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author | anabranch <wac.chambers@gmail.com> | 2017-02-07 15:50:30 +0100 |
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committer | Herman van Hovell <hvanhovell@databricks.com> | 2017-02-07 15:50:30 +0100 |
commit | 7a7ce272fe9a703f58b0180a9d2001ecb5c4b8db (patch) | |
tree | 4a2533e6d7dcc2e38d62db64f87634a15f3e2439 /R/pkg/inst/tests/testthat/test_sparkSQL.R | |
parent | 6ed285c68fee451c45db7b01ca8ec1dea2efd479 (diff) | |
download | spark-7a7ce272fe9a703f58b0180a9d2001ecb5c4b8db.tar.gz spark-7a7ce272fe9a703f58b0180a9d2001ecb5c4b8db.tar.bz2 spark-7a7ce272fe9a703f58b0180a9d2001ecb5c4b8db.zip |
[SPARK-16609] Add to_date/to_timestamp with format functions
## What changes were proposed in this pull request?
This pull request adds two new user facing functions:
- `to_date` which accepts an expression and a format and returns a date.
- `to_timestamp` which accepts an expression and a format and returns a timestamp.
For example, Given a date in format: `2016-21-05`. (YYYY-dd-MM)
### Date Function
*Previously*
```
to_date(unix_timestamp(lit("2016-21-05"), "yyyy-dd-MM").cast("timestamp"))
```
*Current*
```
to_date(lit("2016-21-05"), "yyyy-dd-MM")
```
### Timestamp Function
*Previously*
```
unix_timestamp(lit("2016-21-05"), "yyyy-dd-MM").cast("timestamp")
```
*Current*
```
to_timestamp(lit("2016-21-05"), "yyyy-dd-MM")
```
### Tasks
- [X] Add `to_date` to Scala Functions
- [x] Add `to_date` to Python Functions
- [x] Add `to_date` to SQL Functions
- [X] Add `to_timestamp` to Scala Functions
- [x] Add `to_timestamp` to Python Functions
- [x] Add `to_timestamp` to SQL Functions
- [x] Add function to R
## How was this patch tested?
- [x] Add Functions to `DateFunctionsSuite`
- Test new `ParseToTimestamp` Expression (*not necessary*)
- Test new `ParseToDate` Expression (*not necessary*)
- [x] Add test for R
- [x] Add test for Python in test.py
Please review http://spark.apache.org/contributing.html before opening a pull request.
Author: anabranch <wac.chambers@gmail.com>
Author: Bill Chambers <bill@databricks.com>
Author: anabranch <bill@databricks.com>
Closes #16138 from anabranch/SPARK-16609.
Diffstat (limited to 'R/pkg/inst/tests/testthat/test_sparkSQL.R')
-rw-r--r-- | R/pkg/inst/tests/testthat/test_sparkSQL.R | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/R/pkg/inst/tests/testthat/test_sparkSQL.R b/R/pkg/inst/tests/testthat/test_sparkSQL.R index 418f128ce8..233a20c3d3 100644 --- a/R/pkg/inst/tests/testthat/test_sparkSQL.R +++ b/R/pkg/inst/tests/testthat/test_sparkSQL.R @@ -1237,6 +1237,7 @@ test_that("column functions", { c17 <- cov(c, c1) + cov("c", "c1") + covar_samp(c, c1) + covar_samp("c", "c1") c18 <- covar_pop(c, c1) + covar_pop("c", "c1") c19 <- spark_partition_id() + c20 <- to_timestamp(c) + to_timestamp(c, "yyyy") + to_date(c, "yyyy") # Test if base::is.nan() is exposed expect_equal(is.nan(c("a", "b")), c(FALSE, FALSE)) |