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<td class="page-title-pattern-first-line " style="padding: 0px; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://hibernate.atlassian.net/browse/HSEARCH" style="color: #3b73af; text-decoration: none">Hibernate Search</a> / <a href="https://hibernate.atlassian.net/browse/HSEARCH-1701" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-static-bug-527212cf-b7f0-4267-9f04-be8e595a8c43" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom" /></a> <a href="https://hibernate.atlassian.net/browse/HSEARCH-1701" style="color: #3b73af; text-decoration: none">HSEARCH-1701</a>
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<td style="vertical-align: top;; padding: 0px; border-collapse: collapse; padding-right: 5px; font-size: 20px; line-height: 30px; mso-line-height-rule: exactly" class="page-title-pattern-header-container"> <span class="page-title-pattern-header" style="font-family: Arial, sans-serif; padding: 0; font-size: 20px; line-height: 30px; mso-text-raise: 2px; mso-line-height-rule: exactly; vertical-align: middle"> <a href="https://hibernate.atlassian.net/browse/HSEARCH-1701" style="color: #3b73af; text-decoration: none">Query pulling back unnecessary objects when embedded object gets updated and resulting in performance issue</a> </span>
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Issue Type:
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<td class="has-icon" style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <img src="cid:jira-generated-image-static-bug-527212cf-b7f0-4267-9f04-be8e595a8c43" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom" /> Bug
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Affects Versions:
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4.4.4.Final
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Assignee:
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Unassigned
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Attachments:
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jira post.txt
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Components:
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backend, mapping
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Created:
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27/Oct/2014 11:41 AM
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Environment:
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4.4.4.Final, Mysql
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Labels:
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hibernate performance
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Priority:
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Reporter:
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<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="ylang" id="email_ylang" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=ylang" style="color:#6c797f;; color: #3b73af; text-decoration: none">ylang</a>
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Original Estimate:
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12h
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Remaining Estimate:
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12h
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">We have been having serious performance issues caused by updating fields in an embedded object. Specifically, we are using a class structure where "Account" is embedded in "User" is embedded in "Lesson", both of these associations being marked with the "@IndexedEmbedded(includePaths {**********})" notation on the owner side, with "@ContainedIn" marking the owned side. Paths specified are only one level deep and do not point to the described associations. When trying to update a field in "Account", Hibernate Search is making inefficient and unnecessary database queries:</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">1. Pulling back unnecessary objects<br /> When updating an account, Hibernate Search tries to pull back both Users and Lessons, even though no change occurs in any fields accessible by Lesson(example Query 1 in attachments).</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">2. Inefficient Query <br /> Hibernate Search gets user from account and then gets account from user (Query 2 in attachments).</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">We have tried several permutations of "includePaths" and "depth =" specifications, none of which have solved the issue.</p>
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