LDAP authentication, 1352 ldap_server_host parameter LDAP authentication, 1352 LDML syntax, 2000 LD_LIBRARY_PATH environment variable, 300 LD_PRELOAD environment variable, 199 LD_RUN_PATH environment variable, 300, 632 LEAD(), 2422 LEAST(), 2131 LEAVE, 2802 ledir option mysqld_safe, 384 LEFT JOIN, 1667, 2671 LEFT OUTER JOIN, 2671 LEFT(), 2177 leftmost prefix of indexes, 1715, 1720 legal names, 1869 length option myisam_ftdump, 561 LENGTH(), 2177 less than (<), 2127 less than or equal (<=), 2127 libaio, 112, 181, 233 libmysql, 6163 FAQ, 5269 libmysqlclient, 6163 libmysqlclient library, 5215 libmysqld, 6163 removed features, 47 LIBMYSQL_ENABLE_CLEARTEXT_PLUGIN environment variable, 632 LIBMYSQL_PLUGINS environment variable, 632 LIBMYSQL_PLUGIN_DIR environment variable, 632 library libmysqlclient, 5215 libs option mysql_config, 628 libs_r option mysql_config, 628 license system variable, 817 lifecycle interceptor, 6164 LIKE, 2187 and indexes, 1722 and wildcards, 1722 LIMIT, 2284, 2665 and replication, 3667 optimizations, 1686 parenthesized query expressions, 2681 limitations InnoDB, 3396 replication, 3654 resource groups, 1008 limitations of NDB Cluster, 3964 limits file-size, 1741 5424