In MySQL, this can have values “ A ” (Ascending) or NULL (Not sorted). . The

Oct 11, 2007 . I'm getting a Cardinality of 1 on all FULLTEXT indexes I create even though I

optimizations and helping the MySQL optimizer choose the appropriate index for

Once I convert that table to myisam, the cardinality is much closer and very

I have added a FULLTEXT index to one of my MySQL database tables . If you

We discovered the solution thanks to a DBA who took a look. I wanted to leave

I'm using MySQL 5.0.92 with InnoDB and have 2 question regarding the

mysql> SHOW INDEXES FROM user_relationships; . As can be seen from these

record search is quicker. Put the columns with the highest cardinality as the first

Feb 22, 2008 . Cardinality refers to how many unique values a particular column contains with

when I use "show indexes" commander for a table continuously, I found the

Nov 3, 2009 . Last night I was asked about index cardinality. One of the members of the North

Max cardinality: All values are unique. Min cardinality: All values are the same.

What does cardinality mean in mysql (phpmyadmin) on an index? I'm seeing

Apr 22, 2005 . On the MySQL mailing list, people often ask for help in making a . . The

Sep 27, 2010 . Cardinality is really important too, it's the uniqueness of the values included in the

Oct 11, 2007 . Hi, I am still quite new to Indexes, but am trying to get my FULLTEXT indexes to

MySQL Cardinality of integers. . Delphi cardinality of a relationship in mysql;

Oct 20, 2005 . cardinality on mysql searchs- MySQL Help. Visit Dev Shed to discuss cardinality

Hi there, can anyone explains what are this means: Keyname FK9D39. .? and

Lists indexes in MySQL by how effective they are (cardinality / rows). Public

Oct 7, 2010 . MySQL. In data modeling, explaining how each table links to another is known as

SHOW INDEXES FROM for tables involved and check cardinality) Different stats

Apr 23, 2012 . mysql> show index from mybigusertable; . crazy cardinality counts for show

Oct 8, 2010 . In data modeling, explaining how each table links to another is known as

Jan 11, 2011 . On a side note, Indexes with low cardinality should be BITMAP Indexes, however

Feb 4, 2011 . You should always strive to create indexes with a good cardinality. If MySQL

I'm having performance problems on the live version of a system . NULL

Apr 3, 2009 . After partitioning mysql thinks that cardinality of each index equals to the

Sep 28, 2009 . Here I'll grab a bunch of cardinality estimates from sakila.film on MySQL 5.0.45

Look at this answer on how mysql indexes work on stackoverflow. Basically an

Aug 3, 2007 . It's higly confusing based on the documentation, but lowering this variable

Jan 15, 2012 . Cardinality [. ] By Stefan Simsih Category: Database Design and Development (

Whereas a higher cardinality means less efficient storage, but faster read

Jul 13, 2011 . In this context, cardinality refers to the number of unique values in a column. For

2/ is that cardinality important to know? I read that big cardinality will ensure that

Feb 26, 2008 . When deciding whether to create a new index, or to split a table, it's useful to

I noticed a very strange problem with innodb. Using 'show index from xyz' to

Nov 7, 2010 . 4 messages in com.mysql.lists.internalsOn-line cardinality for MEMORY . But

What the heck is "Cardinality" ? I've been thinking it's the number of unique row

Mar 13, 2008 . Updating/changing the cardinality of MySQL table- ASP Development. Visit ASP

Mar 16, 2007 . Wiki tells me: In mathematics , the cardinality of a set is a measure of the "number

First if you followed MySQL upgrade best …SHOW INDEXES FROM for tables

Feb 7, 2010 . Cardinality and selectivity are two keywords that are very important when dealing

Sep 8, 2011 . I have a MyISAM table in a MySQL database on an Ubuntu 10.04 server with

Sep 27, 2009 . Cardinality is represented by numbers for the minimum and maximum . Oracle

the cardinality of a column is the number of distinct values stored in that column.

install: ["scratch:zk=@"] system "gift-cluster", cardinality: 2 do server "gifts", base: "

I manage my mysql dbases using phpmyadmin. I have added indexes (indices?)

What you probably want to look up in MySQL documentation is "

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