Multi-threaded processing: concurrent deleting the same row could throw the…

Multi-threaded processing: concurrent deleting the same row could throw the exception Row not found when trying to delete

h2/src/docsrc/html/changelog.html

@@ -21,6 +21,9 @@ Change Log
 
 <h2>Next Version (unreleased)</h2>
 <ul>
+<li>Multi-threaded processing: concurrent deleting the same row could throw the exception
+    "Row not found when trying to delete".
+</li>
 <li>MVStore transactions: a thread could see a change of a different thread
     within a different map. Pull request #153.
 </li>

h2/src/main/org/h2/command/Command.java

@@ -293,7 +293,9 @@ public abstract class Command implements CommandInterface {
     }
 
     private long filterConcurrentUpdate(DbException e, long start) {
-        if (e.getErrorCode() != ErrorCode.CONCURRENT_UPDATE_1) {
+        int errorCode = e.getErrorCode();
+        if (errorCode != ErrorCode.CONCURRENT_UPDATE_1 &&
+                errorCode != ErrorCode.ROW_NOT_FOUND_WHEN_DELETING_1) {
             throw e;
         }
         long now = System.nanoTime() / 1000000;

h2/src/main/org/h2/mvstore/db/MVSecondaryIndex.java

@@ -234,7 +234,6 @@ public class MVSecondaryIndex extends BaseIndex implements MVIndex {
         }
     }
 
-
     @Override
     public void remove(Session session, Row row) {
         ValueArray array = convertToKey(row);