Reimplement TO_DATE without a Calendar and fix a lot of bugs an incompatibilities

h2/src/main/org/h2/expression/Function.java

@@ -98,7 +98,7 @@ public class Function extends Expression implements FunctionCall {
             XMLATTR = 83, XMLNODE = 84, XMLCOMMENT = 85, XMLCDATA = 86,
             XMLSTARTDOC = 87, XMLTEXT = 88, REGEXP_REPLACE = 89, RPAD = 90,
             LPAD = 91, CONCAT_WS = 92, TO_CHAR = 93, TRANSLATE = 94, ORA_HASH = 95,
-            TO_DATE = 96, TO_TIMESTAMP = 97, ADD_MONTHS = 98;
+            TO_DATE = 96, TO_TIMESTAMP = 97, ADD_MONTHS = 98, TO_TIMESTAMP_TZ = 99;
 
     public static final int CURDATE = 100, CURTIME = 101, DATE_ADD = 102,
             DATE_DIFF = 103, DAY_NAME = 104, DAY_OF_MONTH = 105,
@@ -335,6 +335,7 @@ public class Function extends Expression implements FunctionCall {
         addFunction("TO_DATE", TO_DATE, VAR_ARGS, Value.TIMESTAMP);
         addFunction("TO_TIMESTAMP", TO_TIMESTAMP, VAR_ARGS, Value.TIMESTAMP);
         addFunction("ADD_MONTHS", ADD_MONTHS, 2, Value.TIMESTAMP);
+        addFunction("TO_TIMESTAMP_TZ", TO_TIMESTAMP_TZ, VAR_ARGS, Value.TIMESTAMP_TZ);
         // alias for MSSQLServer
         addFunctionNotDeterministic("GETDATE", CURDATE,
                 0, Value.DATE);
@@ -1455,16 +1456,20 @@ public class Function extends Expression implements FunctionCall {
             }
             break;
         case TO_DATE:
-            result = ValueTimestamp.get(ToDateParser.toDate(v0.getString(),
-                    v1 == null ? null : v1.getString()));
+            result = ToDateParser.toDate(v0.getString(),
+                    v1 == null ? null : v1.getString());
             break;
         case TO_TIMESTAMP:
-            result = ValueTimestamp.get(ToDateParser.toTimestamp(v0.getString(),
-                    v1 == null ? null : v1.getString()));
+            result = ToDateParser.toTimestamp(v0.getString(),
+                    v1 == null ? null : v1.getString());
             break;
         case ADD_MONTHS:
             result = dateadd("MONTH", v1.getInt(), v0);
             break;
+        case TO_TIMESTAMP_TZ:
+            result = ToDateParser.toTimestampTz(v0.getString(),
+                    v1 == null ? null : v1.getString());
+            break;
         case TRANSLATE: {
             String matching = v1.getString();
             String replacement = v2.getString();
@@ -2307,6 +2312,7 @@ public class Function extends Expression implements FunctionCall {
         case XMLTEXT:
         case TRUNCATE:
         case TO_TIMESTAMP:
+        case TO_TIMESTAMP_TZ:
             min = 1;
             max = 2;
             break;

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

@@ -28,7 +28,7 @@ public class ToChar {
     /**
      * The beginning of the Julian calendar.
      */
-    private static final int JULIAN_EPOCH = -2_440_588;
+    static final int JULIAN_EPOCH = -2_440_588;
 
     private static final int[] ROMAN_VALUES = { 1000, 900, 500, 400, 100, 90, 50, 40, 10, 9,
             5, 4, 1 };
@@ -36,7 +36,7 @@ public class ToChar {
     private static final String[] ROMAN_NUMERALS = { "M", "CM", "D", "CD", "C", "XC",
             "L", "XL", "X", "IX", "V", "IV", "I" };
 
-    private static final int MONTHS = 0, SHORT_MONTHS = 1, WEEKDAYS = 2, SHORT_WEEKDAYS = 3, AM_PM = 4;
+    static final int MONTHS = 0, SHORT_MONTHS = 1, WEEKDAYS = 2, SHORT_WEEKDAYS = 3, AM_PM = 4;
 
     private static volatile String[][] NAMES;
 
@@ -454,7 +454,7 @@ public class ToChar {
         return hex;
     }
 
-    private static String[] getNames(int names) {
+    static String[] getNames(int names) {
         String[][] result = NAMES;
         if (result == null) {
             result = new String[5][];

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

@@ -7,9 +7,13 @@ package org.h2.util;
 
 import static java.lang.String.format;
 
-import java.sql.Timestamp;
 import java.util.Calendar;
+import java.util.GregorianCalendar;
 import java.util.List;
+import java.util.TimeZone;
+
+import org.h2.value.ValueTimestamp;
+import org.h2.value.ValueTimestampTimeZone;
 
 /**
  * Emulates Oracle's TO_DATE function.<br>
@@ -21,8 +25,29 @@ public class ToDateParser {
     private final ConfigParam functionName;
     private String inputStr;
     private String formatStr;
-    private final Calendar resultCalendar = DateTimeUtils.createGregorianCalendar();
-    private Integer nanos;
+
+    private boolean doyValid = false, absoluteDayValid = false,
+            hour12Valid = false,
+            timeZoneHMValid = false;
+
+    private boolean bc;
+
+    private long absoluteDay;
+
+    private int year, month, day = 1;
+
+    private int dayOfYear;
+
+    private int hour, minute, second, nanos;
+
+    private int hour12;
+    boolean isAM = true;
+
+    private TimeZone timeZone;
+
+    private int timeZoneHour, timeZoneMinute;
+
+    private int currentYear, currentMonth;
 
     /**
      * @param input the input date with the date-time info
@@ -32,18 +57,6 @@ public class ToDateParser {
      */
     private ToDateParser(ConfigParam functionName, String input, String format) {
         // reset calendar - default oracle behaviour
-        resultCalendar.set(Calendar.YEAR, 1970);
-        resultCalendar.set(Calendar.MONTH, DateTimeUtils.createGregorianCalendar().get(Calendar.MONTH));
-        resultCalendar.clear(Calendar.DAY_OF_YEAR);
-        resultCalendar.clear(Calendar.DAY_OF_WEEK);
-        resultCalendar.clear(Calendar.DAY_OF_WEEK_IN_MONTH);
-        resultCalendar.set(Calendar.DAY_OF_MONTH, 1);
-        resultCalendar.set(Calendar.HOUR, 0);
-        resultCalendar.set(Calendar.HOUR_OF_DAY, 0);
-        resultCalendar.set(Calendar.MINUTE, 0);
-        resultCalendar.set(Calendar.SECOND, 0);
-        resultCalendar.set(Calendar.MILLISECOND, 0);
-        resultCalendar.set(Calendar.AM_PM, Calendar.AM);
 
         this.functionName = functionName;
         inputStr = input.trim();
@@ -59,30 +72,65 @@ public class ToDateParser {
         unmodifiedFormatStr = formatStr;
     }
 
-    private static ToDateParser getDateParser(String input, String format) {
-        ToDateParser result = new ToDateParser(ConfigParam.TO_DATE, input, format);
+    private static ToDateParser getTimestampParser(ConfigParam param, String input, String format) {
+        ToDateParser result = new ToDateParser(param, input, format);
         parse(result);
         return result;
     }
 
-    private static ToDateParser getTimestampParser(String input, String format) {
-        ToDateParser result = new ToDateParser(ConfigParam.TO_TIMESTAMP, input, format);
-        parse(result);
-        return result;
+    private ValueTimestamp getResultingValue() {
+        long dateValue;
+        if (absoluteDayValid) {
+            dateValue = DateTimeUtils.dateValueFromAbsoluteDay(absoluteDay);
+        } else {
+            int year = this.year;
+            if (year == 0) {
+                year = getCurrentYear();
+            }
+            if (bc) {
+                year = 1 - year;
+            }
+            if (doyValid) {
+                dateValue = DateTimeUtils.dateValueFromAbsoluteDay(
+                        DateTimeUtils.absoluteDayFromDateValue(DateTimeUtils.dateValue(year, 1, 1))
+                        + dayOfYear - 1);
+            } else {
+                int month = this.month;
+                if (month == 0) {
+                    // Oracle uses current month as default
+                    month = getCurrentMonth();
+                }
+                dateValue = DateTimeUtils.dateValue(year, month, day);
             }
-
-    private Timestamp getResultingTimestamp() {
-        Calendar cal = (Calendar) getResultCalendar().clone();
-        int nanosToSet = nanos == null ?
-                cal.get(Calendar.MILLISECOND) * 1000000 : nanos.intValue();
-        cal.set(Calendar.MILLISECOND, 0);
-        Timestamp ts = new Timestamp(cal.getTimeInMillis());
-        ts.setNanos(nanosToSet);
-        return ts;
+        }
+        int hour;
+        if (hour12Valid) {
+            hour = hour12 % 12;
+            if (!isAM) {
+                hour += 12;
+            }
+        } else {
+            hour = this.hour;
+        }
+        long timeNanos = ((((hour * 60) + minute) * 60) + second) * 1_000_000_000L + nanos;
+        return ValueTimestamp.fromDateValueAndNanos(dateValue, timeNanos);
     }
 
-    Calendar getResultCalendar() {
-        return resultCalendar;
+    private ValueTimestampTimeZone getResultingValueWithTimeZone() {
+        ValueTimestamp ts = getResultingValue();
+        long dateValue = ts.getDateValue();
+        short offset;
+        if (timeZoneHMValid) {
+            offset = (short) (timeZoneHour * 60 + ((timeZoneHour >= 0) ? timeZoneMinute : -timeZoneMinute));
+        } else {
+            TimeZone timeZone = this.timeZone;
+            if (timeZone == null) {
+                timeZone = TimeZone.getDefault();
+            }
+            long millis = DateTimeUtils.convertDateTimeValueToMillis(timeZone, dateValue, nanos / 1000000);
+            offset = (short) (timeZone.getOffset(millis) / 1000 / 60);
+        }
+        return ValueTimestampTimeZone.fromDateValueAndNanos(dateValue, ts.getTimeNanos(), offset);
     }
 
     String getInputStr() {
@@ -97,10 +145,111 @@ public class ToDateParser {
         return functionName.name();
     }
 
+    private void queryCurrentYearAndMonth() {
+        GregorianCalendar gc = DateTimeUtils.getCalendar();
+        gc.setTimeInMillis(System.currentTimeMillis());
+        currentYear = gc.get(Calendar.YEAR);
+        currentMonth = gc.get(Calendar.MONTH) + 1;
+    }
+
+    int getCurrentYear() {
+        if (currentYear == 0) {
+            queryCurrentYearAndMonth();
+        }
+        return currentYear;
+    }
+
+    int getCurrentMonth() {
+        if (currentMonth == 0) {
+            queryCurrentYearAndMonth();
+        }
+        return currentMonth;
+    }
+
+    void setAbsoluteDay(int absoluteDay) {
+        doyValid = false;
+        absoluteDayValid = true;
+        this.absoluteDay = absoluteDay;
+    }
+
+    void setBC(boolean bc) {
+        doyValid = false;
+        absoluteDayValid = false;
+        this.bc = bc;
+    }
+
+    void setYear(int year) {
+        doyValid = false;
+        absoluteDayValid = false;
+        this.year = year;
+    }
+
+    void setMonth(int month) {
+        doyValid = false;
+        absoluteDayValid = false;
+        this.month = month;
+        if (year == 0) {
+            year = 1970;
+        }
+    }
+
+    void setDay(int day) {
+        doyValid = false;
+        absoluteDayValid = false;
+        this.day = day;
+        if (year == 0) {
+            year = 1970;
+        }
+    }
+
+    void setDayOfYear(int dayOfYear) {
+        doyValid = true;
+        absoluteDayValid = false;
+        this.dayOfYear = dayOfYear;
+    }
+
+    void setHour(int hour) {
+        hour12Valid = false;
+        this.hour = hour;
+    }
+
+    void setMinute(int minute) {
+        this.minute = minute;
+    }
+
+    void setSecord(int second) {
+        this.second = second;
+    }
+
     void setNanos(int nanos) {
         this.nanos = nanos;
     }
 
+    void setAmPm(boolean isAM) {
+        hour12Valid = true;
+        this.isAM = isAM;
+    }
+
+    void setHour12(int hour12) {
+        hour12Valid = true;
+        this.hour12 = hour12;
+    }
+
+    void setTimeZone(TimeZone timeZone) {
+        timeZoneHMValid = false;
+        this.timeZone = timeZone;
+    }
+
+    void setTimeZoneHour(int timeZoneHour) {
+        timeZoneHMValid = true;
+        this.timeZoneHour = timeZoneHour;
+    }
+
+    void setTimeZoneMinute(int timeZoneMinute) {
+        timeZoneHMValid = true;
+        this.timeZoneMinute = timeZoneMinute;
+    }
+
     private boolean hasToParseData() {
         return formatStr.length() > 0;
     }
@@ -180,9 +329,21 @@ public class ToDateParser {
      * @param format the format
      * @return the timestamp
      */
-    public static Timestamp toTimestamp(String input, String format) {
-        ToDateParser parser = getTimestampParser(input, format);
-        return parser.getResultingTimestamp();
+    public static ValueTimestamp toTimestamp(String input, String format) {
+        ToDateParser parser = getTimestampParser(ConfigParam.TO_TIMESTAMP, input, format);
+        return parser.getResultingValue();
+    }
+
+    /**
+     * Parse a string as a timestamp with the given format.
+     *
+     * @param input the input
+     * @param format the format
+     * @return the timestamp
+     */
+    public static ValueTimestampTimeZone toTimestampTz(String input, String format) {
+        ToDateParser parser = getTimestampParser(ConfigParam.TO_TIMESTAMP_TZ, input, format);
+        return parser.getResultingValueWithTimeZone();
     }
 
     /**
@@ -192,9 +353,9 @@ public class ToDateParser {
      * @param format the format
      * @return the date as a timestamp
      */
-    public static Timestamp toDate(String input, String format) {
-        ToDateParser parser = getDateParser(input, format);
-        return parser.getResultingTimestamp();
+    public static ValueTimestamp toDate(String input, String format) {
+        ToDateParser parser = getTimestampParser(ConfigParam.TO_DATE, input, format);
+        return parser.getResultingValue();
     }
 
     /**
@@ -202,7 +363,8 @@ public class ToDateParser {
      */
     private enum ConfigParam {
         TO_DATE("DD MON YYYY"),
-        TO_TIMESTAMP("DD MON YYYY HH:MI:SS");
+        TO_TIMESTAMP("DD MON YYYY HH:MI:SS"),
+        TO_TIMESTAMP_TZ("DD MON YYYY HH:MI:SS TZR");
 
         private final String defaultFormatStr;
         ConfigParam(String defaultFormatStr) {

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

@@ -6,17 +6,12 @@
 package org.h2.util;
 
 import static java.lang.String.format;
-import java.text.ParseException;
-import java.text.SimpleDateFormat;
+
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.Calendar;
 import java.util.Collections;
-import java.util.Date;
-import java.util.GregorianCalendar;
 import java.util.HashMap;
 import java.util.List;
-import java.util.Locale;
 import java.util.Map;
 import java.util.TimeZone;
 import java.util.regex.Matcher;
@@ -144,10 +139,10 @@ class ToDateTokenizer {
      * Parslet responsible for parsing year parameter
      */
     static class YearParslet implements ToDateParslet {
+
         @Override
         public void parse(ToDateParser params, FormatTokenEnum formatTokenEnum,
                 String formatTokenStr) {
-            Calendar result = params.getResultCalendar();
             String inputFragmentStr = null;
             int dateNr = 0;
             switch (formatTokenEnum) {
@@ -156,26 +151,26 @@ class ToDateTokenizer {
             case IYYY:
                 inputFragmentStr = matchStringOrThrow(PATTERN_FOUR_DIGITS,
                         params, formatTokenEnum);
-                // only necessary for Java1.6
-                if (inputFragmentStr.startsWith("+")) {
-                    inputFragmentStr = inputFragmentStr.substring(1);
-                }
                 dateNr = Integer.parseInt(inputFragmentStr);
                 // Gregorian calendar does not have a year 0.
                 // 0 = 0001 BC, -1 = 0002 BC, ... so we adjust
                 if (dateNr == 0) {
                     throwException(params, "Year may not be zero");
                 }
-                result.set(Calendar.YEAR, dateNr >= 0 ? dateNr : dateNr + 1);
+                params.setYear(dateNr >= 0 ? dateNr : dateNr + 1);
                 break;
             case YYY:
             case IYY:
                 inputFragmentStr = matchStringOrThrow(PATTERN_THREE_DIGITS,
                         params, formatTokenEnum);
                 dateNr = Integer.parseInt(inputFragmentStr);
+                if (dateNr > 999) {
+                    throwException(params, "Year may have only three digits with specified format");
+                }
+                dateNr += (params.getCurrentYear() / 1_000) * 1_000;
                 // Gregorian calendar does not have a year 0.
                 // 0 = 0001 BC, -1 = 0002 BC, ... so we adjust
-                result.set(Calendar.YEAR, dateNr >= 0 ? dateNr : dateNr + 1);
+                params.setYear(dateNr >= 0 ? dateNr : dateNr + 1);
                 break;
             case RRRR:
                 inputFragmentStr = matchStringOrThrow(
@@ -191,15 +186,14 @@ class ToDateTokenizer {
                 if (dateNr == 0) {
                     throwException(params, "Year may not be zero");
                 }
-                result.set(Calendar.YEAR, dateNr);
+                params.setYear(dateNr);
                 break;
             case RR:
-                Calendar calendar = DateTimeUtils.createGregorianCalendar();
-                int cc = calendar.get(Calendar.YEAR) / 100;
+                int cc = params.getCurrentYear() / 100;
                 inputFragmentStr = matchStringOrThrow(PATTERN_TWO_DIGITS,
                         params, formatTokenEnum);
                 dateNr = Integer.parseInt(inputFragmentStr) + cc * 100;
-                result.set(Calendar.YEAR, dateNr);
+                params.setYear(dateNr);
                 break;
             case EE /* NOT supported yet */:
                 throwException(params, format("token '%s' not supported yet.",
@@ -214,34 +208,38 @@ class ToDateTokenizer {
                 inputFragmentStr = matchStringOrThrow(PATTERN_TWO_DIGITS,
                         params, formatTokenEnum);
                 dateNr = Integer.parseInt(inputFragmentStr);
+                if (dateNr > 99) {
+                    throwException(params, "Year may have only two digits with specified format");
+                }
+                dateNr += (params.getCurrentYear() / 100) * 100;
                 // Gregorian calendar does not have a year 0.
                 // 0 = 0001 BC, -1 = 0002 BC, ... so we adjust
-                result.set(Calendar.YEAR, dateNr >= 0 ? dateNr : dateNr + 1);
+                params.setYear(dateNr >= 0 ? dateNr : dateNr + 1);
                 break;
             case SCC:
             case CC:
                 inputFragmentStr = matchStringOrThrow(PATTERN_TWO_DIGITS,
                         params, formatTokenEnum);
                 dateNr = Integer.parseInt(inputFragmentStr) * 100;
-                result.set(Calendar.YEAR, dateNr);
+                params.setYear(dateNr);
                 break;
             case Y:
             case I:
                 inputFragmentStr = matchStringOrThrow(PATTERN_ONE_DIGIT, params,
                         formatTokenEnum);
                 dateNr = Integer.parseInt(inputFragmentStr);
+                if (dateNr > 9) {
+                    throwException(params, "Year may have only two digits with specified format");
+                }
+                dateNr += (params.getCurrentYear() / 10) * 10;
                 // Gregorian calendar does not have a year 0.
                 // 0 = 0001 BC, -1 = 0002 BC, ... so we adjust
-                result.set(Calendar.YEAR, dateNr >= 0 ? dateNr : dateNr + 1);
+                params.setYear(dateNr >= 0 ? dateNr : dateNr + 1);
                 break;
             case BC_AD:
                 inputFragmentStr = matchStringOrThrow(PATTERN_BC_AD, params,
                         formatTokenEnum);
-                if (inputFragmentStr.toUpperCase().startsWith("B")) {
-                    result.set(Calendar.ERA, GregorianCalendar.BC);
-                } else {
-                    result.set(Calendar.ERA, GregorianCalendar.AD);
-                }
+                params.setBC(inputFragmentStr.toUpperCase().startsWith("B"));
                 break;
             default:
                 throw new IllegalArgumentException(format(
@@ -262,29 +260,26 @@ class ToDateTokenizer {
         @Override
         public void parse(ToDateParser params, FormatTokenEnum formatTokenEnum,
                 String formatTokenStr) {
-            Calendar result = params.getResultCalendar();
             String s = params.getInputStr();
             String inputFragmentStr = null;
             int dateNr = 0;
             switch (formatTokenEnum) {
             case MONTH:
-                inputFragmentStr = setByName(result, params, Calendar.MONTH,
-                        Calendar.LONG);
+                inputFragmentStr = setByName(params, ToChar.MONTHS);
                 break;
             case Q /* NOT supported yet */:
                 throwException(params, format("token '%s' not supported yet.",
                         formatTokenEnum.name()));
                 break;
             case MON:
-                inputFragmentStr = setByName(result, params, Calendar.MONTH,
-                        Calendar.SHORT);
+                inputFragmentStr = setByName(params, ToChar.SHORT_MONTHS);
                 break;
             case MM:
                 // Note: In Calendar Month go from 0 - 11
                 inputFragmentStr = matchStringOrThrow(
                         PATTERN_TWO_DIGITS_OR_LESS, params, formatTokenEnum);
                 dateNr = Integer.parseInt(inputFragmentStr);
-                result.set(Calendar.MONTH, dateNr - 1);
+                params.setMonth(dateNr);
                 break;
             case RM:
                 dateNr = 0;
@@ -293,7 +288,7 @@ class ToDateTokenizer {
                     int len = monthName.length();
                     if (s.length() >= len && monthName
                             .equalsIgnoreCase(s.substring(0, len))) {
-                        result.set(Calendar.MONTH, dateNr);
+                        params.setMonth(dateNr + 1);
                         inputFragmentStr = monthName;
                         break;
                     }
@@ -322,7 +317,6 @@ class ToDateTokenizer {
         @Override
         public void parse(ToDateParser params, FormatTokenEnum formatTokenEnum,
                 String formatTokenStr) {
-            Calendar result = params.getResultCalendar();
             String inputFragmentStr = null;
             int dateNr = 0;
             switch (formatTokenEnum) {
@@ -330,40 +324,31 @@ class ToDateTokenizer {
                 inputFragmentStr = matchStringOrThrow(PATTERN_NUMBER, params,
                         formatTokenEnum);
                 dateNr = Integer.parseInt(inputFragmentStr);
-                result.set(Calendar.DAY_OF_YEAR, dateNr);
+                params.setDayOfYear(dateNr);
                 break;
             case DD:
                 inputFragmentStr = matchStringOrThrow(
                         PATTERN_TWO_DIGITS_OR_LESS, params, formatTokenEnum);
                 dateNr = Integer.parseInt(inputFragmentStr);
-                result.set(Calendar.DAY_OF_MONTH, dateNr);
+                params.setDay(dateNr);
                 break;
             case D:
                 inputFragmentStr = matchStringOrThrow(PATTERN_ONE_DIGIT, params,
                         formatTokenEnum);
                 dateNr = Integer.parseInt(inputFragmentStr);
-                result.set(Calendar.DAY_OF_MONTH, dateNr);
+                params.setDay(dateNr);
                 break;
             case DAY:
-                inputFragmentStr = setByName(result, params,
-                        Calendar.DAY_OF_WEEK, Calendar.LONG);
+                inputFragmentStr = setByName(params, ToChar.WEEKDAYS);
                 break;
             case DY:
-                inputFragmentStr = setByName(result, params,
-                        Calendar.DAY_OF_WEEK, Calendar.SHORT);
+                inputFragmentStr = setByName(params, ToChar.SHORT_WEEKDAYS);
                 break;
             case J:
                 inputFragmentStr = matchStringOrThrow(PATTERN_NUMBER, params,
                         formatTokenEnum);
-                try {
-                    Date date = new SimpleDateFormat("Myydd")
-                            .parse(inputFragmentStr);
-                    result.setTime(date);
-                } catch (ParseException e) {
-                    throwException(params,
-                            format("Failed to parse Julian date: %s",
-                                    inputFragmentStr));
-                }
+                dateNr = Integer.parseInt(inputFragmentStr);
+                params.setAbsoluteDay(dateNr + ToChar.JULIAN_EPOCH);
                 break;
             default:
                 throw new IllegalArgumentException(format(
@@ -382,7 +367,6 @@ class ToDateTokenizer {
         @Override
         public void parse(ToDateParser params, FormatTokenEnum formatTokenEnum,
                 String formatTokenStr) {
-            Calendar result = params.getResultCalendar();
             String inputFragmentStr = null;
             int dateNr = 0;
             switch (formatTokenEnum) {
@@ -390,97 +374,76 @@ class ToDateTokenizer {
                 inputFragmentStr = matchStringOrThrow(
                         PATTERN_TWO_DIGITS_OR_LESS, params, formatTokenEnum);
                 dateNr = Integer.parseInt(inputFragmentStr);
-                result.set(Calendar.HOUR_OF_DAY, dateNr);
+                params.setHour(dateNr);
                 break;
             case HH12:
             case HH:
                 inputFragmentStr = matchStringOrThrow(
                         PATTERN_TWO_DIGITS_OR_LESS, params, formatTokenEnum);
                 dateNr = Integer.parseInt(inputFragmentStr);
-                result.set(Calendar.HOUR, dateNr);
+                params.setHour12(dateNr);
                 break;
             case MI:
                 inputFragmentStr = matchStringOrThrow(
                         PATTERN_TWO_DIGITS_OR_LESS, params, formatTokenEnum);
                 dateNr = Integer.parseInt(inputFragmentStr);
-                result.set(Calendar.MINUTE, dateNr);
+                params.setMinute(dateNr);
                 break;
             case SS:
                 inputFragmentStr = matchStringOrThrow(
                         PATTERN_TWO_DIGITS_OR_LESS, params, formatTokenEnum);
                 dateNr = Integer.parseInt(inputFragmentStr);
-                result.set(Calendar.SECOND, dateNr);
+                params.setSecord(dateNr);
                 break;
-            case SSSSS:
+            case SSSSS: {
                 inputFragmentStr = matchStringOrThrow(PATTERN_NUMBER, params,
                         formatTokenEnum);
                 dateNr = Integer.parseInt(inputFragmentStr);
-                result.set(Calendar.HOUR_OF_DAY, 0);
-                result.set(Calendar.MINUTE, 0);
-                result.set(Calendar.SECOND, dateNr);
+                int second = dateNr % 60;
+                dateNr /= 60;
+                int minute = dateNr % 60;
+                dateNr /= 60;
+                int hour = dateNr % 24;
+                params.setHour(hour);
+                params.setMinute(minute);
+                params.setSecord(second);
                 break;
+            }
             case FF:
                 inputFragmentStr = matchStringOrThrow(PATTERN_NUMBER, params,
                         formatTokenEnum);
                 String paddedRightNrStr = format("%-9s", inputFragmentStr)
                         .replace(' ', '0');
                 paddedRightNrStr = paddedRightNrStr.substring(0, 9);
-                Double nineDigits = Double.parseDouble(paddedRightNrStr);
-                params.setNanos(nineDigits.intValue());
-                dateNr = (int) Math.round(nineDigits / 1000000.0);
-                result.set(Calendar.MILLISECOND, dateNr);
+                double nineDigits = Double.parseDouble(paddedRightNrStr);
+                params.setNanos((int) nineDigits);
                 break;
             case AM_PM:
                 inputFragmentStr = matchStringOrThrow(PATTERN_AM_PM, params,
                         formatTokenEnum);
                 if (inputFragmentStr.toUpperCase().startsWith("A")) {
-                    result.set(Calendar.AM_PM, Calendar.AM);
+                    params.setAmPm(true);
                 } else {
-                    result.set(Calendar.AM_PM, Calendar.PM);
+                    params.setAmPm(false);
                 }
                 break;
             case TZH:
                 inputFragmentStr = matchStringOrThrow(
                         PATTERN_TWO_DIGITS_OR_LESS, params, formatTokenEnum);
                 dateNr = Integer.parseInt(inputFragmentStr);
-                TimeZone tz = result.getTimeZone();
-                int offsetMillis = tz.getRawOffset();
-                // purge min and sec
-                offsetMillis = (offsetMillis / MILLIS_IN_HOUR) * MILLIS_IN_HOUR;
-                tz.setRawOffset(offsetMillis + dateNr);
-                result.setTimeZone(tz);
+                params.setTimeZoneHour(dateNr);
                 break;
             case TZM:
                 inputFragmentStr = matchStringOrThrow(
                         PATTERN_TWO_DIGITS_OR_LESS, params, formatTokenEnum);
                 dateNr = Integer.parseInt(inputFragmentStr);
-                tz = result.getTimeZone();
-                offsetMillis = tz.getRawOffset();
-                // purge hour
-                offsetMillis = offsetMillis % MILLIS_IN_HOUR;
-                tz.setRawOffset(dateNr * MILLIS_IN_HOUR + offsetMillis);
-                result.setTimeZone(tz);
+                params.setTimeZoneMinute(dateNr);
                 break;
             case TZR:
-                // Example: US/Pacific
-                String s = params.getInputStr();
-                tz = result.getTimeZone();
-                for (String tzName : TimeZone.getAvailableIDs()) {
-                    int length = tzName.length();
-                    if (s.length() >= length && tzName
-                            .equalsIgnoreCase(s.substring(0, length))) {
-                        tz.setID(tzName);
-                        result.setTimeZone(tz);
-                        inputFragmentStr = tzName;
-                        break;
-                    }
-                }
-                break;
             case TZD:
-                // Must correspond with TZR region. Example: PST (for US/Pacific
-                // standard time)
-                throwException(params, format("token '%s' not supported yet.",
-                        formatTokenEnum.name()));
+                String tzName = params.getInputStr();
+                params.setTimeZone(TimeZone.getTimeZone(tzName));
+                inputFragmentStr = tzName;
                 break;
             default:
                 throw new IllegalArgumentException(format(
@@ -535,22 +498,33 @@ class ToDateTokenizer {
     /**
      * Set the given field in the calendar.
      *
-     * @param c the calendar
      * @param params the parameters with the input string
      * @param field the field to set
-     * @param style the data type
      * @return the matched value
      */
-    static String setByName(Calendar c, ToDateParser params, int field,
-            int style) {
+    static String setByName(ToDateParser params, int field) {
         String inputFragmentStr = null;
         String s = params.getInputStr();
-        Map<String, Integer> timeStringMap = c.getDisplayNames(field, style,
-                Locale.getDefault());
-        for (String dayName : timeStringMap.keySet()) {
+        String[] values = ToChar.getNames(field);
+        for (int i = 0; i < values.length; i++) {
+            String dayName = values[i];
+            if (dayName == null) {
+                continue;
+            }
             int len = dayName.length();
             if (dayName.equalsIgnoreCase(s.substring(0, len))) {
-                c.set(field, timeStringMap.get(dayName));
+                switch (field) {
+                case ToChar.MONTHS:
+                case ToChar.SHORT_MONTHS:
+                    params.setMonth(i + 1);
+                    break;
+                case ToChar.WEEKDAYS:
+                case ToChar.SHORT_WEEKDAYS:
+                    // TODO
+                    break;
+                default:
+                    throw new IllegalArgumentException();
+                }
                 inputFragmentStr = dayName;
                 break;
             }
@@ -558,7 +532,7 @@ class ToDateTokenizer {
         if (inputFragmentStr == null || inputFragmentStr.isEmpty()) {
             throwException(params, format(
                     "Tried to parse one of '%s' but failed (may be an internal error?)",
-                    timeStringMap.keySet()));
+                    Arrays.toString(values)));
         }
         return inputFragmentStr;
     }

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

@@ -34,6 +34,7 @@ import java.util.ArrayList;
 import java.util.Calendar;
 import java.util.Currency;
 import java.util.Date;
+import java.util.GregorianCalendar;
 import java.util.HashMap;
 import java.util.Locale;
 import java.util.Properties;
@@ -56,6 +57,8 @@ import org.h2.util.StringUtils;
 import org.h2.util.ToChar.Capitalization;
 import org.h2.util.ToDateParser;
 import org.h2.value.Value;
+import org.h2.value.ValueTimestamp;
+import org.h2.value.ValueTimestampTimeZone;
 
 /**
  * Tests for user defined functions and aggregates.
@@ -1296,10 +1299,13 @@ public class TestFunctions extends TestBase implements AggregateFunction {
     }
 
     private void testToDate() throws ParseException {
-        final int month = DateTimeUtils.createGregorianCalendar().get(Calendar.MONTH);
-
-        Date date = null;
-        date = new SimpleDateFormat("yyyy-MM-dd").parse("1979-11-12");
+        GregorianCalendar calendar = DateTimeUtils.createGregorianCalendar();
+        int year = calendar.get(Calendar.YEAR);
+        int month = calendar.get(Calendar.MONTH) + 1;
+        // Default date in Oracle is the first day of the current month
+        String defDate = year + "-" + month + "-1 ";
+        ValueTimestamp date = null;
+        date = ValueTimestamp.parse("1979-11-12");
         assertEquals(date, ToDateParser.toDate("1979-11-12T00:00:00Z", "YYYY-MM-DD\"T\"HH24:MI:SS\"Z\""));
         assertEquals(date, ToDateParser.toDate("1979*foo*1112", "YYYY\"*foo*\"MM\"\"DD"));
         assertEquals(date, ToDateParser.toDate("1979-11-12", "YYYY-MM-DD"));
@@ -1309,8 +1315,7 @@ public class TestFunctions extends TestBase implements AggregateFunction {
         assertEquals(date, ToDateParser.toDate("1979;11;12", "YYYY;MM;DD"));
         assertEquals(date, ToDateParser.toDate("1979:11:12", "YYYY:MM:DD"));
 
-        date = new SimpleDateFormat("yyyy").parse("1979");
-        setMonth(date, month);
+        date = ValueTimestamp.parse("1979-" + month + "-01");
         assertEquals(date, ToDateParser.toDate("1979", "YYYY"));
         assertEquals(date, ToDateParser.toDate("1979 AD", "YYYY AD"));
         assertEquals(date, ToDateParser.toDate("1979 A.D.", "YYYY A.D."));
@@ -1319,116 +1324,119 @@ public class TestFunctions extends TestBase implements AggregateFunction {
         assertEquals(date, ToDateParser.toDate("+1979", "SYYYY"));
         assertEquals(date, ToDateParser.toDate("79", "RRRR"));
 
-        date = new SimpleDateFormat("yyyy-mm").parse("1970-12");
-        setMonth(date, month);
+        date = ValueTimestamp.parse(defDate + "00:12:00");
         assertEquals(date, ToDateParser.toDate("12", "MI"));
 
-        date = new SimpleDateFormat("yyyy-MM").parse("1970-11");
+        date = ValueTimestamp.parse("1970-11-01");
         assertEquals(date, ToDateParser.toDate("11", "MM"));
         assertEquals(date, ToDateParser.toDate("11", "Mm"));
         assertEquals(date, ToDateParser.toDate("11", "mM"));
         assertEquals(date, ToDateParser.toDate("11", "mm"));
         assertEquals(date, ToDateParser.toDate("XI", "RM"));
 
-        date = new SimpleDateFormat("yyyy").parse("9");
-        setMonth(date, month);
+        int y = (year / 10) * 10 + 9;
+        date = ValueTimestamp.parse(y + "-" + month + "-01");
         assertEquals(date, ToDateParser.toDate("9", "Y"));
         assertEquals(date, ToDateParser.toDate("9", "I"));
-        date = new SimpleDateFormat("yyyy").parse("79");
-        setMonth(date, month);
+        y = (year / 100) * 100 + 79;
+        date = ValueTimestamp.parse(y + "-" + month + "-01");
         assertEquals(date, ToDateParser.toDate("79", "YY"));
         assertEquals(date, ToDateParser.toDate("79", "IY"));
-
-        date = new SimpleDateFormat("yyyy").parse("979");
-        setMonth(date, month);
+        y = (year / 1_000) * 1_000 + 979;
+        date = ValueTimestamp.parse(y + "-" + month + "-01");
         assertEquals(date, ToDateParser.toDate("979", "YYY"));
         assertEquals(date, ToDateParser.toDate("979", "IYY"));
 
         // Gregorian calendar does not have a year 0.
         // 0 = 0001 BC, -1 = 0002 BC, ... so we adjust
-        date = new SimpleDateFormat("yyy").parse("-99");
-        setMonth(date, month);
+        date = ValueTimestamp.parse("-99-" + month + "-01");
         assertEquals(date, ToDateParser.toDate("0100 BC", "YYYY BC"));
         assertEquals(date, ToDateParser.toDate("0100 B.C.", "YYYY B.C."));
-        assertEquals(date, ToDateParser.toDate("100 BC", "YYY BC"));
         assertEquals(date, ToDateParser.toDate("-0100", "SYYYY"));
         assertEquals(date, ToDateParser.toDate("-0100", "YYYY"));
 
         // Gregorian calendar does not have a year 0.
         // 0 = 0001 BC, -1 = 0002 BC, ... so we adjust
-        date = new SimpleDateFormat("y").parse("0");
-        setMonth(date, month);
+        y = -((year / 1_000) * 1_000 + 99);
+        date = ValueTimestamp.parse(y + "-" + month + "-01");
+        assertEquals(date, ToDateParser.toDate("100 BC", "YYY BC"));
+
+        // Gregorian calendar does not have a year 0.
+        // 0 = 0001 BC, -1 = 0002 BC, ... so we adjust
+        y = -((year / 100) * 100);
+        date = ValueTimestamp.parse(y + "-" + month + "-01");
         assertEquals(date, ToDateParser.toDate("01 BC", "YY BC"));
+        y = -((year / 10) * 10);
+        date = ValueTimestamp.parse(y + "-" + month + "-01");
         assertEquals(date, ToDateParser.toDate("1 BC", "Y BC"));
 
-        date = new SimpleDateFormat("hh:mm:ss").parse("08:12:00");
-        setMonth(date, month);
+        date = ValueTimestamp.parse(defDate + "08:12:00");
         assertEquals(date, ToDateParser.toDate("08:12 AM", "HH:MI AM"));
         assertEquals(date, ToDateParser.toDate("08:12 A.M.", "HH:MI A.M."));
         assertEquals(date, ToDateParser.toDate("08:12", "HH24:MI"));
 
-        date = new SimpleDateFormat("hh:mm:ss").parse("08:12:00");
-        setMonth(date, month);
+        date = ValueTimestamp.parse(defDate + "08:12:00");
         assertEquals(date, ToDateParser.toDate("08:12", "HH:MI"));
         assertEquals(date, ToDateParser.toDate("08:12", "HH12:MI"));
 
-        date = new SimpleDateFormat("hh:mm:ss").parse("08:12:34");
-        setMonth(date, month);
+        date = ValueTimestamp.parse(defDate +  "08:12:34");
         assertEquals(date, ToDateParser.toDate("08:12:34", "HH:MI:SS"));
 
-        date = new SimpleDateFormat("ss").parse("34");
-        setMonth(date, month);
+        date = ValueTimestamp.parse(defDate + "12:00:00");
+        assertEquals(date, ToDateParser.toDate("12:00:00 PM", "HH12:MI:SS AM"));
+
+        date = ValueTimestamp.parse(defDate + "00:00:00");
+        assertEquals(date, ToDateParser.toDate("12:00:00 AM", "HH12:MI:SS AM"));
+
+        date = ValueTimestamp.parse(defDate + "00:00:34");
         assertEquals(date, ToDateParser.toDate("34", "SS"));
 
-        date = new SimpleDateFormat("yyyy hh:mm:ss").parse("1970 08:12:34");
-        setMonth(date, month);
+        date = ValueTimestamp.parse(defDate + "08:12:34");
         assertEquals(date, ToDateParser.toDate("29554", "SSSSS"));
 
-        date = new SimpleDateFormat("yyyy hh:mm:ss SSS").parse("1970 08:12:34 550");
-        setMonth(date, month);
+        date = ValueTimestamp.parse(defDate + "08:12:34.550");
         assertEquals(date, ToDateParser.toDate("08:12:34 550", "HH:MI:SS FF"));
         assertEquals(date, ToDateParser.toDate("08:12:34 55", "HH:MI:SS FF2"));
 
-        date = new SimpleDateFormat("hh:mm:ss").parse("14:04:00");
-        setMonth(date, month);
+        date = ValueTimestamp.parse(defDate + "14:04:00");
         assertEquals(date, ToDateParser.toDate("02:04 P.M.", "HH:MI p.M."));
         assertEquals(date, ToDateParser.toDate("02:04 PM", "HH:MI PM"));
 
-        date = new SimpleDateFormat("yyyy-MM-dd").parse("1970-12-12");
-        // does not work in all timezones
-        // assertEquals(date, ToDateParser.toDate("12", "DD"));
+        date = ValueTimestamp.parse("1970-" + month + "-12");
+        assertEquals(date, ToDateParser.toDate("12", "DD"));
 
-        date = new SimpleDateFormat("yyyy-MM-dd").parse("1970-11-12");
+        date = ValueTimestamp.parse(year + (calendar.isLeapYear(year) ? "11-11" : "-11-12"));
         assertEquals(date, ToDateParser.toDate("316", "DDD"));
         assertEquals(date, ToDateParser.toDate("316", "DdD"));
         assertEquals(date, ToDateParser.toDate("316", "dDD"));
         assertEquals(date, ToDateParser.toDate("316", "ddd"));
 
-        date = new SimpleDateFormat("yyyy-MM-dd").parse("2013-01-29");
-        assertEquals(date, ToDateParser.toDate("113029", "J"));
+        date = ValueTimestamp.parse("2013-01-29");
+        assertEquals(date, ToDateParser.toDate("2456322", "J"));
 
-        if (Locale.getDefault() == Locale.ENGLISH) {
-            date = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss").parse("9999-12-31T23:59:59");
+        if (Locale.getDefault().getLanguage().equals("en")) {
+            date = ValueTimestamp.parse("9999-12-31 23:59:59");
             assertEquals(date, ToDateParser.toDate("31-DEC-9999 23:59:59", "DD-MON-YYYY HH24:MI:SS"));
             assertEquals(date, ToDateParser.toDate("31-DEC-9999 23:59:59", "DD-MON-RRRR HH24:MI:SS"));
-            SimpleDateFormat ymd = new SimpleDateFormat("yyyy-MM-dd");
-            assertEquals(ymd.parse("0001-03-01"), ToDateParser.toDate("1-MAR-0001", "DD-MON-RRRR"));
-            assertEquals(ymd.parse("9999-03-01"), ToDateParser.toDate("1-MAR-9999", "DD-MON-RRRR"));
-            assertEquals(ymd.parse("2000-03-01"), ToDateParser.toDate("1-MAR-000", "DD-MON-RRRR"));
-            assertEquals(ymd.parse("1999-03-01"), ToDateParser.toDate("1-MAR-099", "DD-MON-RRRR"));
-            assertEquals(ymd.parse("0100-03-01"), ToDateParser.toDate("1-MAR-100", "DD-MON-RRRR"));
-            assertEquals(ymd.parse("2000-03-01"), ToDateParser.toDate("1-MAR-00", "DD-MON-RRRR"));
-            assertEquals(ymd.parse("2049-03-01"), ToDateParser.toDate("1-MAR-49", "DD-MON-RRRR"));
-            assertEquals(ymd.parse("1950-03-01"), ToDateParser.toDate("1-MAR-50", "DD-MON-RRRR"));
-            assertEquals(ymd.parse("1999-03-01"), ToDateParser.toDate("1-MAR-99", "DD-MON-RRRR"));
-        }
-    }
-
-    private static void setMonth(Date date, int month) {
-        Calendar c = DateTimeUtils.createGregorianCalendar();
-        c.setTime(date);
-        c.set(Calendar.MONTH, month);
-        date.setTime(c.getTimeInMillis());
+            assertEquals(ValueTimestamp.parse("0001-03-01"), ToDateParser.toDate("1-MAR-0001", "DD-MON-RRRR"));
+            assertEquals(ValueTimestamp.parse("9999-03-01"), ToDateParser.toDate("1-MAR-9999", "DD-MON-RRRR"));
+            assertEquals(ValueTimestamp.parse("2000-03-01"), ToDateParser.toDate("1-MAR-000", "DD-MON-RRRR"));
+            assertEquals(ValueTimestamp.parse("1999-03-01"), ToDateParser.toDate("1-MAR-099", "DD-MON-RRRR"));
+            assertEquals(ValueTimestamp.parse("0100-03-01"), ToDateParser.toDate("1-MAR-100", "DD-MON-RRRR"));
+            assertEquals(ValueTimestamp.parse("2000-03-01"), ToDateParser.toDate("1-MAR-00", "DD-MON-RRRR"));
+            assertEquals(ValueTimestamp.parse("2049-03-01"), ToDateParser.toDate("1-MAR-49", "DD-MON-RRRR"));
+            assertEquals(ValueTimestamp.parse("1950-03-01"), ToDateParser.toDate("1-MAR-50", "DD-MON-RRRR"));
+            assertEquals(ValueTimestamp.parse("1999-03-01"), ToDateParser.toDate("1-MAR-99", "DD-MON-RRRR"));
+        }
+
+        assertEquals(ValueTimestampTimeZone.parse("2000-05-10 10:11:12-08:15"),
+                ToDateParser.toTimestampTz("2000-05-10 10:11:12 -8:15", "YYYY-MM-DD HH24:MI:SS TZH:TZM"));
+        assertEquals(ValueTimestampTimeZone.parse("2000-05-10 10:11:12-08:15"),
+                ToDateParser.toTimestampTz("2000-05-10 10:11:12 GMT-08:15", "YYYY-MM-DD HH24:MI:SS TZR"));
+        assertEquals(ValueTimestampTimeZone.parse("2000-02-10 10:11:12-08"),
+                ToDateParser.toTimestampTz("2000-02-10 10:11:12 US/Pacific", "YYYY-MM-DD HH24:MI:SS TZR"));
+        assertEquals(ValueTimestampTimeZone.parse("2000-02-10 10:11:12-08"),
+                ToDateParser.toTimestampTz("2000-02-10 10:11:12 PST", "YYYY-MM-DD HH24:MI:SS TZD"));
     }
 
     private void testToCharFromDateTime() throws SQLException {