MaxGekk commented on a change in pull request #26079: [SPARK-29369][SQL]
Support string intervals without the `interval` prefix
URL: https://github.com/apache/spark/pull/26079#discussion_r333485581
##########
File path:
common/unsafe/src/main/java/org/apache/spark/unsafe/types/CalendarInterval.java
##########
@@ -73,45 +72,50 @@ private static long toLong(String s) {
* This method is case-insensitive.
*/
public static CalendarInterval fromString(String s) {
- if (s == null) {
- return null;
- }
- s = s.trim();
- Matcher m = p.matcher(s);
- if (!m.matches() || s.compareToIgnoreCase("interval") == 0) {
+ try {
+ return fromCaseInsensitiveString(s);
+ } catch (IllegalArgumentException e) {
return null;
- } else {
- long months = toLong(m.group(1)) * 12 + toLong(m.group(2));
- long microseconds = toLong(m.group(3)) * MICROS_PER_WEEK;
- microseconds += toLong(m.group(4)) * MICROS_PER_DAY;
- microseconds += toLong(m.group(5)) * MICROS_PER_HOUR;
- microseconds += toLong(m.group(6)) * MICROS_PER_MINUTE;
- microseconds += toLong(m.group(7)) * MICROS_PER_SECOND;
- microseconds += toLong(m.group(8)) * MICROS_PER_MILLI;
- microseconds += toLong(m.group(9));
- return new CalendarInterval((int) months, microseconds);
}
}
/**
- * Convert a string to CalendarInterval. Unlike fromString, this method can
handle
+ * Convert a string to CalendarInterval. This method can handle
* strings without the `interval` prefix and throws IllegalArgumentException
* when the input string is not a valid interval.
*
* @throws IllegalArgumentException if the string is not a valid internal.
*/
public static CalendarInterval fromCaseInsensitiveString(String s) {
Review comment:
Let's keep them separate so far. And I will try to write flexible and common
code for parsing string interval that could handle other features found in
https://github.com/apache/spark/pull/26055
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