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Changed the type of all double columns in the system statistical tables

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mysql.column_stat, mysql.table_stat for the type DECIMAL(12,4).
When cached the values from these columns are multiplied by factor 10^5
and stored as ulong numbers now.
This commit is contained in:
Igor Babaev
2012-06-25 22:33:07 -07:00
parent f549f495f7
commit 4ff6fd34da
12 changed files with 339 additions and 325 deletions
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8
mysql-test/r/system_mysql_db.result
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@ -283,9 +283,9 @@ column_stat CREATE TABLE `column_stat` (
`column_name` varchar(64) COLLATE utf8_bin NOT NULL,
`min_value` varchar(255) COLLATE utf8_bin DEFAULT NULL,
`max_value` varchar(255) COLLATE utf8_bin DEFAULT NULL,
`nulls_ratio` double DEFAULT NULL,
`avg_length` double DEFAULT NULL,
`avg_frequency` double DEFAULT NULL,
`nulls_ratio` decimal(12,4) DEFAULT NULL,
`avg_length` decimal(12,4) DEFAULT NULL,
`avg_frequency` decimal(12,4) DEFAULT NULL,
PRIMARY KEY (`db_name`,`table_name`,`column_name`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='Statistics on Columns'
show create table index_stat;
@ -295,7 +295,7 @@ index_stat CREATE TABLE `index_stat` (
`table_name` varchar(64) COLLATE utf8_bin NOT NULL,
`index_name` varchar(64) COLLATE utf8_bin NOT NULL,
`prefix_arity` int(11) unsigned NOT NULL,
`avg_frequency` double DEFAULT NULL,
`avg_frequency` decimal(12,4) DEFAULT NULL,
PRIMARY KEY (`db_name`,`table_name`,`index_name`,`prefix_arity`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='Statistics on Indexes'
show tables;