From 06eaf7232e9a920468c0f8d74dcf2fe8b555501c Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 13 Apr 2024 14:24:36 +0200 Subject: Adding upstream version 1:10.11.6. Signed-off-by: Daniel Baumann --- plugin/userstat/index_stats.cc | 75 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 plugin/userstat/index_stats.cc (limited to 'plugin/userstat/index_stats.cc') diff --git a/plugin/userstat/index_stats.cc b/plugin/userstat/index_stats.cc new file mode 100644 index 00000000..97305e89 --- /dev/null +++ b/plugin/userstat/index_stats.cc @@ -0,0 +1,75 @@ +namespace Show { + +static ST_FIELD_INFO index_stats_fields[]= +{ + Column("TABLE_SCHEMA", Varchar(NAME_LEN), NOT_NULL, "Table_schema"), + Column("TABLE_NAME", Varchar(NAME_LEN), NOT_NULL, "Table_name"), + Column("INDEX_NAME", Varchar(NAME_LEN), NOT_NULL, "Index_name"), + Column("ROWS_READ", SLonglong(), NOT_NULL, "Rows_read"), + CEnd() +}; + +} // namespace Show + +static int index_stats_fill(THD *thd, TABLE_LIST *tables, COND *cond) +{ + TABLE *table= tables->table; + + mysql_mutex_lock(&LOCK_global_index_stats); + for (uint i= 0; i < global_index_stats.records; i++) + { + INDEX_STATS *index_stats = + (INDEX_STATS*) my_hash_element(&global_index_stats, i); + TABLE_LIST tmp_table; + const char *index_name; + size_t index_name_length; + + bzero((char*) &tmp_table,sizeof(tmp_table)); + tmp_table.db.str= index_stats->index; + tmp_table.db.length= strlen(index_stats->index); + tmp_table.table_name.str= index_stats->index + tmp_table.db.length + 1; + tmp_table.table_name.length= strlen(tmp_table.table_name.str); + tmp_table.grant.privilege= NO_ACL; + if (check_access(thd, SELECT_ACL, tmp_table.db.str, + &tmp_table.grant.privilege, NULL, 0, 1) || + check_grant(thd, SELECT_ACL, &tmp_table, 1, 1, 1)) + continue; + + index_name= tmp_table.table_name.str + tmp_table.table_name.length + 1; + index_name_length= (index_stats->index_name_length - tmp_table.db.length - + tmp_table.table_name.length - 3); + + table->field[0]->store(tmp_table.db.str, tmp_table.db.length, system_charset_info); + table->field[1]->store(tmp_table.table_name.str, tmp_table.table_name.length, + system_charset_info); + table->field[2]->store(index_name, (uint) index_name_length, system_charset_info); + table->field[3]->store((longlong)index_stats->rows_read, TRUE); + + if (schema_table_store_record(thd, table)) + { + mysql_mutex_unlock(&LOCK_global_index_stats); + return 1; + } + } + mysql_mutex_unlock(&LOCK_global_index_stats); + return 0; +} + +static int index_stats_reset() +{ + mysql_mutex_lock(&LOCK_global_index_stats); + free_global_index_stats(); + init_global_index_stats(); + mysql_mutex_unlock(&LOCK_global_index_stats); + return 0; +} + +static int index_stats_init(void *p) +{ + ST_SCHEMA_TABLE *schema= (ST_SCHEMA_TABLE *)p; + schema->fields_info= Show::index_stats_fields; + schema->fill_table= index_stats_fill; + schema->reset_table= index_stats_reset; + return 0; +} + -- cgit v1.2.3