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h2/src/docsrc/html/changelog.html

@@ -18,7 +18,10 @@ Change Log
 <h1>Change Log</h1>
 
 <h2>Next Version (unreleased)</h2>
-<ul><li>The database supports the SHOW command for better MySQL and PostgreSQL compatibility.
+<ul><li>LINKED TABLE: worked around a bug in Oracle with the CHAR data type.
+</li><li>Faster hash code calculation for large binary arrays.
+</li><li>Faster storage re-use algorithm thanks to Greg Dhuse from cleversafe.com.
+</li><li>The database supports the SHOW command for better MySQL and PostgreSQL compatibility.
 </li><li>The H2 Console now abbreviates large texts in results.
 </li><li>Multiple UNION queries could not be used in derived tables. 
 </li><li>Linked tables can now be read-only.

h2/src/main/org/h2/engine/Session.java

@@ -507,12 +507,14 @@ public class Session implements SessionInterface {
                 throw Message.getInternalError();
             }
         }
-        synchronized (database) {
-            for (int i = 0; i < locks.size(); i++) {
-                Table t = (Table) locks.get(i);
-                t.unlock(this);
+        if (locks.size() > 0) {
+            synchronized (database) {
+                for (int i = 0; i < locks.size(); i++) {
+                    Table t = (Table) locks.get(i);
+                    t.unlock(this);
+                }
+                locks.clear();
             }
-            locks.clear();
         }
         savepoints = null;
     }