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| author | Sergei Golubchik <serg@mariadb.org> | 2016-06-27 15:41:51 +0200 |
|---|---|---|
| committer | Sergei Golubchik <serg@mariadb.org> | 2016-06-30 11:43:02 +0200 |
| commit | 23d03a1b1e486da353f20964a1b91068bec209c0 (patch) | |
| tree | 7fcbd95cf634b24e7f162a9b38559f32e31df6b5 /mysql-test/r/func_op.result | |
| parent | 60916a8b9e81b9e9de14fa737848419f45ff899a (diff) | |
| download | mariadb-git-23d03a1b1e486da353f20964a1b91068bec209c0.tar.gz | |
parse negative numbers into one item
use Item->neg to convert generate negative Item_num's
instead of Item_func_neg(Item_num).
Based on the following commit:
Author: Monty <monty@mariadb.org>
Date: Mon May 30 22:44:00 2016 +0300
Make negative number their own token
The negation (-) operator will call Item->neg() one underlying numeric constants
and remove itself (like the NOT() function does today for other NOT functions.
This simplifies things
- -1 is not anymore an expression but a basic_const_item
- improves optimizer
- DEFAULT -1 doesn't need special handling anymore
- When we add DEFAULT expressions, -1 will be treated exactly like 1
- printing of items doesn't anymore put braces around all negative numbers
Other things fixed:
- Fixed that longlong converted to decimal's has a more appropriate size
- Fixed that "-0.0" read into a decimal is interpreted as 0.0
Diffstat (limited to 'mysql-test/r/func_op.result')
| -rw-r--r-- | mysql-test/r/func_op.result | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mysql-test/r/func_op.result b/mysql-test/r/func_op.result index ce755e86b4c..0d738570035 100644 --- a/mysql-test/r/func_op.result +++ b/mysql-test/r/func_op.result @@ -5,7 +5,7 @@ explain extended select 1+1,1-1,1+1*2,8/5,8%5,mod(8,5),mod(8,5)|0,-(1+1)*-2; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used Warnings: -Note 1003 select (1 + 1) AS `1+1`,(1 - 1) AS `1-1`,(1 + (1 * 2)) AS `1+1*2`,(8 / 5) AS `8/5`,(8 % 5) AS `8%5`,(8 % 5) AS `mod(8,5)`,((8 % 5) | 0) AS `mod(8,5)|0`,(-((1 + 1)) * -(2)) AS `-(1+1)*-2` +Note 1003 select (1 + 1) AS `1+1`,(1 - 1) AS `1-1`,(1 + (1 * 2)) AS `1+1*2`,(8 / 5) AS `8/5`,(8 % 5) AS `8%5`,(8 % 5) AS `mod(8,5)`,((8 % 5) | 0) AS `mod(8,5)|0`,(-((1 + 1)) * -2) AS `-(1+1)*-2` select 1 | (1+1),5 & 3,bit_count(7) ; 1 | (1+1) 5 & 3 bit_count(7) 3 1 3 |