[GitHub] spark pull request #18116: [SPARK-20892][SparkR] Add SQL trunc function to S...

[actuaryzhang <gi...@git.apache.org>]

Github user actuaryzhang commented on a diff in the pull request:

    https://github.com/apache/spark/pull/18116#discussion_r118612551
  
    --- Diff: R/pkg/inst/tests/testthat/test_sparkSQL.R ---
    @@ -1404,6 +1404,8 @@ test_that("column functions", {
       c20 <- to_timestamp(c) + to_timestamp(c, "yyyy") + to_date(c, "yyyy")
       c21 <- posexplode_outer(c) + explode_outer(c)
       c22 <- not(c)
    +  c23 <- trunc(c) + trunc(c, "year") + trunc(c, "yyyy") + trunc(c, "yy") +
    --- End diff --
    
    Not sure what this does. Is this the current test for these SQL functions? 


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