Clearer method names.

h2/src/main/org/h2/value/Value.java

@@ -429,7 +429,7 @@ public abstract class Value {
     }
 
     public Reader getReader() {
-        return IOUtils.getReader(getString());
+        return IOUtils.getReaderFromString(getString());
     }
 
     /**
@@ -914,12 +914,23 @@ public abstract class Value {
      *
      * @param precision the new precision
      * @return the new value
-     * @throws SQLException
      */
     public Value convertPrecision(long precision) {
         return this;
     }
 
+    /**
+     * Trim the value to the requested precision.
+     * Unlike convertPrecision, this will always work
+     * (possibly losing precision).
+     *
+     * @param precision the maximum precision
+     * @return the new value
+     */
+    public Value trim(long precision) {
+        return convertPrecision(precision);
+    }
+
     private static byte convertToByte(long x) {
         if (x > Byte.MAX_VALUE || x < Byte.MIN_VALUE) {
             throw DbException.get(ErrorCode.NUMERIC_VALUE_OUT_OF_RANGE);