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[SPARK-35111][SPARK-35112][SQL][FOLLOWUP] Rename ANSI interval patterns and regexps #32444

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AngersZhuuuu wants to merge 4 commits into from
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[SPARK-35111][SPARK-35112][SQL][FOLLOWUP] Rename ANSI interval patterns and regexps #32444

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09a7479
[SPARK-35111][SQL][FOLLOWUP] Support Cast string to year-month interval
AngersZhuuuu May 5, 2021
915ddaf
Update IntervalUtils.scala
AngersZhuuuu May 7, 2021
3e7fb54
Update IntervalUtils.scala
AngersZhuuuu May 7, 2021
8569d86
Update IntervalUtils.scala
AngersZhuuuu May 8, 2021
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[SPARK-35111][SQL][FOLLOWUP] Support Cast string to year-month interval
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@AngersZhuuuu
AngersZhuuuu committed May 5, 2021
commit 09a7479ef1ca09d9d2c8c4329b1eda5934a0ea39
17 changes: 9 additions & 8 deletions sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/IntervalUtils.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -99,15 +99,16 @@ object IntervalUtils {
result
}

private val yearMonthPattern = "^([+|-])?(\\d+)-(\\d+)$".r
private val yearMonthStringPattern =
"(?i)^(INTERVAL\\s+)([+|-])?(')([+|-])?(\\d+)-(\\d+)(')(\\s+YEAR\\s+TO\\s+MONTH)$".r
private val unquotedYearMonthPattern = "^([+|-])?(\\d+)-(\\d+)$".r
private val quotedYearMonthPattern = (s"^$unquotedYearMonthPattern$$").r
private val yearMonthLiteralPattern =
"(?i)^INTERVAL\\s+([+|-])?'([+|-])?(\\d+)-(\\d+)'\\s+YEAR\\s+TO\\s+MONTH$".r

def castStringToYMInterval(input: UTF8String): Int = {
input.trimAll().toString match {
case yearMonthPattern("-", year, month) => toYMInterval(year, month, -1)
case yearMonthPattern(_, year, month) => toYMInterval(year, month, 1)
case yearMonthStringPattern(_, firstSign, _, secondSign, year, month, _, _) =>
case quotedYearMonthPattern("-", year, month) => toYMInterval(year, month, -1)
case quotedYearMonthPattern(_, year, month) => toYMInterval(year, month, 1)
case yearMonthLiteralPattern(firstSign, secondSign, year, month) =>
(firstSign, secondSign) match {
case ("-", "-") => toYMInterval(year, month, 1)
case ("-", _) => toYMInterval(year, month, -1)
Expand All @@ -128,9 +129,9 @@ object IntervalUtils {
def fromYearMonthString(input: String): CalendarInterval = {
require(input != null, "Interval year-month string must be not null")
input.trim match {
case yearMonthPattern("-", yearStr, monthStr) =>
case quotedYearMonthPattern("-", yearStr, monthStr) =>
new CalendarInterval(toYMInterval(yearStr, monthStr, -1), 0, 0)
case yearMonthPattern(_, yearStr, monthStr) =>
case quotedYearMonthPattern(_, yearStr, monthStr) =>
new CalendarInterval(toYMInterval(yearStr, monthStr, 1), 0, 0)
case _ =>
throw new IllegalArgumentException(
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