Partially revert the previous commit

h2/src/main/org/h2/util/Utils.java

@@ -14,7 +14,6 @@ import java.lang.management.OperatingSystemMXBean;
 import java.lang.reflect.Constructor;
 import java.lang.reflect.Method;
 import java.lang.reflect.Modifier;
-import java.math.BigDecimal;
 import java.util.Arrays;
 import java.util.Comparator;
 import java.util.HashMap;
@@ -689,11 +688,6 @@ public class Utils {
                 return false;
             }
         }
-        try {
-            return new BigDecimal(value).signum() != 0;
-        } catch (NumberFormatException e) {
-            // Nothing to do
-        }
         if (throwException) {
             throw new IllegalArgumentException(value);
         }

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

@@ -31,7 +31,6 @@ import org.h2.util.DateTimeUtils;
 import org.h2.util.JdbcUtils;
 import org.h2.util.MathUtils;
 import org.h2.util.StringUtils;
-import org.h2.util.Utils;
 
 /**
  * This is the base class for all value classes.
@@ -1012,10 +1011,19 @@ public abstract class Value {
             case NULL:
                 return ValueNull.INSTANCE;
             case BOOLEAN: {
-                try {
-                    return ValueBoolean.get(Utils.parseBoolean(s, false, true));
-                } catch (IllegalArgumentException e) {
-                    throw DbException.get(ErrorCode.DATA_CONVERSION_ERROR_1, s);
+                if (s.equalsIgnoreCase("true") ||
+                        s.equalsIgnoreCase("t") ||
+                        s.equalsIgnoreCase("yes") ||
+                        s.equalsIgnoreCase("y")) {
+                    return ValueBoolean.get(true);
+                } else if (s.equalsIgnoreCase("false") ||
+                        s.equalsIgnoreCase("f") ||
+                        s.equalsIgnoreCase("no") ||
+                        s.equalsIgnoreCase("n")) {
+                    return ValueBoolean.get(false);
+                } else {
+                    // convert to a number, and if it is not 0 then it is true
+                    return ValueBoolean.get(new BigDecimal(s).signum() != 0);
                 }
             }
             case BYTE:

h2/src/test/org/h2/test/unit/TestUtils.java

@@ -265,11 +265,6 @@ public class TestUtils extends TestBase {
         testParseBooleanCheckTrue("true");
         testParseBooleanCheckTrue("True");
         testParseBooleanCheckTrue("TRUE");
-        // Test numbers
-        testParseBooleanCheckFalse("0.0");
-        testParseBooleanCheckFalse("-0.0");
-        testParseBooleanCheckTrue("0.1");
-        testParseBooleanCheckTrue("-0.1");
         // Test other values
         assertFalse(Utils.parseBoolean("BAD", false, false));
         assertTrue(Utils.parseBoolean("BAD", true, false));