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denormalized fields on statuses for faster queries

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Athou
2013-07-14 05:48:47 +02:00
parent ca9c10a1d3
commit 24ee418f3f
6 changed files with 123 additions and 77 deletions
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32
src/main/resources/changelogs/db.changelog-1.1.xml
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@@ -279,5 +279,37 @@
<column name="user_id"></column>
</createIndex>
</changeSet>
<changeSet author="athou" id="denormalize-statuses">
<addColumn tableName="FEEDENTRYSTATUSES">
<column name="user_id" type="BIGINT">
<constraints nullable="false" />
</column>
<column name="entryInserted" type="DATETIME" />
<column name="entryUpdated" type="DATETIME" />
</addColumn>
</changeSet>
<changeSet author="athou" id="populate-status-dates">
<sql>update FEEDENTRYSTATUSES s SET s.entryUpdated = (select e.updated from FEEDENTRIES e where e.id = s.entry_id)</sql>
</changeSet>
<changeSet author="athou" id="populate-status-users">
<sql>update FEEDENTRYSTATUSES s SET s.user_id = (select sub.user_id from FEEDSUBSCRIPTIONS sub where sub.id = s.subscription_id)</sql>
</changeSet>
<changeSet author="athou" id="recreate-fes-index-2">
<createIndex indexName="sub_user_entry_read_updated_index" tableName="FEEDENTRYSTATUSES">
<column name="subscription_id" />
<column name="user_id" />
<column name="entry_id" />
<column name="read_status" />
<column name="entryUpdated" />
</createIndex>
</changeSet>
<changeSet author="athou" id="drop-fes-index-2">
<dropIndex tableName="FEEDENTRYSTATUSES" indexName="sub_entry_read_index" />
</changeSet>
</databaseChangeLog>