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[SPARK-32424][SQL] Fix silent data change for timestamp parsing if ov…
…erflow happens ### What changes were proposed in this pull request? When using `Seconds.toMicros` API to convert epoch seconds to microseconds, ```scala /** * Equivalent to * {link #convert(long, TimeUnit) MICROSECONDS.convert(duration, this)}. * param duration the duration * return the converted duration, * or {code Long.MIN_VALUE} if conversion would negatively * overflow, or {code Long.MAX_VALUE} if it would positively overflow. */ ``` This PR change it to `Math.multiplyExact(epochSeconds, MICROS_PER_SECOND)` ### Why are the changes needed? fix silent data change between 3.x and 2.x ``` ~/Downloads/spark/spark-3.1.0-SNAPSHOT-bin-20200722 bin/spark-sql -S -e "select to_timestamp('300000', 'y');" +294247-01-10 12:00:54.775807 ``` ``` kentyaohulk ~/Downloads/spark/spark-2.4.5-bin-hadoop2.7 bin/spark-sql -S -e "select to_timestamp('300000', 'y');" 284550-10-19 15:58:1010.448384 ``` ### Does this PR introduce _any_ user-facing change? Yes, we will raise `ArithmeticException` instead of giving the wrong answer if overflow. ### How was this patch tested? add unit test Closes #29220 from yaooqinn/SPARK-32424. Authored-by: Kent Yao <yaooqinn@hotmail.com> Signed-off-by: Wenchen Fan <wenchen@databricks.com>
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9 changes: 9 additions & 0 deletions
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sql/core/src/test/resources/sql-tests/inputs/datetime-parsing-invalid.sql
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28 changes: 28 additions & 0 deletions
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sql/core/src/test/resources/sql-tests/inputs/datetime-parsing.sql
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55 changes: 54 additions & 1 deletion
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sql/core/src/test/resources/sql-tests/results/datetime-parsing-invalid.sql.out
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sql/core/src/test/resources/sql-tests/results/datetime-parsing-legacy.sql.out
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