MYSQL array aggregate function like PostgreSQL array_agg
<p>I got two tables on MYSQL, I wonder if there is any aggregate function on MYSQL as array_agg() FROM postgreSQL.</p>

<p>TABLE 1 properties Only have 8 records
TABLE 2 records who captured the property, so sometimes can be 1 or n times for the same property, and I got this Qry:</p>

<pre><code>SELECT p.id, pcb.users_admin_id as uid
FROM properties p
INNER JOIN prop_captured_by pcb ON p.id = pcb.property_id
-- GROUP BY p.id

id    uid
200   1
200   80
202   1
202   80
211   1
211   10
211   81
215   10 ...
</code></pre>

<p>If I use the GROUP BY part I get this:</p>

<pre><code>id    uid
200   1
202   1
211   1
215   10 ...
</code></pre>

<p>Losing any other data than the first value for users_admin_id. I know that I can achieve my desired result with array_agg() function from postgreSQL but I can't figured out how to do it on MYSQL.</p>

<p>This is my desire Result:</p>

<pre><code>id    uid
200   1,80 //an array, I don't mind about the separator, could be anything.
202   1,80
211   1,10,81
215   10 ...
</code></pre>

<p>I have tried UNION, GROUP BY, INNER JOIN... no luck...
Any pointers?</p>

<p><strong>UPDATE</strong></p>

<p>I am using the <a href="http://www.tonymarston.net/php-mysql/many-to-many.html" rel="noreferrer">many to many relations</a> from this guy. Hopes it is useful for someone else. I needed to add the user's name from a third table, so the final query looks like this:</p>

<pre><code>SELECT p.id, group_concat(pcb.users_admin_id) as uid, group_concat(ua.name) as uin
FROM properties p
INNER JOIN prop_captured_by pcb ON p.id = pcb.property_id
INNER JOIN users_admin ua ON ua.id = pcb.users_admin_id
group by p.id;
</code></pre>