System Variable Index
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System Variable Index

auto_increment_increment

Section A.1, “MySQL 6.0 FAQ — General”
Section 16.1.3.2, “Replication Master Options and Variables”
Section 3.6.9, “Using AUTO_INCREMENT”

auto_increment_offset

Section A.1, “MySQL 6.0 FAQ — General”
Section 16.1.3.2, “Replication Master Options and Variables”
Section 3.6.9, “Using AUTO_INCREMENT”

autocommit

Section 12.2.2, “DELETE Syntax”
Section 13.7.8.3, “SELECT ... FOR UPDATE and SELECT ... LOCK IN SHARE MODE Locking Reads”
Section 12.4.1, “START TRANSACTION, COMMIT, and ROLLBACK Syntax”
Section 5.1.5, “Session System Variables”

autocommit = 0

Section 13.7.3, “InnoDB Startup Options and System Variables”
Section 13.7.8.8, “Deadlock Detection and Rollback”
Section 13.7.8.6, “Locks Set by Different SQL Statements in InnoDB”

autocommit = 1

Section 13.7.8.9, “How to Cope with Deadlocks”
Section 12.4.5.1, “Interaction of Table Locking and Transactions”
Section 13.7.14, “Restrictions on InnoDB Tables”
Section 1.7.5.2, “Transactions and Atomic Operations”
Section 2.11.1.1, “Upgrading from MySQL 5.1 to 6.0”

automatic_sp_privileges

Section 12.1.12, “CREATE PROCEDURE and CREATE FUNCTION Syntax”
Section 5.1.4, “Server System Variables”
Section 18.2.2, “Stored Routines and MySQL Privileges”

back_log

Section 5.1.4, “Server System Variables”

backup_history_log

Section 5.1.4, “Server System Variables”

backup_history_log_file

Section 5.1.2, “Server Command Options”
Section 5.1.4, “Server System Variables”

backup_progress_log

Section 5.1.4, “Server System Variables”

backup_progress_log_file

Section 5.1.2, “Server Command Options”
Section 5.1.4, “Server System Variables”

backup_wait_timeout

Section 5.1.5, “Session System Variables”

backupdir

Section 12.5.3.1, “BACKUP DATABASE Syntax”
Section 12.5.3.3, “RESTORE Syntax”
Section 5.1.4, “Server System Variables”

basedir

Section 12.5.4.3, “INSTALL PLUGIN Syntax”
Section 5.1.4, “Server System Variables”

big_tables

Section 5.1.5, “Session System Variables”

binlog_cache_size

Section 16.1.3.4, “Binary Log Options and Variables”
Section 5.1.7, “Server Status Variables”
Section 5.2.4, “The Binary Log”

binlog_format

Section 16.1.3.4, “Binary Log Options and Variables”
Section 5.2.4.4, “Logging Format for Changes to mysql Database Tables”
Section 5.2.4.3, “Mixed Binary Logging Format”
Section 16.3.4, “Replication FAQ”
Section 16.3.1.17, “Replication of the System mysql Database”
Section 5.2.4.2, “Setting The Binary Log Format”

bulk_insert_buffer_size

Section 13.5.1, “MyISAM Startup Options”
Section 5.1.4, “Server System Variables”
Section 7.2.25, “Speed of INSERT Statements”

character_set_client

Section 12.2.6, “LOAD DATA INFILE Syntax”
Section 12.5.5, “SET Syntax”
Section 12.5.6.9, “SHOW CREATE EVENT Syntax”
Section 12.5.6.11, “SHOW CREATE PROCEDURE Syntax”
Section 12.5.6.14, “SHOW CREATE VIEW Syntax”
Section 12.5.6.19, “SHOW EVENTS Syntax”
Section 12.5.6.29, “SHOW PROCEDURE STATUS Syntax”
Section 12.5.6.38, “SHOW TRIGGERS Syntax”
Section 20.10.5, “C API Prepared Statement Data types”
Section 9.1.4, “Connection Character Sets and Collations”
Section A.11, “MySQL 6.0 FAQ — MySQL Chinese, Japanese, and Korean Character Sets”
Section 5.1.4, “Server System Variables”
Section 19.20, “The INFORMATION_SCHEMA EVENTS Table”
Section 19.14, “The INFORMATION_SCHEMA ROUTINES Table”
Section 19.16, “The INFORMATION_SCHEMA TRIGGERS Table”
Section 19.15, “The INFORMATION_SCHEMA VIEWS Table”
Section 5.2.4, “The Binary Log”

character_set_connection

Section 9.1.8.2, “CONVERT() and CAST()”
Section 12.5.5, “SET Syntax”
Section 9.1.3.5, “Character String Literal Character Set and Collation”
Section 9.1.4, “Connection Character Sets and Collations”
Section 11.6, “Date and Time Functions”
Section A.11, “MySQL 6.0 FAQ — MySQL Chinese, Japanese, and Korean Character Sets”
Section 9.8, “MySQL Server Locale Support”
Section 9.1.8.1, “Result Strings”
Section 5.1.4, “Server System Variables”
Section 9.1.7, “String Repertoire”
Section 8.1.1, “Strings”

character_set_database

Section 12.1.12, “CREATE PROCEDURE and CREATE FUNCTION Syntax”
Section 12.2.6, “LOAD DATA INFILE Syntax”
Section 12.5.5, “SET Syntax”
Section 9.1.4, “Connection Character Sets and Collations”
Section 9.1.3.2, “Database Character Set and Collation”
Section 5.1.4, “Server System Variables”

character_set_filesystem

Section 12.2.6, “LOAD DATA INFILE Syntax”
Section 12.2.9, “SELECT Syntax”
Section 5.1.2, “Server Command Options”
Section 5.1.4, “Server System Variables”
Section 11.4, “String Functions”

character_set_results

Section 12.5.5, “SET Syntax”
Section 9.1.4, “Connection Character Sets and Collations”
Section A.11, “MySQL 6.0 FAQ — MySQL Chinese, Japanese, and Korean Character Sets”
Section 5.1.4, “Server System Variables”
Section 9.1.11, “UTF-8 for Metadata”

character_set_server

Section 9.1.4, “Connection Character Sets and Collations”
Section 9.1.3.2, “Database Character Set and Collation”
Section 11.11.4, “Miscellaneous Functions”
Section 16.3.1.2, “Replication and Character Sets”
Section 9.1.3.1, “Server Character Set and Collation”
Section 5.1.4, “Server System Variables”

character_set_system

Section 5.1.4, “Server System Variables”
Section 9.1.11, “UTF-8 for Metadata”

character_sets_dir

Section 9.5.3, “Adding a Simple Collation to an 8-Bit Character Set”
Section 9.5.4, “Adding a UCA Collation to a Unicode Character Set”
Section 5.1.4, “Server System Variables”

collation_connection

Section 9.1.8.2, “CONVERT() and CAST()”
Section 12.5.5, “SET Syntax”
Section 12.5.6.9, “SHOW CREATE EVENT Syntax”
Section 12.5.6.11, “SHOW CREATE PROCEDURE Syntax”
Section 12.5.6.14, “SHOW CREATE VIEW Syntax”
Section 12.5.6.19, “SHOW EVENTS Syntax”
Section 12.5.6.29, “SHOW PROCEDURE STATUS Syntax”
Section 12.5.6.38, “SHOW TRIGGERS Syntax”
Section 9.1.3.5, “Character String Literal Character Set and Collation”
Section 9.1.4, “Connection Character Sets and Collations”
Section 11.6, “Date and Time Functions”
Section 9.1.8.1, “Result Strings”
Section 5.1.4, “Server System Variables”
Section 19.20, “The INFORMATION_SCHEMA EVENTS Table”
Section 19.14, “The INFORMATION_SCHEMA ROUTINES Table”
Section 19.16, “The INFORMATION_SCHEMA TRIGGERS Table”
Section 19.15, “The INFORMATION_SCHEMA VIEWS Table”
Section 5.2.4, “The Binary Log”

collation_database

Section 9.1.4, “Connection Character Sets and Collations”
Section 9.1.3.2, “Database Character Set and Collation”
Section 5.1.4, “Server System Variables”
Section 5.2.4, “The Binary Log”

collation_server

Section 9.1.4, “Connection Character Sets and Collations”
Section 9.1.3.2, “Database Character Set and Collation”
Section 16.3.1.2, “Replication and Character Sets”
Section 9.1.3.1, “Server Character Set and Collation”
Section 5.1.4, “Server System Variables”
Section 5.2.4, “The Binary Log”

completion_type

Section 12.4.1, “START TRANSACTION, COMMIT, and ROLLBACK Syntax”
Section 20.10.3.6, “mysql_commit()”
Section 20.10.3.57, “mysql_rollback()”
Section 5.1.4, “Server System Variables”

concurrent_insert

Section 7.3.3, “Concurrent Inserts”
Section 7.3.1, “Internal Locking Methods”
Section 7.2.28, “Other Optimization Tips”
Section 5.1.4, “Server System Variables”

connect_timeout

Section B.1.2.3, “Lost connection to MySQL server”
Section 20.10.3.52, “mysql_real_connect()”
Section B.1.2.11, “Communication Errors and Aborted Connections”
Section 5.1.4, “Server System Variables”

datadir

Section 2.3, “Installing MySQL on Windows”
Section 5.1.4, “Server System Variables”

date_format

Section 5.1.4, “Server System Variables”

datetime_format

Section 5.1.4, “Server System Variables”

debug

Section 5.1.4, “Server System Variables”

debug_sync

Section 5.1.4, “Server System Variables”

default_week_format

Section 11.6, “Date and Time Functions”
Section 5.1.4, “Server System Variables”

delay_key_write

Section 12.1.14, “CREATE TABLE Syntax”
Section 5.1.4, “Server System Variables”

delayed_insert_limit

Section 12.2.5.2, “INSERT DELAYED Syntax”
Section 5.1.4, “Server System Variables”

delayed_insert_timeout

Section 12.2.5.2, “INSERT DELAYED Syntax”
Section 5.1.4, “Server System Variables”

delayed_queue_size

Section 12.2.5.2, “INSERT DELAYED Syntax”
Section 5.1.4, “Server System Variables”

div_precision_increment

Section 11.5.1, “Arithmetic Operators”
Section 5.1.4, “Server System Variables”

engine_condition_pushdown

Section 7.2.8, “Index Condition Pushdown Optimization”
Section 5.1.2, “Server Command Options”
Section 5.1.4, “Server System Variables”

error_count

Section 12.5.6.18, “SHOW ERRORS Syntax”
Section 5.1.5, “Session System Variables”

event_scheduler

Section 12.5.6.30, “SHOW PROCESSLIST Syntax”
Section 20.9.2, “Restrictions When Using the Embedded MySQL Server”
Section 5.1.4, “Server System Variables”

expire_logs_days

Section 12.6.1.1, “PURGE BINARY LOGS Syntax”
Section 5.2.6, “Server Log Maintenance”
Section 5.1.4, “Server System Variables”

flush

Section 5.1.4, “Server System Variables”

flush_time

Section 5.1.4, “Server System Variables”

foreign_key_checks

Section 13.7.4.4, “FOREIGN KEY Constraints”
Section 16.3.1.28, “Replication and Variables”
Section 5.1.8, “Server SQL Modes”
Section 5.1.5, “Session System Variables”
Section 5.2.4, “The Binary Log”

foreign_key_checks = 0

Section 13.7.4.4, “FOREIGN KEY Constraints”
Section 5.1.5, “Session System Variables”

ft_boolean_syntax

Section 11.8.6, “Fine-Tuning MySQL Full-Text Search”
Section 5.1.4, “Server System Variables”

ft_max_word_len

Section 16.1.1.6, “Creating a Data Snapshot Using Raw Data Files”
Section 11.8.6, “Fine-Tuning MySQL Full-Text Search”
Section 21.2.2, “Full-Text Parser Plugins”
Section 5.1.4, “Server System Variables”

ft_min_word_len

Section 16.1.1.6, “Creating a Data Snapshot Using Raw Data Files”
Section 11.8.6, “Fine-Tuning MySQL Full-Text Search”
Section 21.2.2, “Full-Text Parser Plugins”
Section 5.1.4, “Server System Variables”

ft_query_expansion_limit

Section 5.1.4, “Server System Variables”

ft_stopword_file

Section 16.1.1.6, “Creating a Data Snapshot Using Raw Data Files”
Section 11.8.6, “Fine-Tuning MySQL Full-Text Search”
Section 5.1.4, “Server System Variables”

general_log

Section 1.4.1, “What Is New in MySQL 6.0”
Section 5.2.1, “Selecting General Query and Slow Query Log Output Destinations”
Section 5.1.2, “Server Command Options”
Section 5.1.4, “Server System Variables”
Section 5.2.3, “The General Query Log”

general_log_file

Section 5.2.1, “Selecting General Query and Slow Query Log Output Destinations”
Section 5.1.4, “Server System Variables”
Section 5.2.3, “The General Query Log”
Section 5.2.5, “The Slow Query Log”

group_concat_max_len

Section 11.12.1, “GROUP BY (Aggregate) Functions”
Section 5.1.4, “Server System Variables”

have_archive

Section 5.1.4, “Server System Variables”

have_blackhole_engine

Section 5.1.4, “Server System Variables”

have_community_features

Section 5.1.4, “Server System Variables”

have_compress

Section 5.1.4, “Server System Variables”

have_crypt

Section 5.1.4, “Server System Variables”

have_csv

Section 5.1.4, “Server System Variables”

have_dynamic_loading

Section 5.1.4, “Server System Variables”

have_example_engine

Section 5.1.4, “Server System Variables”

have_federated_engine

Section 5.1.4, “Server System Variables”

have_geometry

Section 5.1.4, “Server System Variables”

have_innodb

Section B.1.5.5, “Rollback Failure for Nontransactional Tables”
Section 5.1.4, “Server System Variables”

have_isam

Section 5.1.4, “Server System Variables”

have_merge_engine

Section 5.1.4, “Server System Variables”

have_openssl

Section 5.1.4, “Server System Variables”
Section 5.5.7.2, “Using SSL Connections”

have_partitioning

Chapter 17, Partitioning
Section 5.1.4, “Server System Variables”

have_profiling

Section 5.1.4, “Server System Variables”

have_query_cache

Section 7.5.5.3, “Query Cache Configuration”
Section 5.1.4, “Server System Variables”

have_raid

Section 5.1.4, “Server System Variables”

have_row_based_replication

Section 5.1.4, “Server System Variables”

have_rtree_keys

Section 5.1.4, “Server System Variables”

have_ssl

Section 5.1.4, “Server System Variables”
Section 5.5.7.2, “Using SSL Connections”

have_symlink

Section 5.1.4, “Server System Variables”

hostname

Section 5.1.4, “Server System Variables”

identity

Section 5.1.5, “Session System Variables”

ignore_builtin_innodb

Section 13.7.3, “InnoDB Startup Options and System Variables”

init_connect

Section 9.1.5, “Configuring the Character Set and Collation for Applications”
Section 16.1.3.3, “Replication Slave Options and Variables”
Section 5.1.4, “Server System Variables”

init_file

Section 5.1.4, “Server System Variables”

init_slave

Section 16.1.3.3, “Replication Slave Options and Variables”

innodb_adaptive_hash_index

Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_additional_mem_pool_size

Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_autoextend_increment

Section 13.7.2, “InnoDB Configuration”
Section 13.7.3, “InnoDB Startup Options and System Variables”
Section 13.7.5, “Adding, Removing, or Resizing InnoDB Data and Log Files”

innodb_autoinc_lock_mode

Section 13.7.3, “InnoDB Startup Options and System Variables”
Section 13.7.4.3.2, “Configurable InnoDB Auto-Increment Locking”

innodb_buffer_pool_awe_mem_mb

Section 13.7.2, “InnoDB Configuration”
Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_buffer_pool_size

Section 13.7.13.1, “InnoDB Performance Tuning Tips”
Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_checksums

Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_commit_concurrency

Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_concurrency_tickets

Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_data_file_path

Section 13.7.2, “InnoDB Configuration”
Section 13.7.3, “InnoDB Startup Options and System Variables”
Section 13.7.5, “Adding, Removing, or Resizing InnoDB Data and Log Files”
Section 13.7.2.4, “Dealing with InnoDB Initialization Problems”
Chapter 13, Storage Engines
Section 13.7.2.2, “Using Raw Devices for the Shared Tablespace”

innodb_data_home_dir

Section 13.7.2, “InnoDB Configuration”
Section 13.7.3, “InnoDB Startup Options and System Variables”
Section 13.7.2.4, “Dealing with InnoDB Initialization Problems”

innodb_doublewrite

Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_extra_dirty_writes

Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_fast_shutdown

Section 13.7.3, “InnoDB Startup Options and System Variables”
Section 13.7.5, “Adding, Removing, or Resizing InnoDB Data and Log Files”
Section 5.1.11, “The Shutdown Process”
Section 2.11.1.1, “Upgrading from MySQL 5.1 to 6.0”

innodb_file_io_threads

Section 13.7.13.2.1, “InnoDB Standard Monitor and Lock Monitor Output”
Section 13.7.3, “InnoDB Startup Options and System Variables”
Section 21.1.1, “MySQL Threads”
Section 2.11.1.1, “Upgrading from MySQL 5.1 to 6.0”

innodb_file_per_table

Section 13.7.3, “InnoDB Startup Options and System Variables”
Section 13.7.4.5, “InnoDB and MySQL Replication”
Section 13.7.2.3, “Creating the InnoDB Tablespace”
Section 13.7.12.2, “Operating System Error Codes”
Section 17.5, “Restrictions and Limitations on Partitioning”
Section 13.7.2.1, “Using Per-Table Tablespaces”

innodb_flush_log_at_trx_commit

Section 13.7.13.1, “InnoDB Performance Tuning Tips”
Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_flush_method

Section 13.7.13.1, “InnoDB Performance Tuning Tips”
Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_force_recovery

Section 13.7.3, “InnoDB Startup Options and System Variables”
Section 13.7.6.2, “Forcing InnoDB Recovery”

innodb_io_capacity

Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_lock_wait_timeout

Section 13.7.3, “InnoDB Startup Options and System Variables”
Section 13.7.8.8, “Deadlock Detection and Rollback”
Section 16.3.1.23, “Replication Retries and Timeouts”
Section 16.1.3.3, “Replication Slave Options and Variables”

innodb_locks_unsafe_for_binlog

Section 13.7.8.4, “InnoDB Record, Gap, and Next-Key Locks”
Section 13.7.3, “InnoDB Startup Options and System Variables”
Section 12.4.6, “SET TRANSACTION Syntax”
Section 13.7.8.2, “Consistent Nonlocking Reads”
Section 13.7.8.6, “Locks Set by Different SQL Statements in InnoDB”

innodb_log_arch_dir

Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_log_archive

Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_log_buffer_size

Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_log_file_size

Section 13.7.3, “InnoDB Startup Options and System Variables”
Section 2.11.1.1, “Upgrading from MySQL 5.1 to 6.0”

innodb_log_files_in_group

Section 13.7.3, “InnoDB Startup Options and System Variables”
Section 2.11.1.1, “Upgrading from MySQL 5.1 to 6.0”

innodb_log_group_home_dir

Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_max_dirty_pages_pct

Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_max_merged_io

Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_max_purge_lag

Section 13.7.9, “InnoDB Multi-Versioning”
Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_mirrored_log_groups

Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_open_files

Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_read_io_threads

Section 13.7.13.2.1, “InnoDB Standard Monitor and Lock Monitor Output”
Section 13.7.3, “InnoDB Startup Options and System Variables”
Section 2.11.1.1, “Upgrading from MySQL 5.1 to 6.0”

innodb_rollback_on_timeout

Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_stats_on_metadata

Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_support_xa

Section 13.7.13.1, “InnoDB Performance Tuning Tips”
Section 13.7.3, “InnoDB Startup Options and System Variables”
Section 13.7.8.9, “How to Cope with Deadlocks”

innodb_sync_spin_loops

Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_table_locks

Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_thread_concurrency

Section 13.7.13.2.1, “InnoDB Standard Monitor and Lock Monitor Output”
Section 13.7.3, “InnoDB Startup Options and System Variables”
Section 7.5.7, “How MySQL Uses Threads for Client Connections”

innodb_thread_concurrency_timer_based

Section 13.7.3, “InnoDB Startup Options and System Variables”
Section 5.1.7, “Server Status Variables”

innodb_thread_sleep_delay

Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_use_legacy_cardinality_algorithm

Section 13.7.3, “InnoDB Startup Options and System Variables”

innodb_write_io_threads

Section 13.7.13.2.1, “InnoDB Standard Monitor and Lock Monitor Output”
Section 13.7.3, “InnoDB Startup Options and System Variables”
Section 2.11.1.1, “Upgrading from MySQL 5.1 to 6.0”

insert_id

Section 13.13.3, “FEDERATED Storage Engine Notes and Tips”
Section 5.1.5, “Session System Variables”

interactive_timeout

Section 20.10.3.52, “mysql_real_connect()”
Section B.1.2.11, “Communication Errors and Aborted Connections”
Section 2.12.4.1, “FreeBSD Notes”
Section 2.12.2.1, “Mac OS X 10.x (Darwin)”
Section 5.1.4, “Server System Variables”

join_buffer_size

Section 7.2.11, “Nested-Loop Join Algorithms”
Section 5.1.4, “Server System Variables”

join_cache_level

Section 7.2.15.3, “Batched Key Access Joins”
Section 7.2.15.2, “Block Nested-Loop Algorithm for Outer Joins and Semi-Joins”
Section 7.2.15.1, “Join Buffer Management for Block Nested-Loop and Batched Key Access Algorithms”
Section 5.1.4, “Server System Variables”

keep_files_on_create

Section 5.1.4, “Server System Variables”

key_buffer_size

Section 7.2.2, “Estimating Query Performance”
Section 7.5.8, “How MySQL Uses Memory”
Section 6.5.3, “How to Repair Tables”
Section 7.4.5.2, “Multiple Key Caches”
Section B.1.8.1, “Open Issues in MySQL”
Section 7.4.5.6, “Restructuring a Key Cache”
Section 5.1.2, “Server Command Options”
Section 5.1.7, “Server Status Variables”
Section 5.1.4, “Server System Variables”
Section 7.2.27, “Speed of DELETE Statements”
Section 7.2.25, “Speed of INSERT Statements”
Section 5.1.6.1, “Structured System Variables”
Section 7.4.5, “The MyISAM Key Cache”
Section 7.5.3, “Tuning Server Parameters”
Section 4.2.3.3, “Using Option Files”

key_cache_age_threshold

Section 7.4.5.3, “Midpoint Insertion Strategy”
Section 5.1.4, “Server System Variables”
Section 5.1.6.1, “Structured System Variables”

key_cache_block_size

Section 7.4.5.5, “Key Cache Block Size”
Section 7.4.5.6, “Restructuring a Key Cache”
Section 5.1.4, “Server System Variables”
Section 5.1.6.1, “Structured System Variables”

key_cache_division_limit

Section 7.4.5.3, “Midpoint Insertion Strategy”
Section 5.1.4, “Server System Variables”
Section 5.1.6.1, “Structured System Variables”

language

Section 5.1.4, “Server System Variables”

large_files_support

Section 17.5, “Restrictions and Limitations on Partitioning”
Section 5.1.4, “Server System Variables”

large_page_size

Section 5.1.4, “Server System Variables”

large_pages

Section 5.1.4, “Server System Variables”

last_insert_id

Section 5.1.5, “Session System Variables”

lc_time_names

Section 11.6, “Date and Time Functions”
Section 9.8, “MySQL Server Locale Support”
Section 5.1.4, “Server System Variables”
Section 2.11.1.1, “Upgrading from MySQL 5.1 to 6.0”

license

Section 21.2.3.1, “General Plugin Structures and Functions”
Section 5.1.4, “Server System Variables”

local_infile

Section 5.1.4, “Server System Variables”

locked_in_memory

Section 5.1.4, “Server System Variables”

log

Section 5.1.2, “Server Command Options”
Section 5.1.4, “Server System Variables”

log_backup_output

Section 5.1.4, “Server System Variables”

log_bin

Section 5.1.4, “Server System Variables”

log_bin_trust_function_creators

Section 16.1.3.4, “Binary Log Options and Variables”
Section 18.6, “Binary Logging of Stored Programs”
Section A.4, “MySQL 6.0 FAQ — Stored Procedures and Functions”
Section 5.1.4, “Server System Variables”

log_error

Section 5.1.4, “Server System Variables”

log_output

Section 5.2.1, “Selecting General Query and Slow Query Log Output Destinations”
Section 5.1.4, “Server System Variables”
Section 5.2.3, “The General Query Log”
Section 5.2.5, “The Slow Query Log”

log_queries_not_using_indexes

Section 5.1.4, “Server System Variables”

log_slave_updates

Section 16.1.3.4, “Binary Log Options and Variables”
Section 5.1.4, “Server System Variables”

log_slow_queries

Section 5.1.2, “Server Command Options”
Section 5.1.4, “Server System Variables”

log_warnings

Section 5.1.4, “Server System Variables”
Section 5.2.2, “The Error Log”

long_query_time

Description
Section 5.2, “MySQL Server Logs”
Section 16.1.3.3, “Replication Slave Options and Variables”
Section 5.1.2, “Server Command Options”
Section 5.1.7, “Server Status Variables”
Section 5.1.4, “Server System Variables”
Section 5.2.5, “The Slow Query Log”

low_priority_updates

Section 5.1.4, “Server System Variables”

lower_case_file_system

Section 5.1.4, “Server System Variables”

lower_case_table_names

Section 13.7.4.4, “FOREIGN KEY Constraints”
Section 12.5.1.3, “GRANT Syntax”
Section 12.5.1.5, “REVOKE Syntax”
Section 1.6, “How to Report Bugs or Problems”
Section 8.2.2, “Identifier Case Sensitivity”
Section 5.1.4, “Server System Variables”

max_allowed_packet

Section 11.12.1, “GROUP BY (Aggregate) Functions”
Section B.1.2.3, “Lost connection to MySQL server”
Section B.1.2.9, “MySQL server has gone away”
Section B.1.2.10, “Packet too large”
Section 20.10.3.71, “mysql_use_result()”
Section B.1.2.11, “Communication Errors and Aborted Connections”
Section 11.2.3, “Comparison Functions and Operators”
Section B.1.5.6, “Deleting Rows from Related Tables”
Section 7.5.8, “How MySQL Uses Memory”
Section 20.10, “MySQL C API”
Section 5.1.4, “Server System Variables”
Section 11.4, “String Functions”
Section 10.4.3, “The BLOB and TEXT Types”
Section 4.2.3.3, “Using Option Files”

max_binlog_cache_size

Section 16.1.3.4, “Binary Log Options and Variables”
Section 5.2.4, “The Binary Log”

max_binlog_size

Section 16.1.3.4, “Binary Log Options and Variables”
Section 5.1.4, “Server System Variables”
Section 5.2.4, “The Binary Log”
Section 16.4.2.1, “The Slave Relay Log”

max_connect_errors

Section 12.5.7.3, “FLUSH Syntax”
Section B.1.2.6, “Host 'host_name' is blocked”
Section 5.1.4, “Server System Variables”

max_connections

Section B.1.2.18, “'File' Not Found and Similar Errors”
Section 12.5.1.3, “GRANT Syntax”
Section B.1.2.7, “Too many connections”
Section 21.5.1.4, “Debugging mysqld under gdb”
Section 7.4.7, “How MySQL Opens and Closes Tables”
Section 7.5.7, “How MySQL Uses Threads for Client Connections”
Section 5.5.4, “Limiting Account Resources”
Section 2.12.1.4, “Linux Post-Installation Notes”
Section 5.4.2, “Privilege System Grant Tables”
Section 5.4.1, “Privileges Provided by MySQL”
Section 5.1.2, “Server Command Options”
Section 5.1.4, “Server System Variables”

max_connections+1

Section B.1.2.7, “Too many connections”

max_delayed_threads

Section 5.1.4, “Server System Variables”

max_error_count

Section 12.2.6, “LOAD DATA INFILE Syntax”
Section 12.5.6.40, “SHOW WARNINGS Syntax”
Section 5.1.4, “Server System Variables”

max_heap_table_size

Section B.1.2.12, “The table is full”
Section 7.5.10, “How MySQL Uses Internal Temporary Tables”
Section D.3, “Restrictions on Server-Side Cursors”
Section 5.1.4, “Server System Variables”
Section 13.11, “The MEMORY (HEAP) Storage Engine”

max_insert_delayed_threads

Section 5.1.4, “Server System Variables”

max_join_size

Section 4.5.1.1, “mysql Options”
Section 12.5.5, “SET Syntax”
Section 7.2.1, “Optimizing Queries with EXPLAIN”
Section 5.1.4, “Server System Variables”
Section 5.1.5, “Session System Variables”
Section 5.1.6, “Using System Variables”

max_length_for_sort_data

Section 7.2.17, “ORDER BY Optimization”
Section 5.1.4, “Server System Variables”

max_prepared_stmt_count

Section 12.7, “SQL Syntax for Prepared Statements”
Section 5.1.7, “Server Status Variables”
Section 5.1.4, “Server System Variables”

max_relay_log_size

Section 16.1.3.4, “Binary Log Options and Variables”
Section 16.1.3.3, “Replication Slave Options and Variables”
Section 5.1.4, “Server System Variables”
Section 16.4.2.1, “The Slave Relay Log”

max_seeks_for_key

Section 13.7.14, “Restrictions on InnoDB Tables”
Section 5.1.4, “Server System Variables”

max_sort_length

Section 12.1.14, “CREATE TABLE Syntax”
Section B.1.8.1, “Open Issues in MySQL”
Section 5.1.4, “Server System Variables”
Section 10.4.3, “The BLOB and TEXT Types”

max_sp_recursion_depth

Section 5.1.4, “Server System Variables”
Section 18.2.1, “Stored Routine Syntax”

max_tmp_tables

Section 7.4.7, “How MySQL Opens and Closes Tables”
Section 5.1.4, “Server System Variables”

max_user_connections

Section 12.5.1.3, “GRANT Syntax”
Section 5.5.4, “Limiting Account Resources”
Section 5.3.2, “Making MySQL Secure Against Attackers”
Section 5.4.2, “Privilege System Grant Tables”
Section 5.1.4, “Server System Variables”

max_write_lock_count

Section 5.1.4, “Server System Variables”
Section 7.3.2, “Table Locking Issues”

min_examined_row_limit

Section 5.1.4, “Server System Variables”
Section 5.2.5, “The Slow Query Log”

myisam_data_pointer_size

Section 12.1.14, “CREATE TABLE Syntax”
Section B.1.2.12, “The table is full”
Section 5.1.4, “Server System Variables”

myisam_max_extra_sort_file_size

Section 13.5.1, “MyISAM Startup Options”

myisam_max_sort_file_size

Section 13.5.1, “MyISAM Startup Options”
Section 17.5, “Restrictions and Limitations on Partitioning”
Section 5.1.4, “Server System Variables”

myisam_recover_options

Section 5.1.4, “Server System Variables”

myisam_repair_threads

Section 5.1.4, “Server System Variables”

myisam_sort_buffer_size

Section 12.1.6, “ALTER TABLE Syntax”
Section 13.5.1, “MyISAM Startup Options”
Section 5.1.4, “Server System Variables”

myisam_stats_method

Section 7.4.6, “MyISAM Index Statistics Collection”
Section 5.1.4, “Server System Variables”

myisam_use_mmap

Section 7.5.8, “How MySQL Uses Memory”
Section 5.1.4, “Server System Variables”

named_pipe

Section 5.1.4, “Server System Variables”

net_buffer_length

Section 4.5.1.1, “mysql Options”
Description
Section 7.5.8, “How MySQL Uses Memory”
Section 20.10, “MySQL C API”
Section 5.1.4, “Server System Variables”

net_read_timeout

Section B.1.2.3, “Lost connection to MySQL server”
Section 2.12.4.1, “FreeBSD Notes”
Section 2.12.2.1, “Mac OS X 10.x (Darwin)”
Section 5.1.4, “Server System Variables”

net_retry_count

Section 20.10.3.49, “mysql_options()”
Section 5.1.4, “Server System Variables”

net_write_timeout

Section 5.1.4, “Server System Variables”

new

Section 5.1.4, “Server System Variables”

old

Section 12.2.9.2, “Index Hint Syntax”
Section 5.1.4, “Server System Variables”

old_passwords

Section 5.1.4, “Server System Variables”

one_shot

Section 5.1.4, “Server System Variables”

open_files_limit

Section B.1.2.18, “'File' Not Found and Similar Errors”
Section 17.5, “Restrictions and Limitations on Partitioning”
Section 5.1.4, “Server System Variables”

optimizer_prune_level

Section 7.5.4, “Controlling Query Optimizer Performance”
Section 5.1.4, “Server System Variables”

optimizer_search_depth

Section 7.5.4, “Controlling Query Optimizer Performance”
Section 5.1.4, “Server System Variables”

optimizer_switch

Section 7.2.16, “Semi-Join Strategies”
Section 5.1.4, “Server System Variables”
Section 7.2.22, “Using optimizer_switch to Control the Optimizer”

optimizer_use_mrr

Section 7.2.15.3, “Batched Key Access Joins”
Section 7.2.14, “Multi-Range Read Optimization”
Section 5.1.4, “Server System Variables”

pid_file

Section 5.1.4, “Server System Variables”

plugin_dir

Section 12.5.4.1, “CREATE FUNCTION Syntax”
Section 12.5.4.3, “INSTALL PLUGIN Syntax”
Section 21.2.1, “Characteristics of the Plugin Interface”
Section 21.3.2.5, “Compiling and Installing User-Defined Functions”
Section 21.2.3.3, “Creating a Plugin Library”
Section 13.4.2, “Pluggable Storage Engine Architecture”
Section 5.1.2, “Server Command Options”
Section 5.1.4, “Server System Variables”
Section 2.11.1.1, “Upgrading from MySQL 5.1 to 6.0”
Section 21.3.2.6, “User-Defined Function Security Precautions”

port

Section B.1.2.2, “Can't connect to [local] MySQL server”
Section 5.1.4, “Server System Variables”

preload_buffer_size

Section 5.1.4, “Server System Variables”

prepared_stmt_count

Section 5.1.4, “Server System Variables”

profiling

Section 12.5.6.32, “SHOW PROFILES Syntax”
Section 5.1.5, “Session System Variables”
Section 19.28, “The INFORMATION_SCHEMA PROFILING Table”

profiling_history_size

Section 12.5.6.32, “SHOW PROFILES Syntax”
Section 5.1.5, “Session System Variables”

protocol_version

Section 5.1.4, “Server System Variables”

pseudo_thread_id

Section 5.1.4, “Server System Variables”

query_alloc_block_size

Section 5.1.4, “Server System Variables”

query_cache_limit

Section 7.5.5.3, “Query Cache Configuration”
Section 5.1.4, “Server System Variables”

query_cache_min_res_unit

Section 7.5.5.3, “Query Cache Configuration”
Section 5.1.4, “Server System Variables”

query_cache_size

Section 7.5.5.3, “Query Cache Configuration”
Section 5.1.4, “Server System Variables”
Section 7.5.5, “The MySQL Query Cache”
Section 5.1.6, “Using System Variables”

query_cache_type

Section 12.2.9, “SELECT Syntax”
Section 7.5.5.2, “Query Cache SELECT Options”
Section 7.5.5.3, “Query Cache Configuration”
Section 5.1.7, “Server Status Variables”
Section 5.1.4, “Server System Variables”

query_cache_wlock_invalidate

Section 5.1.4, “Server System Variables”

query_prealloc_size

Section 5.1.4, “Server System Variables”

rand_seed1

Section 5.1.5, “Session System Variables”

rand_seed2

Section 5.1.5, “Session System Variables”

range_alloc_block_size

Section 5.1.4, “Server System Variables”

read_buffer_size

Section 7.5.8, “How MySQL Uses Memory”
Section 5.1.4, “Server System Variables”
Section 7.5.3, “Tuning Server Parameters”

read_only

Section 7.3.4, “Metadata Locking Within Transactions”
Section 5.2.1, “Selecting General Query and Slow Query Log Output Destinations”
Section 5.1.4, “Server System Variables”
Section 2.11.1.1, “Upgrading from MySQL 5.1 to 6.0”

read_rnd_buffer_size

Section 7.2.17, “ORDER BY Optimization”
Section 7.5.8, “How MySQL Uses Memory”
Section 7.2.14, “Multi-Range Read Optimization”
Section 5.1.4, “Server System Variables”
Section 7.5.3, “Tuning Server Parameters”

relay_log_purge

Section 12.6.2.1, “CHANGE MASTER TO Syntax”
Section 5.1.4, “Server System Variables”

relay_log_space_limit

Section 7.5.6.5, “Replication Slave I/O Thread States”
Section 5.1.4, “Server System Variables”

report_host

Section 5.1.4, “Server System Variables”

report_password

Section 5.1.4, “Server System Variables”

report_port

Section 5.1.4, “Server System Variables”

report_user

Section 5.1.4, “Server System Variables”

rpl_recovery_rank

Section 16.1.3.3, “Replication Slave Options and Variables”

rpl_semi_sync_master_enabled

Section 5.1.4, “Server System Variables”

rpl_semi_sync_master_reply_log_file_pos

Section 5.1.4, “Server System Variables”

rpl_semi_sync_master_timeout

Section 5.1.4, “Server System Variables”

rpl_semi_sync_master_trace_level

Section 5.1.4, “Server System Variables”

rpl_semi_sync_slave_enabled

Section 5.1.4, “Server System Variables”

rpl_semi_sync_slave_trace_level

Section 5.1.4, “Server System Variables”

secure_auth

Section 5.1.4, “Server System Variables”

secure_backup_file_priv

Section 12.5.3.1, “BACKUP DATABASE Syntax”
Section 5.1.4, “Server System Variables”

secure_file_priv

Section 12.5.3.1, “BACKUP DATABASE Syntax”
Section 12.2.6, “LOAD DATA INFILE Syntax”
Section 12.5.3.3, “RESTORE Syntax”
Section 12.2.9, “SELECT Syntax”
Section 5.1.4, “Server System Variables”
Section 11.4, “String Functions”

server_id

Section 11.11.4, “Miscellaneous Functions”
Section 5.1.4, “Server System Variables”

shared_memory

Section 5.1.4, “Server System Variables”

shared_memory_base_name

Section 5.1.4, “Server System Variables”

skip_external_locking

Section 7.3.5, “External Locking”
Section 5.1.4, “Server System Variables”

skip_networking

Section 5.1.4, “Server System Variables”

skip_show_database

Section 5.1.4, “Server System Variables”

slave_compressed_protocol

Section 16.1.3.3, “Replication Slave Options and Variables”

slave_exec_mode

Section 16.1.3.3, “Replication Slave Options and Variables”

slave_load_tmpdir

Section 16.1.3.3, “Replication Slave Options and Variables”
Section 5.1.4, “Server System Variables”

slave_net_timeout

Section 12.6.2.1, “CHANGE MASTER TO Syntax”
Section 16.3.1.15, “Replication During a Master Shutdown”
Section 7.5.6.5, “Replication Slave I/O Thread States”
Section 16.1.3.3, “Replication Slave Options and Variables”
Section 5.1.4, “Server System Variables”

slave_skip_errors

Section 16.1.3.3, “Replication Slave Options and Variables”

slave_transaction_retries

Section 16.3.1.23, “Replication Retries and Timeouts”
Section 16.1.3.3, “Replication Slave Options and Variables”

slow_launch_time

Section 5.1.7, “Server Status Variables”
Section 5.1.4, “Server System Variables”

slow_query_log

Section 5.2.1, “Selecting General Query and Slow Query Log Output Destinations”
Section 5.1.4, “Server System Variables”
Section 5.2.5, “The Slow Query Log”

slow_query_log_file

Section 5.2.1, “Selecting General Query and Slow Query Log Output Destinations”
Section 5.1.4, “Server System Variables”
Section 5.2.5, “The Slow Query Log”

socket

Section 5.1.4, “Server System Variables”

sort_buffer_size

Section 7.2.17, “ORDER BY Optimization”
Section 6.5.3, “How to Repair Tables”
Section 5.1.7, “Server Status Variables”
Section 5.1.4, “Server System Variables”
Section 7.5.3, “Tuning Server Parameters”

sql_auto_is_null

Section 16.3.1.28, “Replication and Variables”
Section 5.1.5, “Session System Variables”
Section 5.2.4, “The Binary Log”

sql_auto_is_null = 0

Section 11.2.3, “Comparison Functions and Operators”

sql_big_selects

Section 5.1.4, “Server System Variables”
Section 5.1.5, “Session System Variables”

sql_buffer_result

Section 5.1.5, “Session System Variables”

sql_log_bin

Section 12.6.1.3, “SET sql_log_bin Syntax”
Section 5.1.5, “Session System Variables”

sql_log_off

Section 5.2.1, “Selecting General Query and Slow Query Log Output Destinations”
Section 5.1.5, “Session System Variables”
Section 5.2.3, “The General Query Log”

sql_log_update

Section 5.1.5, “Session System Variables”

sql_mode

Section 12.1.9, “CREATE EVENT Syntax”
Section 12.1.12, “CREATE PROCEDURE and CREATE FUNCTION Syntax”
Section 12.1.15, “CREATE TRIGGER Syntax”
Section 12.5.6.14, “SHOW CREATE VIEW Syntax”
Section 12.5.6.38, “SHOW TRIGGERS Syntax”
Section 10.3.1.1, “TIMESTAMP Properties”
Section 1.6, “How to Report Bugs or Problems”
Section B.1.5.2, “Problems Using DATE Columns”
Section 16.3.1.28, “Replication and Variables”
Section 1.7.3, “Running MySQL in ANSI Mode”
Section 1.7.2, “Selecting SQL Modes”
Section 5.1.8, “Server SQL Modes”
Section 5.1.4, “Server System Variables”
Section 19.14, “The INFORMATION_SCHEMA ROUTINES Table”
Section 19.16, “The INFORMATION_SCHEMA TRIGGERS Table”
Section 19.15, “The INFORMATION_SCHEMA VIEWS Table”
Section 5.2.4, “The Binary Log”
Section 2.11.1.1, “Upgrading from MySQL 5.1 to 6.0”
Section 5.1.6, “Using System Variables”

sql_notes

Section 12.5.6.40, “SHOW WARNINGS Syntax”
Section 5.1.5, “Session System Variables”

sql_quote_show_create

Section 12.5.6.8, “SHOW CREATE DATABASE Syntax”
Section 12.5.6.12, “SHOW CREATE TABLE Syntax”
Section 5.1.5, “Session System Variables”

sql_safe_updates

Section 5.1.5, “Session System Variables”

sql_select_limit

Section 5.1.4, “Server System Variables”

sql_slave_skip_counter

Section 16.1.3.3, “Replication Slave Options and Variables”

sql_warnings

Section 5.1.5, “Session System Variables”

ssl_ca

Section 5.1.4, “Server System Variables”

ssl_capath

Section 5.1.4, “Server System Variables”

ssl_cert

Section 5.1.4, “Server System Variables”

ssl_cipher

Section 5.5.2, “Adding User Accounts”
Section 5.4.2, “Privilege System Grant Tables”
Section 5.1.4, “Server System Variables”

ssl_key

Section 5.1.4, “Server System Variables”

storage_engine

Section 16.3.1.28, “Replication and Variables”
Section 5.1.4, “Server System Variables”
Section 13.3, “Setting the Storage Engine”
Chapter 13, Storage Engines

sync_binlog

Section 13.7.3, “InnoDB Startup Options and System Variables”
Section 16.1.3.4, “Binary Log Options and Variables”
Section 5.2.4, “The Binary Log”

sync_frm

Section 5.1.4, “Server System Variables”

sync_master_info

Section 16.1.3.3, “Replication Slave Options and Variables”

sync_relay_log

Section 16.1.3.3, “Replication Slave Options and Variables”

sync_relay_log_info

Section 16.1.3.3, “Replication Slave Options and Variables”

system_time_zone

Section 9.7, “MySQL Server Time Zone Support”
Section 5.1.2, “Server Command Options”
Section 5.1.4, “Server System Variables”
Section 2.11.1.1, “Upgrading from MySQL 5.1 to 6.0”

table_cache

Section 7.4.7, “How MySQL Opens and Closes Tables”
Section 5.1.4, “Server System Variables”
Section 7.5.3, “Tuning Server Parameters”
Section 2.11.1.1, “Upgrading from MySQL 5.1 to 6.0”

table_definition_cache

Section 5.1.4, “Server System Variables”
Section 2.11.1.1, “Upgrading from MySQL 5.1 to 6.0”

table_lock_wait_timeout

Section 5.1.4, “Server System Variables”

table_open_cache

Section B.1.2.18, “'File' Not Found and Similar Errors”
Section 7.4.7, “How MySQL Opens and Closes Tables”
Section 5.1.2, “Server Command Options”
Section 5.1.7, “Server Status Variables”
Section 5.1.4, “Server System Variables”
Section 7.5.3, “Tuning Server Parameters”
Section 2.11.1.1, “Upgrading from MySQL 5.1 to 6.0”

table_type

Section 5.1.4, “Server System Variables”
Chapter 13, Storage Engines

thread_cache_size

Section 21.5.1.4, “Debugging mysqld under gdb”
Section 7.5.7, “How MySQL Uses Threads for Client Connections”
Section 7.2.28, “Other Optimization Tips”
Section 5.1.7, “Server Status Variables”
Section 5.1.4, “Server System Variables”

thread_concurrency

Section 5.1.4, “Server System Variables”

thread_handling

Section 7.5.7, “How MySQL Uses Threads for Client Connections”
Section 5.1.4, “Server System Variables”

thread_pool_size

Section 7.5.7, “How MySQL Uses Threads for Client Connections”
Section 5.1.4, “Server System Variables”

thread_stack

Section 7.5.8, “How MySQL Uses Memory”
Section 5.1.4, “Server System Variables”
Section 18.2.1, “Stored Routine Syntax”

time_format

Section 5.1.4, “Server System Variables”

time_zone

Section 12.5.6.19, “SHOW EVENTS Syntax”
Section 10.3.1.1, “TIMESTAMP Properties”
Section 11.6, “Date and Time Functions”
Section 9.7, “MySQL Server Time Zone Support”
Section 5.1.2, “Server Command Options”
Section 5.1.4, “Server System Variables”
Section 19.20, “The INFORMATION_SCHEMA EVENTS Table”

timed_mutexes

Section 12.5.6.16, “SHOW ENGINE Syntax”
Section 5.1.4, “Server System Variables”

timestamp

Section 13.13.3, “FEDERATED Storage Engine Notes and Tips”

timestamp = {timestamp_value | DEFAULT}

Section 5.1.5, “Session System Variables”

timezone

Section 2.11.1.1, “Upgrading from MySQL 5.1 to 6.0”

tmp_table_size

Section 7.5.6.2, “General Thread States”
Section 7.5.10, “How MySQL Uses Internal Temporary Tables”
Section 7.5.8, “How MySQL Uses Memory”
Section 5.1.7, “Server Status Variables”
Section 5.1.4, “Server System Variables”
Section 13.11, “The MEMORY (HEAP) Storage Engine”

transaction_alloc_block_size

Section 5.1.4, “Server System Variables”

transaction_prealloc_size

Section 5.1.4, “Server System Variables”

tx_isolation

Section 12.4.6, “SET TRANSACTION Syntax”
Section 5.1.4, “Server System Variables”

unique_checks

Section 13.7.4.2, “Converting Tables from Other Storage Engines to InnoDB”
Section 16.3.1.28, “Replication and Variables”
Section 5.1.5, “Session System Variables”
Section 5.2.4, “The Binary Log”

updatable_views_with_limit

Section 5.1.4, “Server System Variables”
Section 18.5.3, “Updatable and Insertable Views”

version_comment

Section 5.1.4, “Server System Variables”

version_compile_machine

Section 5.1.4, “Server System Variables”

version_compile_os

Section 5.1.4, “Server System Variables”

wait_timeout

Section B.1.2.9, “MySQL server has gone away”
Section 20.10.3.52, “mysql_real_connect()”
Section B.1.2.11, “Communication Errors and Aborted Connections”
Section 2.12.4.1, “FreeBSD Notes”
Section 2.12.2.1, “Mac OS X 10.x (Darwin)”
Section 5.1.4, “Server System Variables”

warning_count

Section 12.5.6.40, “SHOW WARNINGS Syntax”
Section 5.1.5, “Session System Variables”
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