Github user davies commented on a diff in the pull request:
https://github.com/apache/spark/pull/8988#discussion_r41547505
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetIOSuite.scala
---
@@ -99,16 +99,18 @@ class ParquetIOSuite extends QueryTest with ParquetTest
with SharedSQLContext {
withSQLConf(SQLConf.PARQUET_BINARY_AS_STRING.key ->
"true")(checkParquetFile(data))
}
- test("fixed-length decimals") {
- def makeDecimalRDD(decimal: DecimalType): DataFrame =
- sparkContext
- .parallelize(0 to 1000)
- .map(i => Tuple1(i / 100.0))
- .toDF()
- // Parquet doesn't allow column names with spaces, have to add an
alias here
- .select($"_1" cast decimal as "dec")
+ testStandardAndLegacyModes("fixed-length decimals") {
+ def makeDecimalRDD(decimal: DecimalType): DataFrame = {
+ sqlContext
+ .range(1000)
+ // Parquet doesn't allow column names with spaces, have to add an
alias here.
+ // Minus 500 here so that negative decimals are also tested.
+ .select((('id - 500) / 100.0) cast decimal as 'dec)
--- End diff --
nwm, we already specify the precision and scale.
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