSIGNED Maximum number of condition instruments. 0 256 1 NULL YES REQUIRED NULL
INSERT_ID 0 NULL COMPILE-TIME 0 SESSION ONLY BIGINT UNSIGNED The value to be used by the following INSERT or AL... 0 18446744073709551615 1 NULL NO NULL NULL
PERFORMANCE_SCHEMA_MAX_COND_INSTANCES NULL -1 COMPILE-TIME -1 GLOBAL BIGINT Maximum number of instrumented condition objects. ... -1 1048576 1 NULL YES REQUIRED NULL
INNODB_FLUSH_LOG_AT_TIMEOUT NULL 1 COMPILE-TIME 1 GLOBAL INT UNSIGNED Write and flush logs every (n) second. 0 2700 0 NULL NO OPTIONAL NULL
PERFORMANCE_SCHEMA_MAX_RWLOCK_INSTANCES NULL -1 COMPILE-TIME -1 GLOBAL BIGINT Maximum number of instrumented RWLOCK objects. Use... -1 104857600 1 NULL YES REQUIRED NULL
INNODB_ENCRYPT_TEMPORARY_TABLES NULL OFF COMPILE-TIME OFF GLOBAL BOOLEAN Enrypt the temporary table data. NULL NULL NULL OFF,ON YES OPTIONAL NULL
PERFORMANCE_SCHEMA_MAX_PREPARED_STATEMENTS_INSTANC... NULL -1 COMPILE-TIME -1 GLOBAL BIGINT Maximum number of instrumented prepared statements... -1 1048576 1 NULL YES REQUIRED NULL
WARNING_COUNT 0 NULL COMPILE-TIME NULL SESSION ONLY BIGINT UNSIGNED The number of errors, warnings, and notes that res... 0 18446744073709551615 1 NULL YES NULL NULL
PERFORMANCE_SCHEMA_MAX_STATEMENT_STACK NULL 10 COMPILE-TIME 10 GLOBAL BIGINT UNSIGNED Number of rows per thread in EVENTS_STATEMENTS_CUR... 1 256 1 NULL YES REQUIRED NULL
OLD_ALTER_TABLE DEFAULT DEFAULT COMPILE-TIME DEFAULT SESSION ENUM Alias for alter_algorithm. Deprecated. Use --alter... NULL NULL NULL DEFAULT,COPY,INPLACE,NOCOPY,INSTANT NO OPTIONAL NULL
PERFORMANCE_SCHEMA_MAX_MUTEX_INSTANCES NULL -1 COMPILE-TIME -1 GLOBAL BIGINT Maximum number of instrumented MUTEX objects. Use ... -1 104857600 1 NULL YES REQUIRED NULL
SLAVE_TYPE_CONVERSIONS NULL COMPILE-TIME GLOBAL SET Set of slave type conversions that are enabled. If... NULL NULL NULL ALL_LOSSY,ALL_NON_LOSSY NO REQUIRED NULL
KEY_CACHE_FILE_HASH_SIZE NULL 512 COMPILE-TIME 512 GLOBAL BIGINT UNSIGNED Number of hash buckets for open and changed files.... 128 16384 1 NULL NO REQUIRED NULL
INNODB_STATS_TRANSIENT_SAMPLE_PAGES NULL 8 COMPILE-TIME 8 GLOBAL BIGINT UNSIGNED The number of leaf index pages to sample when calc... 1 18446744073709551615 0 NULL NO REQUIRED NULL
RELAY_LOG_INDEX NULL COMPILE-TIME NULL GLOBAL VARCHAR The location and name to use for the file that kee... NULL NULL NULL NULL YES NULL NULL
SLOW_LAUNCH_TIME NULL 2 COMPILE-TIME 2 GLOBAL BIGINT UNSIGNED If creating the thread takes longer than this valu... 0 31536000 1 NULL NO REQUIRED NULL
PERFORMANCE_SCHEMA_MAX_RWLOCK_CLASSES NULL 50 COMPILE-TIME 50 GLOBAL BIGINT UNSIGNED Maximum number of rwlock instruments. 0 256 1 NULL YES REQUIRED NULL
THREAD_POOL_DEDICATED_LISTENER NULL OFF COMPILE-TIME OFF GLOBAL BOOLEAN If set to 1,listener thread will not pick up queri... NULL NULL NULL OFF,ON NO OPTIONAL NULL
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