cloud-fan commented on a change in pull request #31284:
URL: https://github.com/apache/spark/pull/31284#discussion_r565864134
##########
File path:
sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetIOSuite.scala
##########
@@ -1196,6 +1196,24 @@ class ParquetIOSuite extends QueryTest with ParquetTest
with SharedSparkSession
}
}
}
+
+ test("SPARK-34167: read LongDecimals with precision < 10, VectorizedReader
off") {
+
readParquetFile(testFile("test-data/decimal32-written-as-64-bit.snappy.parquet"),
false) {
+ df => assert(10 == df.collect().length)
+ }
+
readParquetFile(testFile("test-data/decimal32-written-as-64-bit-dict.snappy.parquet"),
false) {
Review comment:
So there is an INT64 field in the parquet file, who is actually an int
decimal? What's its `DecimalMetadata`? What catalyst data type Spark infers
from it?
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