Better float/double cases for casting tests #1781
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Signed-off-by: sperlingxx <lovedreamf@gmail.com>
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| @@ -425,6 +383,14 @@ class CastOpSuite extends GpuExpressionTestSuite { | |||
| col("c1").cast(FloatType)) | |||
| } | |||
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| ignore("overflow double strings") { | |||
| testSparkResultsAreEqual("overflow double strings", badDoubleStringsDf, | |||
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badDoubleStringsDf is not as comprehensive as I would like it to be. The values in it are big enough to force an overflow, but there are still a number of corner cases where according to rapidsai/cudf#5225 are not being covered. The patch to fix it rapidsai/cudf#7410 is not in and not working 100% either in these same overflow cases. I am happy to have these go in as it, but I would like to see a follow on issue to cover the corner cases that are missing, and have a comment in badDoubleStringsDf pointing to it. Would be good to look at the float one too and make sure it is also not suffering from the same issue.
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Hi @revans2, I tried with many other similar (slightly overflow) cases. And I found GPU can produce correct results for almost all of them, except some special cases included in badDoubleStringsDf.
For float type, I failed to find any mismatching case.
For double type, I only found numbers within range [1.79769313486231581E308, 1.797693134862316E308) produce inconsistent results with spark.
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@razajafri you filed the original bug about casting from string to double. Could you take a look at this PR too? |
| @@ -1131,14 +1131,16 @@ trait SparkQueryCompareTestSuite extends FunSuite with Arm { | |||
| "9.8e5").toDF("c0") | |||
| } | |||
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| def badFloatStringsDf(session: SparkSession): DataFrame = { | |||
| def invalidFloatStringsDf(session: SparkSession): DataFrame = { | |||
| import session.sqlContext.implicits._ | |||
| Seq(("A", "null"), ("1.3", "43.54")).toDF("c0", "c1") | |||
| } | |||
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| def badDoubleStringsDf(session: SparkSession): DataFrame = { | |||
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nit: for consistency may be this should be renamed to invalidDoubleStringsDf
Just one nit otherwise LGTM |
* enhance float/double cases for casting tests Signed-off-by: sperlingxx <lovedreamf@gmail.com> * continue * code clean * code clean * fix typo * fix typo * some updates * fix typo
* enhance float/double cases for casting tests Signed-off-by: sperlingxx <lovedreamf@gmail.com> * continue * code clean * code clean * fix typo * fix typo * some updates * fix typo
This pull request is to address issue #1764. And current PR also includes some code clean work .