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Rawley
2024-01-03 19:32:39 -06:00
parent eaaf1cf431
commit 4204132308
2 changed files with 61 additions and 2 deletions
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jpa-hibernate-stupid-performance.html
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@@ -50,8 +50,8 @@ public interface ARepository extends JpaRepository<A, UUID>, JpaSpecificationExe
</pre>
<p>
After applying these, the query time went down from 15 minutes to ... *drum-roll* ... 3 seconds. So please, for the love of all that is computationally efficient, force your JPA
to use <pre><code>OUTER JOIN</code></pre>, or even roll your own SQL, ORM's really are one of the biggest trade-offs, and they really can bite you. This is why tend to
stay in the <pre><code>DBI</code></pre> universe when I write Perl. It's funny shocking Ruby on Rails and Java developers with my ~15ms queries :D
to use <code>OUTER JOIN</code>, or even roll your own SQL, ORM's really are one of the biggest trade-offs, and they really can bite you. This is why tend to
stay in the <code>DBI</code> universe when I write Perl. It's funny shocking Ruby on Rails and Java developers with my ~15ms queries :D
</p>
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