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ERROR 1490 (HY000): A UNIQUE INDEX need to include all fields in the partition f

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bostam
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« on: September 19, 2006, 11:04:18 »
Is anyone using mysql 5.1 with partitions ? I get this error and I dont know what it is ...

ERROR 1490 (HY000): A UNIQUE INDEX need to include all fields in the partition function


Pls Help ... I'm desperate ...
Thanks for any help ...
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TheGodFather
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« Reply #1 on: September 19, 2006, 12:29:29 »
Where are you using partitions ? ... what version of mysql do you use  (5.1.x ).

Probably you have 1 uniq keys + primary key (minimum) and probably you are doing a key partitions?

I'm right ?

Tell me more about your primary key and uniq key and I will help you ...

Regards
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bostam
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« Reply #2 on: September 20, 2006, 01:59:33 »
Thanks for your answer ...

Yes I have A primary key on id and a unique key per address ...

How can I solve the error ?

My database contain a lot of data and is used on data mining on company where I work !
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TheGodFather
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« Reply #3 on: September 20, 2006, 13:24:01 »
Hi,

For example if you have :

Primary Key (id),
Unique key (x) Parttitions by key (id) partitions x will not work

because you need to alter your table in this way:

Primary Key (id),
Unique key (x,id) Parttitions by key (id) partitions x

Read Mysql docs. You need to have all unque keys grupped.

Regards
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bostam
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« Reply #4 on: September 21, 2006, 01:31:38 »
Thanks ... I didn't have time to read the docs ... but I will do my tests tomorow Smiley
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TheGodFather
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« Reply #5 on: September 26, 2006, 16:20:01 »
Did you do more tests ?

Regards
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bostam
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« Reply #6 on: September 27, 2006, 02:54:59 »
Yes ... And is working ... Thanks for help. Anyway I start with partitions by key and now I run partitions by range.
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