diff --git a/source/de/anomic/crawler/ZURL.java b/source/de/anomic/crawler/ZURL.java
index 3766aef94..6576144d7 100755
--- a/source/de/anomic/crawler/ZURL.java
+++ b/source/de/anomic/crawler/ZURL.java
@@ -253,7 +253,7 @@ public class ZURL implements Iterable<ZURL.Entry> {
             this.workcount = (int) entry.getColLong(3);
             this.anycause = entry.getColString(4, "UTF-8");
             this.bentry = new Request(Request.rowdef.newEntry(entry.getColBytes(5, false)));
-            assert (Base64Order.enhancedCoder.equal(entry.getColBytes(0, false), bentry.url().hash()));
+            assert (Base64Order.enhancedCoder.equal(entry.getPrimaryKeyBytes(), bentry.url().hash()));
             this.stored = true;
             return;
         }
diff --git a/source/de/anomic/crawler/retrieval/Request.java b/source/de/anomic/crawler/retrieval/Request.java
index cfb26d77a..1bded5807 100755
--- a/source/de/anomic/crawler/retrieval/Request.java
+++ b/source/de/anomic/crawler/retrieval/Request.java
@@ -140,7 +140,7 @@ public class Request extends WorkflowJob {
         if (urlstring == null) throw new IOException ("url string is null");
         this.initiator = entry.getColBytes(1, true);
         this.initiator = (initiator == null) ? null : ((initiator.length == 0) ? null : initiator);
-        this.url = new DigestURI(urlstring, entry.getColBytes(0, true));
+        this.url = new DigestURI(urlstring, entry.getPrimaryKeyBytes());
         this.refhash = (entry.empty(3)) ? null : entry.getColBytes(3, true);
         this.name = (entry.empty(4)) ? "" : entry.getColString(4, "UTF-8").trim();
         this.appdate = entry.getColLong(5);
diff --git a/source/net/yacy/dbtest.java b/source/net/yacy/dbtest.java
index 03318f6fb..792713c2a 100644
--- a/source/net/yacy/dbtest.java
+++ b/source/net/yacy/dbtest.java
@@ -166,7 +166,7 @@ public class dbtest {
             try {
                 Row.Entry entryBytes = getTable_test().get(entry.getKey());
                 if (entryBytes != null) {
-                    final STEntry dbEntry = new STEntry(entryBytes.getColBytes(0, true), entryBytes.getColBytes(1, true));
+                    final STEntry dbEntry = new STEntry(entryBytes.getPrimaryKeyBytes(), entryBytes.getColBytes(1, true));
                     if (!dbEntry.isValid()) {
                         System.out.println("INVALID table_test: " + dbEntry);
                     } /* else {
@@ -177,7 +177,7 @@ public class dbtest {
                 if (getTable_reference() != null) {
                 entryBytes = getTable_reference().get(entry.getKey());
                 if (entryBytes != null) {
-                    final STEntry dbEntry = new STEntry(entryBytes.getColBytes(0, true), entryBytes.getColBytes(1, true));
+                    final STEntry dbEntry = new STEntry(entryBytes.getPrimaryKeyBytes(), entryBytes.getColBytes(1, true));
                     if (!dbEntry.isValid()) {
                         System.out.println("INVALID table_reference: " + dbEntry);
                     } /* else {
diff --git a/source/net/yacy/kelondro/index/HandleSet.java b/source/net/yacy/kelondro/index/HandleSet.java
index 5e75d967b..54eafc230 100644
--- a/source/net/yacy/kelondro/index/HandleSet.java
+++ b/source/net/yacy/kelondro/index/HandleSet.java
@@ -184,7 +184,7 @@ public final class HandleSet implements Iterable<byte[]>, Cloneable {
         Row.Entry indexentry;
         indexentry = index.removeOne();
         if (indexentry == null) return null;
-        return indexentry.getColBytes(0, true);
+        return indexentry.getPrimaryKeyBytes();
     }
     
     /**
@@ -198,7 +198,7 @@ public final class HandleSet implements Iterable<byte[]>, Cloneable {
         Row.Entry indexentry;
         indexentry = index.get(this.size() - 1 - idx, true);
         if (indexentry == null) return null;
-        return indexentry.getColBytes(0, true);
+        return indexentry.getPrimaryKeyBytes();
     }
     
     public final synchronized boolean isEmpty() {
diff --git a/source/net/yacy/kelondro/index/Row.java b/source/net/yacy/kelondro/index/Row.java
index d8ed5fa23..f8bcb8ee1 100644
--- a/source/net/yacy/kelondro/index/Row.java
+++ b/source/net/yacy/kelondro/index/Row.java
@@ -160,7 +160,7 @@ public final class Row {
     public final Entry newEntry(final Entry oldrow, final int fromColumn) {
         if (oldrow == null) return null;
         assert (oldrow.getColBytes(0, false)[0] != 0);
-        assert (this.objectOrder.wellformed(oldrow.getColBytes(0, false), 0, this.primaryKeyLength));
+        assert (this.objectOrder.wellformed(oldrow.getPrimaryKeyBytes(), 0, this.primaryKeyLength));
         return new Entry(oldrow, fromColumn, false);
     }
     
diff --git a/source/net/yacy/kelondro/index/RowCollection.java b/source/net/yacy/kelondro/index/RowCollection.java
index ce358f378..57bedf165 100644
--- a/source/net/yacy/kelondro/index/RowCollection.java
+++ b/source/net/yacy/kelondro/index/RowCollection.java
@@ -1008,9 +1008,9 @@ public class RowCollection implements Iterable<Row.Entry>, Cloneable {
         if (chunkcount != this.sortBound) return false;
         /*
         for (int i = 0; i < chunkcount - 1; i++) {
-        	//System.out.println("*" + new String(get(i).getColBytes(0)));
+        	//System.out.println("*" + new String(get(i).getPrimaryKeyBytes()));
         	if (compare(i, i + 1) > 0) {
-        		System.out.println("?" + new String(get(i + 1, false).getColBytes(0)));
+        		System.out.println("?" + new String(get(i + 1, false).getPrimaryKeyBytes()));
         		return false;
         	}
         }
@@ -1133,7 +1133,7 @@ public class RowCollection implements Iterable<Row.Entry>, Cloneable {
     	System.out.println("create c   : " + (t1 - t0) + " nanoseconds, " + d(testsize, (t1 - t0)) + " entries/nanoseconds");
     	final RowCollection d = new RowCollection(r, testsize);
     	for (int i = 0; i < testsize; i++) {
-    		d.add(c.get(i, false).getColBytes(0, false));
+    		d.add(c.get(i, false).getPrimaryKeyBytes());
     	}
     	final long t2 = System.nanoTime();
     	System.out.println("copy c -> d: " + (t2 - t1) + " nanoseconds, " + d(testsize, (t2 - t1)) + " entries/nanoseconds");
diff --git a/source/net/yacy/kelondro/index/RowSet.java b/source/net/yacy/kelondro/index/RowSet.java
index 58a119745..9fced6c88 100644
--- a/source/net/yacy/kelondro/index/RowSet.java
+++ b/source/net/yacy/kelondro/index/RowSet.java
@@ -544,7 +544,7 @@ public class RowSet extends RowCollection implements Index, Iterable<Row.Entry>
         Row.Entry entry;
         while (ii.hasNext()) {
             entry = ii.next();
-            s = new String(entry.getColBytes(0, true)).trim();
+            s = new String(entry.getPrimaryKeyBytes()).trim();
             System.out.print(s + ", ");
             if (s.equals("drei")) ii.remove();
         }
diff --git a/source/net/yacy/kelondro/table/SQLTable.java b/source/net/yacy/kelondro/table/SQLTable.java
index f31626953..bdd2a2be8 100644
--- a/source/net/yacy/kelondro/table/SQLTable.java
+++ b/source/net/yacy/kelondro/table/SQLTable.java
@@ -196,7 +196,7 @@ public class SQLTable implements Index, Iterable<Row.Entry> {
 
     public Row.Entry replace(final Row.Entry row) throws IOException {
         try {
-            final Row.Entry oldEntry = remove(row.getColBytes(0, false));
+            final Row.Entry oldEntry = remove(row.getPrimaryKeyBytes());
             final String sqlQuery = "INSERT INTO test (" +
                     "hash, " +
                     "value) " +
diff --git a/source/net/yacy/kelondro/table/SplitTable.java b/source/net/yacy/kelondro/table/SplitTable.java
index 67e5bbf06..fa1259e0e 100644
--- a/source/net/yacy/kelondro/table/SplitTable.java
+++ b/source/net/yacy/kelondro/table/SplitTable.java
@@ -344,7 +344,7 @@ public class SplitTable implements Index, Iterable<Row.Entry> {
     
     public Row.Entry replace(final Row.Entry row) throws IOException, RowSpaceExceededException {
         assert row.objectsize() <= this.rowdef.objectsize;
-        Index keeper = keeperOf(row.getColBytes(0, true));
+        Index keeper = keeperOf(row.getPrimaryKeyBytes());
         if (keeper != null) return keeper.replace(row);
         synchronized (this.tables) {
             assert this.current == null || this.tables.get(this.current) != null : "this.current = " + this.current;
@@ -363,8 +363,9 @@ public class SplitTable implements Index, Iterable<Row.Entry> {
      */
     public boolean put(final Row.Entry row) throws IOException, RowSpaceExceededException {
         assert row.objectsize() <= this.rowdef.objectsize;
+        byte[] key = row.getPrimaryKeyBytes();
         synchronized (this.tables) {
-            Index keeper = keeperOf(row.getColBytes(0, true));
+            Index keeper = keeperOf(key);
             if (keeper != null) return keeper.put(row);
             assert this.current == null || this.tables.get(this.current) != null : "this.current = " + this.current;
             keeper = (this.current == null) ? newTable() : checkTable(this.tables.get(this.current));
diff --git a/source/net/yacy/kelondro/util/FileUtils.java b/source/net/yacy/kelondro/util/FileUtils.java
index 64eb38f37..ddaf09781 100644
--- a/source/net/yacy/kelondro/util/FileUtils.java
+++ b/source/net/yacy/kelondro/util/FileUtils.java
@@ -487,11 +487,11 @@ public final class FileUtils {
             final Iterator<Row.Entry> i = set.iterator();
             String key;
             if (i.hasNext()) {
-                key = new String(i.next().getColBytes(0, false));
+                key = new String(i.next().getPrimaryKeyBytes());
                 os.write(key.getBytes("UTF-8"));
             }
             while (i.hasNext()) {
-                key = new String(i.next().getColBytes(0, false));
+                key = new String(i.next().getPrimaryKeyBytes());
                 if (sep != null) os.write(sep.getBytes("UTF-8"));
                 os.write(key.getBytes("UTF-8"));
             }