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https://github.com/MariaDB/server.git
synced 2025-01-19 05:22:25 +01:00
72 lines
2.5 KiB
C++
72 lines
2.5 KiB
C++
static ST_FIELD_INFO index_stats_fields[]=
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{
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{"TABLE_SCHEMA", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, "Table_schema",SKIP_OPEN_TABLE},
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{"TABLE_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, "Table_name",SKIP_OPEN_TABLE},
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{"INDEX_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, "Index_name",SKIP_OPEN_TABLE},
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{"ROWS_READ", MY_INT64_NUM_DECIMAL_DIGITS, MYSQL_TYPE_LONGLONG, 0, 0, "Rows_read",SKIP_OPEN_TABLE},
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{0, 0, MYSQL_TYPE_STRING, 0, 0, 0,0}
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};
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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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char *index_name;
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size_t schema_name_length, table_name_length, index_name_length;
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bzero((char*) &tmp_table,sizeof(tmp_table));
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tmp_table.db= index_stats->index;
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tmp_table.table_name= strend(index_stats->index)+1;
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tmp_table.grant.privilege= 0;
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if (check_access(thd, SELECT_ACL, tmp_table.db,
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&tmp_table.grant.privilege, NULL, 0, 1) ||
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check_grant(thd, SELECT_ACL, &tmp_table, 1, UINT_MAX, 1))
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continue;
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index_name= strend(tmp_table.table_name)+1;
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schema_name_length= (tmp_table.table_name - index_stats->index) -1;
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table_name_length= (index_name - tmp_table.table_name)-1;
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index_name_length= (index_stats->index_name_length - schema_name_length -
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table_name_length - 3);
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table->field[0]->store(tmp_table.db, (uint)schema_name_length,
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system_charset_info);
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table->field[1]->store(tmp_table.table_name, (uint) 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= 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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