Issue 527: Oracle compatibility mode: incorrect scale behavior, patch by Daniel Gredler.

h2/src/docsrc/html/changelog.html

@@ -40,6 +40,7 @@ Change Log
 </li><li>Added support for ON DUPLICATE KEY UPDATE like MySQL with the values() function to update with the value that
     was to be inserted. Patch from Jean-Francois Noel.
 </li><li>Issue 522: Treat empty strings like NULL in Oracle compatibility mode, patch by Daniel Gredler.
+</li><li>Issue 527: Oracle compatibility mode: incorrect scale behavior, patch by Daniel Gredler.
 </li></ul>
 
 <h2>Version 1.3.174 (2013-10-19)</h2>

h2/src/main/org/h2/engine/Mode.java

@@ -185,6 +185,7 @@ public class Mode {
 
         mode = new Mode("Oracle");
         mode.aliasColumnName = true;
+        mode.convertOnlyToSmallerScale = true;
         mode.uniqueIndexSingleNullExceptAllColumnsAreNull = true;
         mode.treatEmptyStringsAsNull = true;
         add(mode);

h2/src/test/org/h2/test/db/TestCompatibilityOracle.java

@@ -33,6 +33,7 @@ public class TestCompatibilityOracle extends TestBase {
     @Override
     public void test() throws Exception {
         testTreatEmptyStringsAsNull();
+        testDecimalScale();
     }
 
     private void testTreatEmptyStringsAsNull() throws SQLException {
@@ -87,6 +88,21 @@ public class TestCompatibilityOracle extends TestBase {
         conn.close();
     }
 
+    private void testDecimalScale() throws SQLException {
+        deleteDb("oracle");
+        Connection conn = getConnection("oracle;MODE=Oracle");
+        Statement stat = conn.createStatement();
+
+        stat.execute("CREATE TABLE A (ID NUMBER, X DECIMAL(9,5))");
+        stat.execute("INSERT INTO A VALUES (1, 2)");
+        stat.execute("INSERT INTO A VALUES (2, 4.3)");
+        stat.execute("INSERT INTO A VALUES (3, '6.78')");
+        assertResult("3", stat, "SELECT COUNT(*) FROM A");
+        assertResult(new Object[][] { { 1, 2 }, { 2, 4.3 }, { 3, 6.78 } }, stat, "SELECT * FROM A");
+
+        conn.close();
+    }
+
     private void assertResult(Object[][] expectedRowsOfValues, Statement stat, String sql) throws SQLException {
         assertResult(newSimpleResultSet(expectedRowsOfValues), stat, sql);
     }
@@ -117,10 +133,10 @@ public class TestCompatibilityOracle extends TestBase {
             return null;
         }
         if (object instanceof Object[]) {
-            return Arrays.deepToString(((Object[]) object));
+            return Arrays.deepToString((Object[]) object);
         }
         if (object instanceof byte[]) {
-            return Arrays.toString(((byte[]) object));
+            return Arrays.toString((byte[]) object);
         }
         return object.toString();
     }

h2/src/tools/org/h2/build/doc/dictionary.txt

@@ -743,4 +743,4 @@ lives pauses allocates kicks introduction straightforward getenv
 ordinate tweaking fetching rfe yates cookie btrfs cookies
 nocycle nomaxvalue nominvalue cycling proceed prospective exhausted contingent
 validities hang degenerates freezes emulation gredler cemo koc blanked
-reverting gredler blanked koc cemo jump
+reverting blanked jump
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