maropu commented on a change in pull request #26256: [SPARK-29605][SQL]
Optimize string to interval casting
URL: https://github.com/apache/spark/pull/26256#discussion_r339282987
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/IntervalUtils.scala
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@@ -119,4 +119,168 @@ object IntervalUtils {
case _: IllegalArgumentException => null
}
}
+
+ private object ParseState extends Enumeration {
+ val PREFIX,
+ BEGIN_VALUE,
+ PARSE_SIGN,
+ POSITIVE_VALUE_TO_LONG,
+ NEGATIVE_VALUE_TO_LONG,
+ BEGIN_UNIT_NAME,
+ UNIT_NAME_SUFFIX,
+ END_UNIT_NAME = Value
+ }
+ private final val intervalStr = UTF8String.fromString("interval")
+ private final val yearStr = UTF8String.fromString("year")
+ private final val monthStr = UTF8String.fromString("month")
+ private final val weekStr = UTF8String.fromString("week")
+ private final val dayStr = UTF8String.fromString("day")
+ private final val hourStr = UTF8String.fromString("hour")
+ private final val minuteStr = UTF8String.fromString("minute")
+ private final val secondStr = UTF8String.fromString("second")
+ private final val millisStr = UTF8String.fromString("millisecond")
+ private final val microsStr = UTF8String.fromString("microsecond")
Review comment:
I know you added `final` for performance reasons, but do we have actual
performance diffs of the benchmarks below with/without this `final`? (Just out
of curiosity...
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