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[SPARK-19561][SQL] add int case handling for TimestampType #17200

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JasonMWhite wants to merge 5 commits into from
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[SPARK-19561][SQL] add int case handling for TimestampType #17200

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4238533
cast TimestampType.toInternal output to long
Feb 11, 2017
5b1dd67
replace int function call with long
Feb 16, 2017
a1936af
add TimestampType int handling in EvaluatePython, remove casting to l…
Mar 9, 2017
a198d49
linter
Mar 9, 2017
bee635a
add comment explaining adding Int case handling
Mar 9, 2017
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8 changes: 8 additions & 0 deletions python/pyspark/sql/tests.py
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Expand Up @@ -1435,6 +1435,14 @@ def test_time_with_timezone(self):
self.assertEqual(now, now1)
self.assertEqual(now, utcnow1)

# regression test for SPARK-19561
def test_datetime_at_epoch(self):
epoch = datetime.datetime.fromtimestamp(0)
df = self.spark.createDataFrame([Row(date=epoch)])
first = df.select('date', lit(epoch).alias('lit_date')).first()
self.assertEqual(first['date'], epoch)
self.assertEqual(first['lit_date'], epoch)

def test_decimal(self):
from decimal import Decimal
schema = StructType([StructField("decimal", DecimalType(10, 5))])
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2 changes: 2 additions & 0 deletions sql/core/src/main/scala/org/apache/spark/sql/execution/python/EvaluatePython.scala
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Expand Up @@ -112,6 +112,8 @@ object EvaluatePython {
case (c: Int, DateType) => c

case (c: Long, TimestampType) => c
// Py4J serializes values between MIN_INT and MAX_INT as Ints, not Longs
case (c: Int, TimestampType) => c.toLong

case (c, StringType) => UTF8String.fromString(c.toString)

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