mirror of
https://github.com/MariaDB/server.git
synced 2025-10-26 08:28:13 +01:00
75 lines
2.5 KiB
C++
75 lines
2.5 KiB
C++
namespace Show {
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static ST_FIELD_INFO index_stats_fields[]=
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{
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Column("TABLE_SCHEMA", Varchar(NAME_LEN), NOT_NULL, "Table_schema"),
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Column("TABLE_NAME", Varchar(NAME_LEN), NOT_NULL, "Table_name"),
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Column("INDEX_NAME", Varchar(NAME_LEN), NOT_NULL, "Index_name"),
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Column("ROWS_READ", SLonglong(), NOT_NULL, "Rows_read"),
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CEnd()
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};
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} // namespace Show
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static int index_stats_fill(THD *thd, TABLE_LIST *tables, COND *cond)
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{
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TABLE *table= tables->table;
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mysql_mutex_lock(&LOCK_global_index_stats);
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for (uint i= 0; i < global_index_stats.records; i++)
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{
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INDEX_STATS *index_stats =
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(INDEX_STATS*) my_hash_element(&global_index_stats, i);
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TABLE_LIST tmp_table;
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const char *index_name;
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size_t index_name_length;
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bzero((char*) &tmp_table,sizeof(tmp_table));
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tmp_table.db.str= index_stats->index;
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tmp_table.db.length= strlen(index_stats->index);
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tmp_table.table_name.str= index_stats->index + tmp_table.db.length + 1;
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tmp_table.table_name.length= strlen(tmp_table.table_name.str);
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tmp_table.grant.privilege= NO_ACL;
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if (check_access(thd, SELECT_ACL, tmp_table.db.str,
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&tmp_table.grant.privilege, NULL, 0, 1) ||
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check_grant(thd, SELECT_ACL, &tmp_table, 1, 1, 1))
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continue;
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index_name= tmp_table.table_name.str + tmp_table.table_name.length + 1;
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index_name_length= (index_stats->index_name_length - tmp_table.db.length -
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tmp_table.table_name.length - 3);
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table->field[0]->store(tmp_table.db.str, tmp_table.db.length, system_charset_info);
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table->field[1]->store(tmp_table.table_name.str, tmp_table.table_name.length,
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system_charset_info);
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table->field[2]->store(index_name, (uint) index_name_length, system_charset_info);
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table->field[3]->store((longlong)index_stats->rows_read, TRUE);
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if (schema_table_store_record(thd, table))
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{
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mysql_mutex_unlock(&LOCK_global_index_stats);
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return 1;
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}
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}
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mysql_mutex_unlock(&LOCK_global_index_stats);
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return 0;
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}
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static int index_stats_reset()
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{
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mysql_mutex_lock(&LOCK_global_index_stats);
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free_global_index_stats();
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init_global_index_stats();
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mysql_mutex_unlock(&LOCK_global_index_stats);
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return 0;
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}
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static int index_stats_init(void *p)
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{
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ST_SCHEMA_TABLE *schema= (ST_SCHEMA_TABLE *)p;
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schema->fields_info= Show::index_stats_fields;
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schema->fill_table= index_stats_fill;
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schema->reset_table= index_stats_reset;
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return 0;
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}
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