Question

SELECT sysobjects.xtype, syscolumns.name, sysindexkeys.indid, sysobjects.type FROM     syscolumns LEFT JOIN sysobjects ON syscolumns.id = sysobjects.id LEFT JOIN sysindexkeys ON (      syscolumns.id = sysindexkeys.id AND syscolumns.colid = sysindexkeys.colid ) WHERE sysobjects.name = '{$table}' AND sysindexkeys.indid IS NOT NULL ORDER BY sysindexkeys.indid, sysindexkeys.keyno 

I’m actually using the following query in order to retreive the column name and the keyno.

The problem is my table has 3 fields:

user_id config_name config_value 

With a primary key on user_id AND config_name.

I would expect to get the collection:

[   ['name' => 'user_id', 'keyno' => 1],   ['name' => 'config_name', 'keyno' => 1] ] 

But i get :

[   ['name' => 'user_id', 'keyno' => 1],   ['name' => 'config_name', 'keyno' => 2] ] 

What am I doing wrong?

edit: I get the same weirdos results using a two index table

table: project_image_id project_id project_image_src

PK on project_image_id AND unique index on project_id AND project_image_src

Expected:

[   ['name' => 'project_image_id', 'keyno' => 1],   ['name' => 'project_id', 'keyno' => 2]   ['name' => 'project_image_src', 'keyno' => 2] ] 

But i get :

[   ['name' => 'project_image_id', 'keyno' => 1],   ['name' => 'project_id', 'keyno' => 1]   ['name' => 'project_image_src', 'keyno' => 2] ] 

Answer 1

That seems correct to me, your index has 2 columns, user_id has position 1 and config_name has position 2

From BOL keyno: Position of the column in the index

why do you think they would both be 1?

Here you go, you needed to join back to the sysobject table but on the index not the table itself

SELECT s2.xtype, syscolumns.name, sysindexkeys.indid, sysobjects.type FROM     syscolumns LEFT JOIN sysobjects ON syscolumns.id = sysobjects.id LEFT JOIN sysindexkeys ON (      syscolumns.id = sysindexkeys.id AND syscolumns.colid = sysindexkeys.colid ) join sysobjects s2 on s2.parent_obj = sysindexkeys.id WHERE sysobjects.name = '{$table}' and s2.type = 'K' AND sysindexkeys.indid IS NOT NULL ORDER BY sysindexkeys.indid, sysindexkeys.keyno