Skip to content
Projects
Groups
Snippets
Help
Loading...
Help
Support
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in / Register
Toggle navigation
M
MariaDB
Project overview
Project overview
Details
Activity
Releases
Repository
Repository
Files
Commits
Branches
Tags
Contributors
Graph
Compare
Issues
0
Issues
0
List
Boards
Labels
Milestones
Merge Requests
0
Merge Requests
0
CI / CD
CI / CD
Pipelines
Jobs
Schedules
Analytics
Analytics
CI / CD
Repository
Value Stream
Wiki
Wiki
Snippets
Snippets
Members
Members
Collapse sidebar
Close sidebar
Activity
Graph
Create a new issue
Jobs
Commits
Issue Boards
Open sidebar
nexedi
MariaDB
Commits
8bad6162
Commit
8bad6162
authored
Sep 05, 2002
by
unknown
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
Fix invalid Texinfo formatting and rephrase text.
Also copied note to 'know bugs and misfeatures' section.
parent
3c6f77d5
Changes
1
Hide whitespace changes
Inline
Side-by-side
Showing
1 changed file
with
10 additions
and
5 deletions
+10
-5
Docs/manual.texi
Docs/manual.texi
+10
-5
No files found.
Docs/manual.texi
View file @
8bad6162
...
@@ -3464,6 +3464,11 @@ that in MySQL Server, @code{VARCHAR} columns are treated the same way.
...
@@ -3464,6 +3464,11 @@ that in MySQL Server, @code{VARCHAR} columns are treated the same way.
@item
@item
You can only have up to 255 @code{ENUM} and @code{SET} columns in one table.
You can only have up to 255 @code{ENUM} and @code{SET} columns in one table.
@item
In @code{MIN()}, @code{MAX()} and other aggregate functions, MySQL
currently compares @code{ENUM} and @code{SET} columns by their string
value rather than by the string's relative position in the set.
@item
@item
@code{safe_mysqld} redirects all messages from @code{mysqld} to the
@code{safe_mysqld} redirects all messages from @code{mysqld} to the
@code{mysqld} log. One problem with this is that if you execute
@code{mysqld} log. One problem with this is that if you execute
...
@@ -33868,17 +33873,17 @@ Returns the minimum or maximum value of @code{expr}. @code{MIN()} and
...
@@ -33868,17 +33873,17 @@ Returns the minimum or maximum value of @code{expr}. @code{MIN()} and
@code{MAX()} may take a string argument; in such cases they return the
@code{MAX()} may take a string argument; in such cases they return the
minimum or maximum string value. @xref{MySQL indexes}.
minimum or maximum string value. @xref{MySQL indexes}.
There is one inconsistency in MySQL in handling @code[ENUM] and @code[SET]
types when it comes to @code{MIN()}, @code{MAX()} and other aggregating
functions. MySQL will compare values based on string values of the columns,
instead of it's relative position. This will be fixed in future.
@example
@example
mysql> SELECT student_name, MIN(test_score), MAX(test_score)
mysql> SELECT student_name, MIN(test_score), MAX(test_score)
-> FROM student
-> FROM student
-> GROUP BY student_name;
-> GROUP BY student_name;
@end example
@end example
In @code{MIN()}, @code{MAX()} and other aggregate functions, MySQL
currently compares @code{ENUM} and @code{SET} columns by their string
value rather than by the string's relative position in the set.
This will be rectified.
@findex SUM()
@findex SUM()
@item SUM(expr)
@item SUM(expr)
Returns the sum of @code{expr}. Note that if the return set has no rows,
Returns the sum of @code{expr}. Note that if the return set has no rows,
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment