beliefer commented on code in PR #43694:
URL: https://github.com/apache/spark/pull/43694#discussion_r1385910298
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala:
##########
@@ -785,17 +786,19 @@ case class Cast(
buildCast[Boolean](_, b => if (b) 1 else 0)
case DateType =>
buildCast[Int](_, d => null)
- case TimestampType if ansiEnabled =>
+ case TimestampType =>
buildCast[Long](_, t => {
val longValue = timestampToLong(t)
if (longValue == longValue.toInt) {
longValue.toInt
} else {
- throw QueryExecutionErrors.castingCauseOverflowError(t, from,
IntegerType)
+ if (ansiEnabled) {
+ throw QueryExecutionErrors.castingCauseOverflowError(t, from,
IntegerType)
+ } else {
+ null
+ }
Review Comment:
Oracle.
`SELECT CAST('2' AS int) FROM DUAL;` output 2.
SELECT CAST(TO_TIMESTAMP('1900-05-05 18:34:56.10', 'YYYY-MM-DD
HH24:MI:SS.FF') AS int) FROM DUAL; output `SQL 错误 [932] [42000]: ORA-00932:
数据类型不一致: 应为 NUMBER, 但却获得 TIMESTAMP`
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala:
##########
@@ -785,17 +786,19 @@ case class Cast(
buildCast[Boolean](_, b => if (b) 1 else 0)
case DateType =>
buildCast[Int](_, d => null)
- case TimestampType if ansiEnabled =>
+ case TimestampType =>
buildCast[Long](_, t => {
val longValue = timestampToLong(t)
if (longValue == longValue.toInt) {
longValue.toInt
} else {
- throw QueryExecutionErrors.castingCauseOverflowError(t, from,
IntegerType)
+ if (ansiEnabled) {
+ throw QueryExecutionErrors.castingCauseOverflowError(t, from,
IntegerType)
+ } else {
+ null
+ }
Review Comment:
Oracle.
`SELECT CAST('2' AS int) FROM DUAL;` output 2.
SELECT CAST(TO_TIMESTAMP('1900-05-05 18:34:56.10', 'YYYY-MM-DD
HH24:MI:SS.FF') AS int) FROM DUAL; output `SQL 错误 [932] [42000]: ORA-00932:
数据类型不一致: 应为 NUMBER, 但却获得 TIMESTAMP`
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