normanj-bitquill commented on code in PR #3833:
URL: https://github.com/apache/calcite/pull/3833#discussion_r1667195459
##########
core/src/main/java/org/apache/calcite/util/format/postgresql/PostgresqlDateTimeFormatter.java:
##########
@@ -38,90 +45,164 @@ public class PostgresqlDateTimeFormatter {
@SuppressWarnings("TemporalAccessorGetChronoField")
private static final FormatPattern[] FORMAT_PATTERNS = new FormatPattern[] {
new NumberFormatPattern(
- dt -> {
- final int hour = dt.get(ChronoField.HOUR_OF_AMPM);
- return String.format(Locale.ROOT, "%02d", hour == 0 ? 12 : hour);
- },
- "HH12"),
- new NumberFormatPattern(
+ ChronoUnitEnum.HOURS_IN_DAY,
+ 0,
+ 23,
+ 2,
dt -> String.format(Locale.ROOT, "%02d", dt.getHour()),
"HH24"),
new NumberFormatPattern(
+ ChronoUnitEnum.HOURS_IN_HALF_DAY,
+ 1,
+ 12,
+ 2,
dt -> {
final int hour = dt.get(ChronoField.HOUR_OF_AMPM);
return String.format(Locale.ROOT, "%02d", hour == 0 ? 12 : hour);
},
- "HH"),
+ "HH12", "HH"),
new NumberFormatPattern(
+ ChronoUnitEnum.MINUTES_IN_HOUR,
+ 0,
+ 59,
+ 2,
dt -> String.format(Locale.ROOT, "%02d", dt.getMinute()),
"MI"),
new NumberFormatPattern(
+ ChronoUnitEnum.SECONDS_IN_DAY,
+ 0,
+ 24 * 60 * 60 - 1,
+ 5,
dt -> Integer.toString(dt.get(ChronoField.SECOND_OF_DAY)),
- "SSSSS", "SSSS"),
+ "SSSSS"),
new NumberFormatPattern(
+ ChronoUnitEnum.SECONDS_IN_DAY,
+ 0,
+ 9999,
+ 4,
+ dt -> Integer.toString(dt.get(ChronoField.SECOND_OF_DAY)),
+ "SSSS"),
+ new NumberFormatPattern(
+ ChronoUnitEnum.SECONDS_IN_MINUTE,
+ 0,
+ 59,
+ 2,
dt -> String.format(Locale.ROOT, "%02d", dt.getSecond()),
"SS"),
new NumberFormatPattern(
+ ChronoUnitEnum.MILLIS,
+ 0,
+ 999,
+ 3,
dt -> String.format(Locale.ROOT, "%03d",
dt.get(ChronoField.MILLI_OF_SECOND)),
"MS"),
new NumberFormatPattern(
+ ChronoUnitEnum.MICROS,
+ 0,
+ 999_999,
+ 6,
dt -> String.format(Locale.ROOT, "%06d",
dt.get(ChronoField.MICRO_OF_SECOND)),
"US"),
new NumberFormatPattern(
+ ChronoUnitEnum.TENTHS_OF_SECOND,
+ 0,
+ 9,
+ 1,
dt -> Integer.toString(dt.get(ChronoField.MILLI_OF_SECOND) / 100),
"FF1"),
new NumberFormatPattern(
+ ChronoUnitEnum.HUNDREDTHS_OF_SECOND,
+ 0,
+ 99,
+ 2,
dt -> String.format(Locale.ROOT, "%02d",
dt.get(ChronoField.MILLI_OF_SECOND) / 10),
"FF2"),
new NumberFormatPattern(
+ ChronoUnitEnum.THOUSANDTHS_OF_SECOND,
+ 0,
+ 999,
+ 3,
dt -> String.format(Locale.ROOT, "%03d",
dt.get(ChronoField.MILLI_OF_SECOND)),
"FF3"),
new NumberFormatPattern(
+ ChronoUnitEnum.TENTHS_OF_MS,
+ 0,
+ 9_999,
+ 4,
dt -> String.format(Locale.ROOT, "%04d",
dt.get(ChronoField.MICRO_OF_SECOND) / 100),
"FF4"),
new NumberFormatPattern(
+ ChronoUnitEnum.HUNDREDTHS_OF_MS,
+ 0,
+ 99_999,
+ 5,
dt -> String.format(Locale.ROOT, "%05d",
dt.get(ChronoField.MICRO_OF_SECOND) / 10),
"FF5"),
new NumberFormatPattern(
+ ChronoUnitEnum.THOUSANDTHS_OF_MS,
+ 0,
+ 999_999,
+ 6,
dt -> String.format(Locale.ROOT, "%06d",
dt.get(ChronoField.MICRO_OF_SECOND)),
"FF6"),
- new EnumStringFormatPattern(ChronoField.AMPM_OF_DAY, "AM", "PM"),
- new EnumStringFormatPattern(ChronoField.AMPM_OF_DAY, "am", "pm"),
- new EnumStringFormatPattern(ChronoField.AMPM_OF_DAY, "A.M.", "P.M."),
- new EnumStringFormatPattern(ChronoField.AMPM_OF_DAY, "a.m.", "p.m."),
- new NumberFormatPattern(dt -> {
- final String formattedYear = String.format(Locale.ROOT, "%0,4d",
dt.getYear());
- if (formattedYear.length() == 4 && formattedYear.charAt(0) == '0') {
- return "0," + formattedYear.substring(1);
- } else {
- return formattedYear;
- }
- }, "Y,YYY") {
- @Override protected String trimLeadingZeros(String value) {
- return value;
- }
- },
- new NumberFormatPattern(
+ new EnumStringFormatPattern(
+ ChronoUnitEnum.HALF_DAYS,
+ ChronoField.AMPM_OF_DAY,
+ "AM", "PM"),
+ new EnumStringFormatPattern(
+ ChronoUnitEnum.HALF_DAYS,
+ ChronoField.AMPM_OF_DAY,
+ "am", "pm"),
+ new EnumStringFormatPattern(
+ ChronoUnitEnum.HALF_DAYS,
+ ChronoField.AMPM_OF_DAY,
+ "A.M.", "P.M."),
+ new EnumStringFormatPattern(
+ ChronoUnitEnum.HALF_DAYS,
+ ChronoField.AMPM_OF_DAY,
+ "a.m.", "p.m."),
+ new YearWithCommasFormatPattern(),
+ new NumberFormatPattern(
+ ChronoUnitEnum.YEARS,
+ 0,
+ Integer.MAX_VALUE,
+ 4,
dt -> String.format(Locale.ROOT, "%04d", dt.getYear()),
"YYYY"),
new NumberFormatPattern(
+ ChronoUnitEnum.YEARS_ISO_8601,
+ 0,
+ Integer.MAX_VALUE,
+ 4,
dt -> Integer.toString(dt.get(IsoFields.WEEK_BASED_YEAR)),
"IYYY"),
new NumberFormatPattern(
+ ChronoUnitEnum.YEARS_IN_MILLENIA_ISO_8601,
+ 0,
+ Integer.MAX_VALUE,
+ 3,
dt -> {
final String yearString =
String.format(Locale.ROOT, "%03d",
dt.get(IsoFields.WEEK_BASED_YEAR));
return yearString.substring(yearString.length() - 3);
},
"IYY"),
new NumberFormatPattern(
+ ChronoUnitEnum.YEARS_IN_CENTURY_ISO_8601,
+ 0,
+ Integer.MAX_VALUE,
Review Comment:
Turns out that PostgreSQL does not limit this. It will accept 4 digit
numbers.
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