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Kent Yao 9562b26914 [SPARK-29757][SQL] Move calendar interval constants together 
### What changes were proposed in this pull request?
```java
  public static final int YEARS_PER_DECADE = 10;
  public static final int YEARS_PER_CENTURY = 100;
  public static final int YEARS_PER_MILLENNIUM = 1000;

  public static final byte MONTHS_PER_QUARTER = 3;
  public static final int MONTHS_PER_YEAR = 12;

  public static final byte DAYS_PER_WEEK = 7;
  public static final long DAYS_PER_MONTH = 30L;

  public static final long HOURS_PER_DAY = 24L;

  public static final long MINUTES_PER_HOUR = 60L;

  public static final long SECONDS_PER_MINUTE = 60L;
  public static final long SECONDS_PER_HOUR = MINUTES_PER_HOUR * SECONDS_PER_MINUTE;
  public static final long SECONDS_PER_DAY = HOURS_PER_DAY * SECONDS_PER_HOUR;

  public static final long MILLIS_PER_SECOND = 1000L;
  public static final long MILLIS_PER_MINUTE = SECONDS_PER_MINUTE * MILLIS_PER_SECOND;
  public static final long MILLIS_PER_HOUR = MINUTES_PER_HOUR * MILLIS_PER_MINUTE;
  public static final long MILLIS_PER_DAY = HOURS_PER_DAY * MILLIS_PER_HOUR;

  public static final long MICROS_PER_MILLIS = 1000L;
  public static final long MICROS_PER_SECOND = MILLIS_PER_SECOND * MICROS_PER_MILLIS;
  public static final long MICROS_PER_MINUTE = SECONDS_PER_MINUTE * MICROS_PER_SECOND;
  public static final long MICROS_PER_HOUR = MINUTES_PER_HOUR * MICROS_PER_MINUTE;
  public static final long MICROS_PER_DAY = HOURS_PER_DAY * MICROS_PER_HOUR;
  public static final long MICROS_PER_MONTH = DAYS_PER_MONTH * MICROS_PER_DAY;
  /* 365.25 days per year assumes leap year every four years */
  public static final long MICROS_PER_YEAR = (36525L * MICROS_PER_DAY) / 100;

  public static final long NANOS_PER_MICROS = 1000L;
  public static final long NANOS_PER_MILLIS = MICROS_PER_MILLIS * NANOS_PER_MICROS;
  public static final long NANOS_PER_SECOND = MILLIS_PER_SECOND * NANOS_PER_MILLIS;
```
The above parameters are defined in IntervalUtils, DateTimeUtils, and CalendarInterval, some of them are redundant, some of them are cross-referenced.

### Why are the changes needed?
To simplify code, enhance consistency and reduce risks

### Does this PR introduce any user-facing change?

no
### How was this patch tested?

modified uts

Closes #26399 from yaooqinn/SPARK-29757.

Authored-by: Kent Yao <yaooqinn@hotmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2019-11-07 19:48:19 +08:00
..
avro [SPARK-29757][SQL] Move calendar interval constants together 2019-11-07 19:48:19 +08:00
docker [SPARK-28683][BUILD] Upgrade Scala to 2.12.10 2019-09-18 13:30:36 -07:00
docker-integration-tests Revert "Prepare Spark release v3.0.0-preview-rc2" 2019-10-30 17:45:44 -07:00
kafka-0-10 [SPARK-29611][WEBUI] Sort Kafka metadata by the number of messages 2019-11-01 22:46:34 -07:00
kafka-0-10-assembly Revert "Prepare Spark release v3.0.0-preview-rc2" 2019-10-30 17:45:44 -07:00
kafka-0-10-sql [SPARK-29635][SS] Extract base test suites between Kafka micro-batch sink and Kafka continuous sink 2019-11-06 17:08:42 -08:00
kafka-0-10-token-provider Revert "Prepare Spark release v3.0.0-preview-rc2" 2019-10-30 17:45:44 -07:00
kinesis-asl Revert "Prepare Spark release v3.0.0-preview-rc2" 2019-10-30 17:45:44 -07:00
kinesis-asl-assembly Revert "Prepare Spark release v3.0.0-preview-rc2" 2019-10-30 17:45:44 -07:00
spark-ganglia-lgpl [SPARK-29674][CORE] Update dropwizard metrics to 4.1.x for JDK 9+ 2019-11-03 15:13:06 -08:00