database/mariadb-columnstore-engine
1
0
Fork 0
mirror of https://github.com/mariadb-corporation/mariadb-columnstore-engine.git synced 2025-08-01 06:46:55 +03:00
Code Activity

MCOL-1084 Fix TABLE_USAGE() when dict is 0 bytes

Browse Source 
Dict size of 0 bytes returns NULL which means that the total count is 0.
This fix uses COALESCE to stop this happening.
This commit is contained in:
Andrew Hutchings
2018-02-24 18:34:59 +00:00
parent ae4bb95753
commit bd71dd1d7a
1 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
dbcon/mysql/columnstore_info.sql
View File

@ -52,21 +52,21 @@ CREATE PROCEDURE table_usage (IN t_schema char(64), IN t_name char(64))
CREATE TABLE columnstore_info.columnstore_files engine=myisam as (select * from information_schema.columnstore_files);
ALTER TABLE columnstore_info.columnstore_files ADD INDEX `object_id` (`object_id`);
IF t_name IS NOT NULL THEN
SELECT TABLE_SCHEMA, TABLE_NAME, columnstore_info.format_filesize(data) as DATA_DISK_USAGE, columnstore_info.format_filesize(dict) as DICT_DISK_USAGE, columnstore_info.format_filesize(data + dict) as TOTAL_USAGE FROM (
SELECT TABLE_SCHEMA, TABLE_NAME, columnstore_info.format_filesize(data) as DATA_DISK_USAGE, columnstore_info.format_filesize(dict) as DICT_DISK_USAGE, columnstore_info.format_filesize(data + COALESCE(dict, 0)) as TOTAL_USAGE FROM (
SELECT TABLE_SCHEMA, TABLE_NAME, (SELECT sum(cf.file_size) as data FROM columnstore_info.columnstore_columns cc JOIN columnstore_info.columnstore_files cf ON cc.object_id = cf.object_id WHERE table_name = ics.table_name and table_schema = ics.table_schema) as data, (SELECT sum(cf.file_size) as dict FROM columnstore_info.columnstore_columns cc JOIN columnstore_info.columnstore_files cf ON cc.dictionary_object_id = cf.object_id WHERE table_name = ics.table_name and table_schema = ics.table_schema GROUP BY table_schema, table_name) as dict
FROM
columnstore_info.columnstore_columns ics where table_name = t_name and (table_schema = t_schema or t_schema IS NULL)
group by table_schema, table_name
) q;
ELSEIF t_schema IS NOT NULL THEN
SELECT TABLE_SCHEMA, TABLE_NAME, columnstore_info.format_filesize(data) as DATA_DISK_USAGE, columnstore_info.format_filesize(dict) as DICT_DISK_USAGE, columnstore_info.format_filesize(data + dict) as TOTAL_USAGE FROM (
SELECT TABLE_SCHEMA, TABLE_NAME, columnstore_info.format_filesize(data) as DATA_DISK_USAGE, columnstore_info.format_filesize(dict) as DICT_DISK_USAGE, columnstore_info.format_filesize(data + COALESCE(dict, 0)) as TOTAL_USAGE FROM (
SELECT TABLE_SCHEMA, TABLE_NAME, (SELECT sum(cf.file_size) as data FROM columnstore_info.columnstore_columns cc JOIN columnstore_info.columnstore_files cf ON cc.object_id = cf.object_id WHERE table_name = ics.table_name and table_schema = ics.table_schema) as data, (SELECT sum(cf.file_size) as dict FROM columnstore_info.columnstore_columns cc JOIN columnstore_info.columnstore_files cf ON cc.dictionary_object_id = cf.object_id WHERE table_name = ics.table_name and table_schema = ics.table_schema GROUP BY table_schema, table_name) as dict
FROM
columnstore_info.columnstore_columns ics where table_schema = t_schema
group by table_schema, table_name
) q;
ELSE
SELECT TABLE_SCHEMA, TABLE_NAME, columnstore_info.format_filesize(data) as DATA_DISK_USAGE, columnstore_info.format_filesize(dict) as DICT_DISK_USAGE, columnstore_info.format_filesize(data + dict) as TOTAL_USAGE FROM (
SELECT TABLE_SCHEMA, TABLE_NAME, columnstore_info.format_filesize(data) as DATA_DISK_USAGE, columnstore_info.format_filesize(dict) as DICT_DISK_USAGE, columnstore_info.format_filesize(data + COALESCE(dict, 0)) as TOTAL_USAGE FROM (
SELECT TABLE_SCHEMA, TABLE_NAME, (SELECT sum(cf.file_size) as data FROM columnstore_info.columnstore_columns cc JOIN columnstore_info.columnstore_files cf ON cc.object_id = cf.object_id WHERE table_name = ics.table_name and table_schema = ics.table_schema) as data, (SELECT sum(cf.file_size) as dict FROM columnstore_info.columnstore_columns cc JOIN columnstore_info.columnstore_files cf ON cc.dictionary_object_id = cf.object_id WHERE table_name = ics.table_name and table_schema = ics.table_schema GROUP BY table_schema, table_name) as dict
FROM
columnstore_info.columnstore_columns ics