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WL#2506: Information Schema tables for PARTITIONing

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added I_S 'PARTITIONS' table
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unknown
2006-01-10 19:44:04 +04:00
parent 0555413735
commit 31d3c88cae
16 changed files with 640 additions and 17 deletions
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307
sql/sql_show.cc
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@ -27,6 +27,9 @@
#include "authors.h"
#include <my_dir.h>
#ifdef WITH_PARTITION_STORAGE_ENGINE
#include "ha_partition.h"
#endif
static const char *grant_names[]={
"select","insert","update","delete","create","drop","reload","shutdown",
@ -3487,6 +3490,275 @@ static int get_schema_key_column_usage_record(THD *thd,
}
static void collect_partition_expr(List<char> &field_list, String *str)
{
List_iterator<char> part_it(field_list);
ulong no_fields= field_list.elements;
const char *field_str;
str->length(0);
while ((field_str= part_it++))
{
str->append(field_str);
if (--no_fields != 0)
str->append(",");
}
return;
}
static void store_schema_partitions_record(THD *thd, TABLE *table,
partition_element *part_elem,
handler *file, uint part_id)
{
CHARSET_INFO *cs= system_charset_info;
PARTITION_INFO stat_info;
TIME time;
file->get_dynamic_partition_info(&stat_info, part_id);
table->field[12]->store((longlong) stat_info.records, TRUE);
table->field[13]->store((longlong) stat_info.mean_rec_length, TRUE);
table->field[14]->store((longlong) stat_info.data_file_length, TRUE);
if (stat_info.max_data_file_length)
{
table->field[15]->store((longlong) stat_info.max_data_file_length, TRUE);
table->field[15]->set_notnull();
}
table->field[16]->store((longlong) stat_info.index_file_length, TRUE);
table->field[17]->store((longlong) stat_info.delete_length, TRUE);
if (stat_info.create_time)
{
thd->variables.time_zone->gmt_sec_to_TIME(&time,
stat_info.create_time);
table->field[18]->store_time(&time, MYSQL_TIMESTAMP_DATETIME);
table->field[18]->set_notnull();
}
if (stat_info.update_time)
{
thd->variables.time_zone->gmt_sec_to_TIME(&time,
stat_info.update_time);
table->field[19]->store_time(&time, MYSQL_TIMESTAMP_DATETIME);
table->field[19]->set_notnull();
}
if (stat_info.check_time)
{
thd->variables.time_zone->gmt_sec_to_TIME(&time, stat_info.check_time);
table->field[20]->store_time(&time, MYSQL_TIMESTAMP_DATETIME);
table->field[20]->set_notnull();
}
if (file->table_flags() & (ulong) HA_HAS_CHECKSUM)
{
table->field[21]->store((longlong) stat_info.check_sum, TRUE);
table->field[21]->set_notnull();
}
if (part_elem)
{
if (part_elem->part_comment)
table->field[22]->store(part_elem->part_comment,
strlen(part_elem->part_comment), cs);
else
table->field[22]->store(STRING_WITH_LEN("default"), cs);
if (part_elem->nodegroup_id != UNDEF_NODEGROUP)
table->field[23]->store((longlong) part_elem->nodegroup_id, TRUE);
else
table->field[23]->store(STRING_WITH_LEN("default"), cs);
if (part_elem->tablespace_name)
table->field[24]->store(part_elem->tablespace_name,
strlen(part_elem->tablespace_name), cs);
else
table->field[24]->store(STRING_WITH_LEN("default"), cs);
}
return;
}
static int get_schema_partitions_record(THD *thd, struct st_table_list *tables,
TABLE *table, bool res,
const char *base_name,
const char *file_name)
{
CHARSET_INFO *cs= system_charset_info;
char buff[61];
String tmp_res(buff, sizeof(buff), cs);
String tmp_str;
TIME time;
TABLE *show_table= tables->table;
handler *file= show_table->file;
partition_info *part_info= show_table->part_info;
DBUG_ENTER("get_schema_partitions_record");
if (res)
{
if (part_info)
push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
thd->net.last_errno, thd->net.last_error);
thd->clear_error();
DBUG_RETURN(0);
}
if (part_info)
{
partition_element *part_elem;
List_iterator<partition_element> part_it(part_info->partitions);
uint part_pos= 0, part_id= 0;
uint no_parts= part_info->no_parts;
handler *part_file;
restore_record(table, s->default_values);
table->field[1]->store(base_name, strlen(base_name), cs);
table->field[2]->store(file_name, strlen(file_name), cs);
/* Partition method*/
switch (part_info->part_type) {
case RANGE_PARTITION:
table->field[7]->store(partition_keywords[PKW_RANGE].str,
partition_keywords[PKW_RANGE].length, cs);
break;
case LIST_PARTITION:
table->field[7]->store(partition_keywords[PKW_LIST].str,
partition_keywords[PKW_LIST].length, cs);
break;
case HASH_PARTITION:
tmp_res.length(0);
if (part_info->linear_hash_ind)
tmp_res.append(partition_keywords[PKW_LINEAR].str,
partition_keywords[PKW_LINEAR].length);
if (part_info->list_of_part_fields)
tmp_res.append(partition_keywords[PKW_KEY].str,
partition_keywords[PKW_KEY].length);
else
tmp_res.append(partition_keywords[PKW_HASH].str,
partition_keywords[PKW_HASH].length);
table->field[7]->store(tmp_res.ptr(), tmp_res.length(), cs);
break;
default:
DBUG_ASSERT(0);
current_thd->fatal_error();
DBUG_RETURN(1);
}
table->field[7]->set_notnull();
/* Partition expression */
if (part_info->part_expr)
{
table->field[9]->store(part_info->part_func_string,
part_info->part_func_len, cs);
table->field[9]->set_notnull();
}
else if (part_info->list_of_part_fields)
{
collect_partition_expr(part_info->part_field_list, &tmp_str);
table->field[9]->store(tmp_str.ptr(), tmp_str.length(), cs);
table->field[9]->set_notnull();
}
if (is_sub_partitioned(part_info))
{
/* Subpartition method */
if (part_info->list_of_subpart_fields)
table->field[8]->store(partition_keywords[PKW_KEY].str,
partition_keywords[PKW_KEY].length, cs);
else
table->field[8]->store(partition_keywords[PKW_HASH].str,
partition_keywords[PKW_HASH].length, cs);
table->field[8]->set_notnull();
/* Subpartition expression */
if (part_info->subpart_expr)
{
table->field[10]->store(part_info->subpart_func_string,
part_info->subpart_func_len, cs);
table->field[10]->set_notnull();
}
else if (part_info->list_of_subpart_fields)
{
collect_partition_expr(part_info->subpart_field_list, &tmp_str);
table->field[10]->store(tmp_str.ptr(), tmp_str.length(), cs);
table->field[10]->set_notnull();
}
}
while ((part_elem= part_it++))
{
table->field[3]->store(part_elem->partition_name,
strlen(part_elem->partition_name), cs);
table->field[3]->set_notnull();
/* PARTITION_ORDINAL_POSITION */
table->field[5]->store((longlong) ++part_pos, TRUE);
table->field[5]->set_notnull();
/* Partition description */
if (part_info->part_type == RANGE_PARTITION)
{
if (part_elem->range_value != LONGLONG_MAX)
table->field[11]->store((longlong) part_elem->range_value, FALSE);
else
table->field[11]->store(partition_keywords[PKW_MAXVALUE].str,
partition_keywords[PKW_MAXVALUE].length, cs);
table->field[11]->set_notnull();
}
else if (part_info->part_type == LIST_PARTITION)
{
List_iterator<longlong> list_val_it(part_elem->list_val_list);
longlong *list_value;
uint no_items= part_elem->list_val_list.elements;
tmp_str.length(0);
tmp_res.length(0);
while ((list_value= list_val_it++))
{
tmp_res.set(*list_value, cs);
tmp_str.append(tmp_res);
if (--no_items != 0)
tmp_str.append(",");
};
table->field[11]->store(tmp_str.ptr(), tmp_str.length(), cs);
table->field[11]->set_notnull();
}
if (part_elem->subpartitions.elements)
{
List_iterator<partition_element> sub_it(part_elem->subpartitions);
partition_element *subpart_elem;
uint subpart_pos= 0;
while ((subpart_elem= sub_it++))
{
table->field[4]->store(subpart_elem->partition_name,
strlen(subpart_elem->partition_name), cs);
table->field[4]->set_notnull();
/* SUBPARTITION_ORDINAL_POSITION */
table->field[6]->store((longlong) ++subpart_pos, TRUE);
table->field[6]->set_notnull();
store_schema_partitions_record(thd, table, subpart_elem,
file, part_id);
part_id++;
if(schema_table_store_record(thd, table))
DBUG_RETURN(1);
}
}
else
{
store_schema_partitions_record(thd, table, part_elem,
file, part_id);
part_id++;
if(schema_table_store_record(thd, table))
DBUG_RETURN(1);
}
}
DBUG_RETURN(0);
}
else
{
store_schema_partitions_record(thd, table, 0, file, 0);
if(schema_table_store_record(thd, table))
DBUG_RETURN(1);
}
DBUG_RETURN(0);
}
int fill_open_tables(THD *thd, TABLE_LIST *tables, COND *cond)
{
DBUG_ENTER("fill_open_tables");
@ -4297,6 +4569,37 @@ ST_FIELD_INFO triggers_fields_info[]=
};
ST_FIELD_INFO partitions_fields_info[]=
{
{"TABLE_CATALOG", FN_REFLEN, MYSQL_TYPE_STRING, 0, 1, 0},
{"TABLE_SCHEMA",NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
{"TABLE_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
{"PARTITION_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 1, 0},
{"SUBPARTITION_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 1, 0},
{"PARTITION_ORDINAL_POSITION", 21 , MYSQL_TYPE_LONG, 0, 1, 0},
{"SUBPARTITION_ORDINAL_POSITION", 21 , MYSQL_TYPE_LONG, 0, 1, 0},
{"PARTITION_METHOD", 12, MYSQL_TYPE_STRING, 0, 1, 0},
{"SUBPARTITION_METHOD", 5, MYSQL_TYPE_STRING, 0, 1, 0},
{"PARTITION_EXPRESSION", 65535, MYSQL_TYPE_STRING, 0, 1, 0},
{"SUBPARTITION_EXPRESSION", 65535, MYSQL_TYPE_STRING, 0, 1, 0},
{"PARTITION_DESCRIPTION", 65535, MYSQL_TYPE_STRING, 0, 1, 0},
{"TABLE_ROWS", 21 , MYSQL_TYPE_LONG, 0, 0, 0},
{"AVG_ROW_LENGTH", 21 , MYSQL_TYPE_LONG, 0, 0, 0},
{"DATA_LENGTH", 21 , MYSQL_TYPE_LONG, 0, 0, 0},
{"MAX_DATA_LENGTH", 21 , MYSQL_TYPE_LONG, 0, 1, 0},
{"INDEX_LENGTH", 21 , MYSQL_TYPE_LONG, 0, 0, 0},
{"DATA_FREE", 21 , MYSQL_TYPE_LONG, 0, 0, 0},
{"CREATE_TIME", 0, MYSQL_TYPE_TIMESTAMP, 0, 1, 0},
{"UPDATE_TIME", 0, MYSQL_TYPE_TIMESTAMP, 0, 1, 0},
{"CHECK_TIME", 0, MYSQL_TYPE_TIMESTAMP, 0, 1, 0},
{"CHECKSUM", 21 , MYSQL_TYPE_LONG, 0, 1, 0},
{"PARTITION_COMMENT", 80, MYSQL_TYPE_STRING, 0, 0, 0},
{"NODEGROUP", 21 , MYSQL_TYPE_LONG, 0, 0, 0},
{"TABLESPACE_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
{0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
};
ST_FIELD_INFO variables_fields_info[]=
{
{"Variable_name", 80, MYSQL_TYPE_STRING, 0, 0, "Variable_name"},
@ -4340,11 +4643,13 @@ ST_SCHEMA_TABLE schema_tables[]=
{"COLUMN_PRIVILEGES", column_privileges_fields_info, create_schema_table,
fill_schema_column_privileges, 0, 0, -1, -1, 0},
{"ENGINES", engines_fields_info, create_schema_table,
fill_schema_engines, make_old_format, 0, -1, -1, 0},
fill_schema_engines, make_old_format, 0, -1, -1, 0},
{"KEY_COLUMN_USAGE", key_column_usage_fields_info, create_schema_table,
get_all_tables, 0, get_schema_key_column_usage_record, 4, 5, 0},
{"OPEN_TABLES", open_tables_fields_info, create_schema_table,
fill_open_tables, make_old_format, 0, -1, -1, 1},
{"PARTITIONS", partitions_fields_info, create_schema_table,
get_all_tables, 0, get_schema_partitions_record, 1, 2, 0},
{"PLUGINS", plugin_fields_info, create_schema_table,
fill_plugins, make_old_format, 0, -1, -1, 0},
{"ROUTINES", proc_fields_info, create_schema_table,