--- a/flys-backend/src/main/java/de/intevation/flys/importer/WstParser.java	Fri May 20 09:30:08 2011 +0000
+++ b/flys-backend/src/main/java/de/intevation/flys/importer/WstParser.java	Mon May 23 15:01:58 2011 +0000
@@ -44,8 +44,13 @@
     public static final Pattern UNIT =
         Pattern.compile("[^\\[]*\\[([^]]+)\\].*");
 
+    public static final BigDecimal INTERVAL_GAP =
+        new BigDecimal(0.00001);
+
     protected ImportWst wst;
 
+    protected ImportRange lastRange;
+
     public WstParser() {
     }
 
@@ -339,11 +344,31 @@
 
         ImportRange range = new ImportRange(from, to);
 
+        // little workaround to make the q ranges tightly fit.
+        // Leave a very small gap to ensure that the range queries
+        // still work.
+
+        if (lastRange != null) {
+            double d1 = Math.abs(
+                lastRange.getB().doubleValue() - range.getA().doubleValue());
+            double d2 = Math.abs(
+                range.getB().doubleValue() - lastRange.getA().doubleValue());
+
+            if (d1 < d2) {
+                lastRange.setB(range.getA().subtract(INTERVAL_GAP));
+            }
+            else {
+                range.setA(lastRange.getB().subtract(INTERVAL_GAP));
+            }
+        }
+
         for (int i = 0; i < values.length; ++i) {
             ImportWstColumn column = wst.getColumn(i);
             ImportWstQRange wstQRange = new ImportWstQRange(range, values[i]);
             column.addColumnQRange(wstQRange);
         }
+
+        lastRange = range;
     }
 
     private static final BigDecimal [] parseLineAsDouble(