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d09aec7a15
Shorten some VARCHAR attributes to a more reasonable length. INNODB_METRICS: Rename the column STATUS to ENABLED, and make it Boolean. Replace with INT(1) many Boolean attributes that were declared as VARCHAR containing 'NO','YES','disabled','enabled','Uninitialized','Initialized'. Replace some VARCHAR attributes with ENUM. Replace some BIGINT with INT when 32 bits are sufficient. Remove INNODB_SYS_TABLESPACES.SPACE_TYPE. The type of a tablespace can be derived from the tablespace ID. A fixed number is used for the system tablespace and the temporary tablespace. All other tablespaces are single-table or single-partition tablespaces. i_s_locks_row_t::lock_type, lock_get_type_str(): Remove. This is a redundant field. Table and record locks can be distinguished by whether i_s_locks_row_t::lock_index is NULL. fill_trx_row(): Do not unnecessarily copy the constant strings that trx->op_info is pointing to. i_s_locks_row_t::lock_mode: Replace string with integer. lock_get_mode_str(), lock_get_trx_id(), lock_get_trx(): Remove. field_store_ulint(): Remove.
27 lines
1.4 KiB
Plaintext
27 lines
1.4 KiB
Plaintext
SHOW CREATE TABLE INFORMATION_SCHEMA.INNODB_TRX;
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Table Create Table
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INNODB_TRX CREATE TEMPORARY TABLE `INNODB_TRX` (
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`trx_id` bigint(21) unsigned NOT NULL DEFAULT 0,
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`trx_state` varchar(13) NOT NULL DEFAULT '',
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`trx_started` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
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`trx_requested_lock_id` varchar(81) DEFAULT NULL,
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`trx_wait_started` datetime DEFAULT NULL,
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`trx_weight` bigint(21) unsigned NOT NULL DEFAULT 0,
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`trx_mysql_thread_id` bigint(21) unsigned NOT NULL DEFAULT 0,
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`trx_query` varchar(1024) DEFAULT NULL,
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`trx_operation_state` varchar(64) DEFAULT NULL,
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`trx_tables_in_use` bigint(21) unsigned NOT NULL DEFAULT 0,
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`trx_tables_locked` bigint(21) unsigned NOT NULL DEFAULT 0,
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`trx_lock_structs` bigint(21) unsigned NOT NULL DEFAULT 0,
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`trx_lock_memory_bytes` bigint(21) unsigned NOT NULL DEFAULT 0,
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`trx_rows_locked` bigint(21) unsigned NOT NULL DEFAULT 0,
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`trx_rows_modified` bigint(21) unsigned NOT NULL DEFAULT 0,
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`trx_concurrency_tickets` bigint(21) unsigned NOT NULL DEFAULT 0,
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`trx_isolation_level` enum('READ UNCOMMITTED','READ COMMITTED','REPEATABLE READ','SERIALIZABLE') NOT NULL DEFAULT '',
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`trx_unique_checks` int(1) NOT NULL DEFAULT 0,
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`trx_foreign_key_checks` int(1) NOT NULL DEFAULT 0,
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`trx_last_foreign_key_error` varchar(256) DEFAULT NULL,
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`trx_is_read_only` int(1) NOT NULL DEFAULT 0,
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`trx_autocommit_non_locking` int(1) NOT NULL DEFAULT 0
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) ENGINE=MEMORY DEFAULT CHARSET=utf8
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