The Recover tool did not work with compressed lob files.

h2/src/docsrc/html/changelog.html

@@ -18,7 +18,11 @@ Change Log
 <h1>Change Log</h1>
 
 <h2>Next Version (unreleased)</h2>
-<ul><li>H2 Console: webAllowOthers and webSSL were swapped if they didn't exist in the properties file. Issue 244.
+<ul><li>The Recover tool did not work with compressed lob files (set compress_lob lzf).
+    Also, sometimes the Recover tool was very slow, specially using a 64-bit JVM, because
+    it tried to de-compress lob files even if they were not compressed 
+    (which could allocate a lot of memory).
+</li><li>H2 Console: webAllowOthers and webSSL were swapped if they didn't exist in the properties file. Issue 244.
 </li><li>When the system property h2.lobInDatabase is set, CREATE TABLE ... AS SELECT
     with a LOB column did not always work.
 </li><li>Some system properties are not supported any longer, because they can 

h2/src/main/org/h2/tools/Recover.java

@@ -237,7 +237,6 @@ public class Recover extends Tool implements DataHandler {
             if (fileName.endsWith(Constants.SUFFIX_PAGE_FILE)) {
                 dumpPageStore(fileName);
             } else if (fileName.endsWith(Constants.SUFFIX_LOB_FILE)) {
-                dumpLob(fileName, true);
                 dumpLob(fileName, false);
             }
         }
@@ -319,10 +318,12 @@ public class Recover extends Tool implements DataHandler {
             byte[] small = lob.getSmall();
             if (small == null) {
                 String file = lob.getFileName();
-                if (lob.getType() == Value.BLOB) {
-                    return "READ_BLOB('" + file + ".txt')";
+                String type = lob.getType() == Value.BLOB ? "BLOB" : "CLOB";
+                if (lob.useCompression()) {
+                    dumpLob(file, true);
+                    file += ".comp";
                 }
-                return "READ_CLOB('" + file + ".txt')";
+                return "READ_" + type + "('" + file + ".txt')";
             }
         } else if (v instanceof ValueLobDb) {
             ValueLobDb lob = (ValueLobDb) v;

h2/src/test/org/h2/test/unit/TestRecovery.java

@@ -32,9 +32,42 @@ public class TestRecovery extends TestBase {
     }
 
     public void test() throws SQLException {
+        testCompressedAndUncompressed();
         testRunScript();
     }
 
+    private void testCompressedAndUncompressed() throws SQLException {
+        DeleteDbFiles.execute(getBaseDir(), "recovery", true);
+        org.h2.Driver.load();
+        Connection conn = getConnection("recovery");
+        Statement stat = conn.createStatement();
+        stat.execute("create table test(id int primary key, data clob)");
+        stat.execute("insert into test values(1, space(10000))");
+        stat.execute("set compress_lob lzf");
+        stat.execute("insert into test values(2, space(10000))");
+        conn.close();
+        Recover rec = new Recover();
+        rec.runTool("-dir", getBaseDir(), "-db", "recovery");
+        Connection conn2 = getConnection("recovery2", "diff", "");
+        Statement stat2 = conn2.createStatement();
+        String name = "recovery.h2.sql";
+        stat2.execute("runscript from '" + getBaseDir() + "/" + name + "'");
+        stat2.execute("select * from test");
+        stat2.execute("drop user diff");
+        conn2.close();
+
+        conn = getConnection("recovery");
+        stat = conn.createStatement();
+        conn2 = getConnection("recovery2");
+        stat2 = conn2.createStatement();
+
+        assertEqualDatabases(stat, stat2);
+        conn.close();
+        conn2.close();
+        DeleteDbFiles.execute(getBaseDir(), "recovery", true);
+        DeleteDbFiles.execute(getBaseDir(), "recovery2", true);
+    }
+
     private void testRunScript() throws SQLException {
         DeleteDbFiles.execute(getBaseDir(), "recovery", true);
         DeleteDbFiles.execute(getBaseDir(), "recovery2", true);
@@ -84,7 +117,6 @@ public class TestRecovery extends TestBase {
         IOUtils.delete(getBaseDir() + "/recovery.h2.sql");
         String dir = getBaseDir() + "/recovery.lobs.db";
         FileSystem.getInstance(dir).deleteRecursive(dir, false);
-
     }
 
 }