<style>
/* Changing the layout to use less space for mobiles */
@media screen and (max-device-width: 480px), screen and (-webkit-min-device-pixel-ratio: 2) {
#email-body { min-width: 30em !important; }
#email-page { padding: 8px !important; }
#email-banner { padding: 8px 8px 0 8px !important; }
#email-avatar { margin: 1px 8px 8px 0 !important; padding: 0 !important; }
#email-fields { padding: 0 8px 8px 8px !important; }
#email-gutter { width: 0 !important; }
}
</style>
<div id="email-body">
<table id="email-wrap" align="center" border="0" cellpadding="0" cellspacing="0" style="background-color:#f0f0f0;color:#000000;width:100%;">
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<td bgcolor="#3e4c4e" style="background-color:#3e4c4e;color:#ffffff;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;line-height:1;"><img src="https://www.jboss.org/dms/hibernate/images/jira/jiraheader_hibernate.png" alt="" style="vertical-align:top;" /></td>
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<img id="email-avatar" src="https://hibernate.onjira.com/secure/useravatar?avatarId=10162" alt="" height="48" width="48" border="0" align="left" style="padding:0;margin: 0 16px 16px 0;" />
<div id="email-action" style="padding: 0 0 8px 0;font-size:12px;line-height:18px;">
<a class="user-hover" rel="netangel" id="email_netangel" href="https://hibernate.onjira.com/secure/ViewProfile.jspa?name=netangel" style="color:#6c797f;">Anthony Ogier</a>
created <img src="https://hibernate.onjira.com/images/icons/bug.gif" height="16" width="16" border="0" align="absmiddle" alt="Bug"> <a style='color:#6c797f;text-decoration:none;' href='https://hibernate.onjira.com/browse/HHH-7752'>HHH-7752</a>
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<div id="email-summary" style="font-size:16px;line-height:20px;padding:2px 0 16px 0;">
<a style='color:#6c797f;text-decoration:none;' href='https://hibernate.onjira.com/browse/HHH-7752'><strong>SQLServer2008Dialect doesn't support @Formula field containing subselects</strong></a>
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<td id="email-gutter" style="width:64px;white-space:nowrap;"></td>
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<strong style="font-weight:normal;color:#505050;">Issue Type:</strong>
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<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
<img src="https://hibernate.onjira.com/images/icons/bug.gif" height="16" width="16" border="0" align="absmiddle" alt="Bug"> Bug
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<strong style="font-weight:normal;color:#505050;">Affects Versions:</strong>
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<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
4.0.1 </td>
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<strong style="font-weight:normal;color:#505050;">Assignee:</strong>
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<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
Unassigned </td>
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<strong style="font-weight:normal;color:#505050;">Components:</strong>
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<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
core </td>
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<strong style="font-weight:normal;color:#505050;">Created:</strong>
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<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
04/Nov/12 4:49 PM
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<strong style="font-weight:normal;color:#505050;">Description:</strong>
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<p style='margin-top:0;margin-bottom:10px;'>Here is my entity :</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<pre class="code-java">@Entity
@Table(name = <span class="code-quote">"FOLDER"</span>)
<span class="code-keyword">public</span> class Folder {
@Id
@Column(name = <span class="code-quote">"ID"</span>)
@GeneratedValue(strategy=GenerationType.IDENTITY)
<span class="code-keyword">private</span> <span class="code-object">Integer</span> id;
@Formula(<span class="code-quote">"(select <span class="code-keyword">case</span> when c.TYPE = 'M' then isnull(c.FIRSTNAME + ' ', '') + c.LASTNAME end"</span> +
<span class="code-quote">" from CONTACT c where c.ID_FOLDER = ID"</span>)
<span class="code-keyword">private</span> <span class="code-object">String</span> masterContact
<span class="code-comment">// getters / setters
</span>}</pre>
</div></div>
<p style='margin-top:0;margin-bottom:10px;'>Using SQLServer2008Dialect, if I want that EJBQL query executed : "select count(distinct folder) from Folder folder", the generated query is :</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<pre class="code-java">WITH query AS (select
count(folder0_.id) as col_0_0_,
ROW_NUMBER() OVER (
ORDER BY
CURRENT_TIMESTAMP) as __hibernate_row_nr__
from
folder folder0_
group by
count(folder0_.id)) SELECT
*
FROM
query
WHERE
__hibernate_row_nr__ >= ?
AND __hibernate_row_nr__ < ?</pre>
</div></div>
<p style='margin-top:0;margin-bottom:10px;'>which will throw the SQLServerException #144 "Cannot use an aggregate or a subquery in an expression used for the group by list of a GROUP BY clause".</p>
<p style='margin-top:0;margin-bottom:10px;'>So I applied the patched proposed by <a href="https://hibernate.onjira.com/browse/HHH-6627" title="SQLServer2008Dialect Bad Query">HHH-6627</a>.</p>
<p style='margin-top:0;margin-bottom:10px;'>It then generates the good count method.</p>
<p style='margin-top:0;margin-bottom:10px;'>I now wanted to execute the following EJBQL query : "select folder from Folder folder order by folder.id" and here is the SQL query generated :</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<pre class="code-java">WITH query AS (select
folder0_.id as id1_62_,
(select
<span class="code-keyword">case</span>
when c.TYPE = 'M' then isnull(c.FIRSTNAME + ' ', '') + c.LASTNAME
end,
ROW_NUMBER() OVER (
order by
folder0_.id asc) as __hibernate_row_nr__
from
contact c
where
c.id_folder = folder0_.id) as formula0_
from
folder folder0_ ) SELECT
*
FROM
query
WHERE
__hibernate_row_nr__ >= ?
AND __hibernate_row_nr__ < ?</pre>
</div></div>
<p style='margin-top:0;margin-bottom:10px;'>Which will throw the SQLServerException #116 "Only one expression can be specified in the select list when the subquery is not introduced with EXISTS."</p>
<p style='margin-top:0;margin-bottom:10px;'>So I implemented myself the "insertRowNumberFunction" by replacing the <tt>sql.indexOf( FROM );</tt> with <tt>sql.lastIndexOf( FROM );</tt>.</p>
<p style='margin-top:0;margin-bottom:10px;'>Now the SQL generated query was :</p>
<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<pre class="code-java">WITH query AS (select
folder0_.id as id1_62_,
(select
<span class="code-keyword">case</span>
when c.TYPE = 'M' then isnull(c.FIRSTNAME + ' ', '') + c.LASTNAME
end
from
contact c
where
c.id_folder = folder0_.id) as formula0_,
ROW_NUMBER() OVER (
order by
folder0_.id asc) as __hibernate_row_nr__
from
folder folder0_ ) SELECT
*
FROM
query
WHERE
__hibernate_row_nr__ >= ?
AND __hibernate_row_nr__ < ?</pre>
</div></div>
<p style='margin-top:0;margin-bottom:10px;'>But the results are not necessarily ordered by folder.id ...</p>
<p style='margin-top:0;margin-bottom:10px;'>I'm on SQLServer 2008 R2.</p>
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<strong style="font-weight:normal;color:#505050;">Project:</strong>
</td>
<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
<a style="color:#6c797f;" href="https://hibernate.onjira.com/browse/HHH">Hibernate ORM</a>
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<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 10px 10px 0;white-space:nowrap;">
<strong style="font-weight:normal;color:#505050;">Priority:</strong>
</td>
<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
<img src="https://hibernate.onjira.com/images/icons/priority_blocker.gif" height="16" width="16" border="0" align="absmiddle" alt="Blocker"> Blocker
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<strong style="font-weight:normal;color:#505050;">Reporter:</strong>
</td>
<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
<a class="user-hover" rel="netangel" id="email_netangel" href="https://hibernate.onjira.com/secure/ViewProfile.jspa?name=netangel" style="color:#6c797f;">Anthony Ogier</a>
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