SQL statements in the exception message are no longer included if they contain '--hide--'.

h2/src/docsrc/html/changelog.html

@@ -18,7 +18,8 @@ Change Log
 <h1>Change Log</h1>
 
 <h2>Next Version (unreleased)</h2>
-<ul><li>Temporary local tables did not always work after reconnect if AUTO_SERVER=TRUE
+<ul><li>SQL statements in the exception message are no longer included if they contain '--hide--'.
+</li><li>Temporary local tables did not always work after reconnect if AUTO_SERVER=TRUE
 </li><li>New system property h2.defaultMaxLengthInplaceLob to change the default maximum size
     of an in-place LOB object.
 </li><li>New system property h2.nullConcatIsNull to change the default null concatenation behavior.

h2/src/main/org/h2/jdbc/JdbcSQLException.java

@@ -132,6 +132,7 @@ public class JdbcSQLException extends SQLException {
 
     /**
      * Returns the SQL statement.
+     * SQL statements that contain '--hide--' are not listed.
      *
      * @return the SQL statement
      */
@@ -143,9 +144,11 @@ public class JdbcSQLException extends SQLException {
      * INTERNAL
      */
     public void setSQL(String sql) {
+        if (sql.indexOf("--hide--") < 0) {
             this.sql = sql;
             buildMessage();
         }
+    }
 
     private void buildMessage() {
         StringBuilder buff = new StringBuilder(originalMessage == null ? "- " : originalMessage);

h2/src/main/org/h2/table/TableLink.java

@@ -325,6 +325,7 @@ public class TableLink extends Table {
         if (readOnly) {
             buff.append(" READONLY");
         }
+        buff.append(" /*--hide--*/");
         return buff.toString();
     }
 

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

@@ -15,7 +15,6 @@ import java.sql.ResultSetMetaData;
 import java.sql.SQLException;
 import java.sql.Statement;
 import java.sql.Timestamp;
-
 import org.h2.constant.SysProperties;
 import org.h2.test.TestBase;
 
@@ -34,6 +33,7 @@ public class TestLinkedTable extends TestBase {
     }
 
     public void test() throws SQLException {
+        testHiddenSQL();
         // testLinkAutoAdd();
         testNestedQueriesToSameTable();
         testSharedConnection();
@@ -50,6 +50,30 @@ public class TestLinkedTable extends TestBase {
         deleteDb("linkedTable");
     }
 
+    private void testHiddenSQL() throws SQLException {
+        if (config.memory || !SysProperties.SHARE_LINKED_CONNECTIONS) {
+            return;
+        }
+        org.h2.Driver.load();
+        deleteDb("linkedTable");
+        Connection conn = getConnection("linkedTable");
+        try {
+            conn.createStatement().execute(
+                    "create linked table test(null, 'jdbc:h2:mem:', 'sa', 'pwd', 'DUAL2')");
+            fail();
+        } catch (SQLException e) {
+            assertTrue(e.toString().indexOf("pwd") >= 0);
+        }
+        try {
+            conn.createStatement().execute(
+                    "create linked table test(null, 'jdbc:h2:mem:', 'sa', 'pwd', 'DUAL2') --hide--");
+            fail();
+        } catch (SQLException e) {
+            assertTrue(e.toString().indexOf("pwd") < 0);
+        }
+        conn.close();
+    }
+
     // this is not a bug, it is the documented behavior
 //    private void testLinkAutoAdd() throws SQLException {
 //        Class.forName("org.h2.Driver");