WebServ/db/sys/schema_redundant_indexes.frm

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2024-09-27 11:15:10 +00:00
TYPE=VIEW
query=select `redundant_keys`.`table_schema` AS `table_schema`,`redundant_keys`.`table_name` AS `table_name`,`redundant_keys`.`index_name` AS `redundant_index_name`,`redundant_keys`.`index_columns` AS `redundant_index_columns`,`redundant_keys`.`non_unique` AS `redundant_index_non_unique`,`dominant_keys`.`index_name` AS `dominant_index_name`,`dominant_keys`.`index_columns` AS `dominant_index_columns`,`dominant_keys`.`non_unique` AS `dominant_index_non_unique`,if(`redundant_keys`.`subpart_exists` <> 0 or `dominant_keys`.`subpart_exists` <> 0,1,0) AS `subpart_exists`,concat(\'ALTER TABLE `\',`redundant_keys`.`table_schema`,\'`.`\',`redundant_keys`.`table_name`,\'` DROP INDEX `\',`redundant_keys`.`index_name`,\'`\') AS `sql_drop_index` from (`sys`.`x$schema_flattened_keys` `redundant_keys` join `sys`.`x$schema_flattened_keys` `dominant_keys` on(`redundant_keys`.`table_schema` = `dominant_keys`.`table_schema` and `redundant_keys`.`table_name` = `dominant_keys`.`table_name`)) where `redundant_keys`.`index_name` <> `dominant_keys`.`index_name` and (`redundant_keys`.`index_columns` = `dominant_keys`.`index_columns` and (`redundant_keys`.`non_unique` > `dominant_keys`.`non_unique` or `redundant_keys`.`non_unique` = `dominant_keys`.`non_unique` and if(`redundant_keys`.`index_name` = \'PRIMARY\',\'\',`redundant_keys`.`index_name`) > if(`dominant_keys`.`index_name` = \'PRIMARY\',\'\',`dominant_keys`.`index_name`)) or locate(concat(`redundant_keys`.`index_columns`,\',\'),`dominant_keys`.`index_columns`) = 1 and `redundant_keys`.`non_unique` = 1 or locate(concat(`dominant_keys`.`index_columns`,\',\'),`redundant_keys`.`index_columns`) = 1 and `dominant_keys`.`non_unique` = 0)
md5=b7dc42e5df448cf4a08d3059e8ecf40f
updatable=0
algorithm=2
definer_user=mariadb.sys
definer_host=localhost
suid=0
with_check_option=0
timestamp=0001724324139567299
create-version=2
source=SELECT\n redundant_keys.table_schema,\n redundant_keys.table_name,\n redundant_keys.index_name AS redundant_index_name,\n redundant_keys.index_columns AS redundant_index_columns,\n redundant_keys.non_unique AS redundant_index_non_unique,\n dominant_keys.index_name AS dominant_index_name,\n dominant_keys.index_columns AS dominant_index_columns,\n dominant_keys.non_unique AS dominant_index_non_unique,\n IF(redundant_keys.subpart_exists OR dominant_keys.subpart_exists, 1 ,0) AS subpart_exists,\n CONCAT(\n \'ALTER TABLE `\', redundant_keys.table_schema, \'`.`\', redundant_keys.table_name, \'` DROP INDEX `\', redundant_keys.index_name, \'`\'\n ) AS sql_drop_index\n FROM\n x$schema_flattened_keys AS redundant_keys\n INNER JOIN x$schema_flattened_keys AS dominant_keys\n USING (TABLE_SCHEMA, TABLE_NAME)\n WHERE\n redundant_keys.index_name != dominant_keys.index_name\n AND (\n (\n /* Identical columns */\n (redundant_keys.index_columns = dominant_keys.index_columns)\n AND (\n (redundant_keys.non_unique > dominant_keys.non_unique)\n OR (redundant_keys.non_unique = dominant_keys.non_unique\n AND IF(redundant_keys.index_name=\'PRIMARY\', \'\', redundant_keys.index_name) > IF(dominant_keys.index_name=\'PRIMARY\', \'\', dominant_keys.index_name)\n )\n )\n )\n OR\n (\n /* Non-unique prefix columns */\n LOCATE(CONCAT(redundant_keys.index_columns, \',\'), dominant_keys.index_columns) = 1\n AND redundant_keys.non_unique = 1\n )\n OR\n (\n /* Unique prefix columns */\n LOCATE(CONCAT(dominant_keys.index_columns, \',\'), redundant_keys.index_columns) = 1\n AND dominant_keys.non_unique = 0\n )\n );
client_cs_name=utf8mb3
connection_cl_name=utf8mb3_general_ci
view_body_utf8=select `redundant_keys`.`table_schema` AS `table_schema`,`redundant_keys`.`table_name` AS `table_name`,`redundant_keys`.`index_name` AS `redundant_index_name`,`redundant_keys`.`index_columns` AS `redundant_index_columns`,`redundant_keys`.`non_unique` AS `redundant_index_non_unique`,`dominant_keys`.`index_name` AS `dominant_index_name`,`dominant_keys`.`index_columns` AS `dominant_index_columns`,`dominant_keys`.`non_unique` AS `dominant_index_non_unique`,if(`redundant_keys`.`subpart_exists` <> 0 or `dominant_keys`.`subpart_exists` <> 0,1,0) AS `subpart_exists`,concat(\'ALTER TABLE `\',`redundant_keys`.`table_schema`,\'`.`\',`redundant_keys`.`table_name`,\'` DROP INDEX `\',`redundant_keys`.`index_name`,\'`\') AS `sql_drop_index` from (`sys`.`x$schema_flattened_keys` `redundant_keys` join `sys`.`x$schema_flattened_keys` `dominant_keys` on(`redundant_keys`.`table_schema` = `dominant_keys`.`table_schema` and `redundant_keys`.`table_name` = `dominant_keys`.`table_name`)) where `redundant_keys`.`index_name` <> `dominant_keys`.`index_name` and (`redundant_keys`.`index_columns` = `dominant_keys`.`index_columns` and (`redundant_keys`.`non_unique` > `dominant_keys`.`non_unique` or `redundant_keys`.`non_unique` = `dominant_keys`.`non_unique` and if(`redundant_keys`.`index_name` = \'PRIMARY\',\'\',`redundant_keys`.`index_name`) > if(`dominant_keys`.`index_name` = \'PRIMARY\',\'\',`dominant_keys`.`index_name`)) or locate(concat(`redundant_keys`.`index_columns`,\',\'),`dominant_keys`.`index_columns`) = 1 and `redundant_keys`.`non_unique` = 1 or locate(concat(`dominant_keys`.`index_columns`,\',\'),`redundant_keys`.`index_columns`) = 1 and `dominant_keys`.`non_unique` = 0)
mariadb-version=110502