1-- Add new index to tbllog_register for namespace_id
  2set @query = if ((select count(*) from information_schema.statistics where table_schema=database() and table_name='tbllog_register' and column_name='namespace_id') = 0, 'CREATE INDEX tbllog_register_namespace_id_index ON tbllog_register (namespace_id);', 'DO 0');
  3prepare statement from @query;
  4execute statement;
  5deallocate prepare statement;
  6
  7-- Add new index to tbllog_register for namespace
  8set @query = if ((select count(*) from information_schema.statistics where table_schema=database() and table_name='tbllog_register' and column_name='namespace') = 0, 'CREATE INDEX tbllog_register_namespace_index ON tbllog_register (namespace(32));', 'DO 0');
  9prepare statement from @query;
 10execute statement;
 11deallocate prepare statement;
 12
 13-- Add new index to tbllog_register for created_at
 14set @query = if ((select count(*) from information_schema.statistics where table_schema=database() and table_name='tbllog_register' and column_name='created_at') = 0, 'CREATE INDEX tbllog_register_created_at_index ON tbllog_register (created_at);', 'DO 0');
 15prepare statement from @query;
 16execute statement;
 17deallocate prepare statement;
 18