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[performance](Nereids): avoid use getStringValue() in getTimeFormatter() (#27625)

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Original `getTimeFormatter()` will convert `long` to `string`, and then parse `string` to `int`.
This commit is contained in:
jakevin
2023-11-27 21:08:32 +08:00
committed by GitHub
parent c7b9a32e3e
commit 646f1ea087
1 changed files with 7 additions and 15 deletions
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22
fe/fe-core/src/main/java/org/apache/doris/analysis/DateLiteral.java
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@ -1094,25 +1094,17 @@ public class DateLiteral extends LiteralExpr {
}
public LocalDateTime getTimeFormatter() {
TemporalAccessor accessor;
if (type.equals(Type.DATE) || type.equals(Type.DATEV2)) {
accessor = DATE_FORMATTER.parse(getStringValue());
return LocalDateTime.of((int) this.year, (int) this.month, (int) this.day, 0, 0, 0);
} else if (type.isDatetimeV2()) {
accessor = DATE_TIME_FORMATTER_TO_MICRO_SECOND.parse(getStringValue());
return LocalDateTime.of((int) this.year, (int) this.month, (int) this.day, (int) this.hour,
(int) this.minute,
(int) this.second, (int) this.microsecond * 1000);
} else {
accessor = DATE_TIME_FORMATTER.parse(getStringValue());
return LocalDateTime.of((int) this.year, (int) this.month, (int) this.day, (int) this.hour,
(int) this.minute,
(int) this.second);
}
final int year = accessor.get(ChronoField.YEAR);
final int month = accessor.get(ChronoField.MONTH_OF_YEAR);
final int dayOfMonth = accessor.get(ChronoField.DAY_OF_MONTH);
final int hour = getOrDefault(accessor, ChronoField.HOUR_OF_DAY, 0);
final int minute = getOrDefault(accessor, ChronoField.MINUTE_OF_HOUR, 0);
final int second = getOrDefault(accessor, ChronoField.SECOND_OF_MINUTE, 0);
final int microSeconds = getOrDefault(accessor, ChronoField.MICRO_OF_SECOND, 0);
// LocalDateTime of(int year, int month, int dayOfMonth, int hour, int minute,
// int second, int nanoOfSecond)
return LocalDateTime.of(year, month, dayOfMonth, hour, minute, second, microSeconds * 1000);
}
public DateLiteral plusYears(long year) throws AnalysisException {