Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/17941#discussion_r115881192
--- Diff: R/pkg/inst/tests/testthat/test_sparkSQL.R ---
@@ -721,6 +721,16 @@ test_that(
expect_true(dropTempView("dfView"))
})
+test_that(
+ "createGlobalTempView() results in a queryable table and sql() results
in a new DataFrame", {
+ df <- read.json(jsonPath)
+ createGlobalTempView(df, "global_table1")
+ newdf <- sql("SELECT * FROM global_temp.global_table1 where name =
'Michael'")
+ expect_is(newdf, "SparkDataFrame")
+ expect_equal(count(newdf), 1)
+ expect_true(dropGlobalTempView("global_table1"))
--- End diff --
I found that global temp tables are now returned by `listTables`. (R is the
same).
```
scala> spark.range(10).createGlobalTempView("t1")
scala> spark.catalog.tableExists("global_temp.t1")
res8: Boolean = true
scala> spark.catalog.listTables().show
+----+--------+-----------+---------+-----------+
|name|database|description|tableType|isTemporary|
+----+--------+-----------+---------+-----------+
+----+--------+-----------+---------+-----------+
```
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