The following prepared statements are now cached as well: insert, update,…

The following prepared statements are now cached as well: insert, update, delete, merge, and transactional commands.

h2/src/main/org/h2/command/dml/Delete.java

@@ -146,4 +146,8 @@ public class Delete extends Prepared {
         this.limitExpr = limit;
     }
 
+    public boolean isCacheable() {
+        return true;
+    }
+
 }

h2/src/main/org/h2/command/dml/Insert.java

@@ -265,4 +265,8 @@ public class Insert extends Prepared implements ResultTarget {
         this.insertFromSelect = value;
     }
 
+    public boolean isCacheable() {
+        return true;
+    }
+
 }

h2/src/main/org/h2/command/dml/Merge.java

@@ -277,4 +277,8 @@ public class Merge extends Prepared {
         return CommandInterface.MERGE;
     }
 
+    public boolean isCacheable() {
+        return true;
+    }
+
 }

h2/src/main/org/h2/command/dml/TransactionCommand.java

@@ -136,4 +136,8 @@ public class TransactionCommand extends Prepared {
         return type;
     }
 
+    public boolean isCacheable() {
+        return true;
+    }
+
 }

h2/src/main/org/h2/command/dml/Update.java

@@ -185,4 +185,8 @@ public class Update extends Prepared {
         return CommandInterface.UPDATE;
     }
 
+    public boolean isCacheable() {
+        return true;
+    }
+
 }