Github user felixcheung commented on a diff in the pull request:
https://github.com/apache/spark/pull/17483#discussion_r109276366
--- Diff: R/pkg/inst/tests/testthat/test_sparkSQL.R ---
@@ -645,16 +645,17 @@ test_that("test tableNames and tables", {
df <- read.json(jsonPath)
createOrReplaceTempView(df, "table1")
expect_equal(length(tableNames()), 1)
- tables <- tables()
+ tables <- listTables()
--- End diff --
right, there are some differences of the output (most notability
catalog.listTables returns a Dataset<Table> - but I'm converting that into a
DataFrame anyway), and I thought list* would be more consistent with other
methods like listColumn, listDatabases()
```
> head(tables("default"))
database tableName isTemporary
1 default json FALSE
Warning message:
'tables' is deprecated.
Use 'listTables' instead.
See help("Deprecated")
> head(listTables("default"))
name database description tableType isTemporary
1 json default <NA> EXTERNAL FALSE
```
If you think it makes sense, we could make `tables` an alias of
`listTables` - it's going to call slightly different code on the Scala side and
there are new columns and one different column name being returned.
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