[hibernate-issues] [Hibernate-JIRA] Resolved: (HHH-7066) Improve memory allocation on String extraction out of Clob fields

Improve memory allocation on String extraction out of Clob fields ----------------------------------------------------------------- Key: HHH-7066 URL: https://hibernate.onjira.com/browse/HHH-7066 Project: Hibernate ORM Issue Type: Improvement Reporter: Sanne Grinovero Assignee: Sanne Grinovero Fix For: 4.1.1 Attachments: Overhead of DataHelper String extraction from Clob.png Extracting a large String out of a Clob makes use of the org.hibernate.type.descriptor.java.DataHelper, which allocats StringBuilder to create the extracted String instances. Adjusting the initial size of the StringBuilder according to expected / known data size can have a good performace impact, as shown in the attached screenshot from a profiler session.