cloud-fan commented on code in PR #44110:
URL: https://github.com/apache/spark/pull/44110#discussion_r1413748213
##########
sql/api/src/main/scala/org/apache/spark/sql/catalyst/util/SparkDateTimeUtils.scala:
##########
@@ -305,21 +305,32 @@ trait SparkDateTimeUtils {
(segment == 0 && digits >= 4 && digits <= maxDigitsYear) ||
(segment != 0 && digits > 0 && digits <= 2)
}
- if (s == null || s.trimAll().numBytes() == 0) {
+ if (s == null) {
return None
}
+
val segments: Array[Int] = Array[Int](1, 1, 1)
var sign = 1
var i = 0
var currentSegmentValue = 0
var currentSegmentDigits = 0
- val bytes = s.trimAll().getBytes
+ val bytes = s.getBytes
var j = 0
+
+ while (j < bytes.length && UTF8String.isWhitespaceOrISOControl(bytes(j))) {
+ j += 1;
+ }
+
+ if (j == bytes.length) {
+ return None;
+ }
+
if (bytes(j) == '-' || bytes(j) == '+') {
sign = if (bytes(j) == '-') -1 else 1
j += 1
}
- while (j < bytes.length && (i < 3 && !(bytes(j) == ' ' || bytes(j) ==
'T'))) {
+ while (j < bytes.length &&
+ (i < 3 && !(UTF8String.isWhitespaceOrISOControl(bytes(j)) || bytes(j) ==
'T'))) {
Review Comment:
oh is this a behavior change? now not only spaces, but also ISO controls are
allowed in the middle.
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