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Diffstat (limited to 'docs')
| -rw-r--r-- | docs/sql-programming-guide.md | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/docs/sql-programming-guide.md b/docs/sql-programming-guide.md index e59c327915..6287e2be95 100644 --- a/docs/sql-programming-guide.md +++ b/docs/sql-programming-guide.md @@ -526,6 +526,11 @@ By default `saveAsTable` will create a "managed table", meaning that the locatio be controlled by the metastore. Managed tables will also have their data deleted automatically when a table is dropped. +Currently, `saveAsTable` does not expose an API supporting the creation of an "External table" from a `DataFrame`, +however, this functionality can be achieved by providing a `path` option to the `DataFrameWriter` with `path` as the key +and location of the external table as its value (String) when saving the table with `saveAsTable`. When an External table +is dropped only its metadata is removed. + ## Parquet Files [Parquet](http://parquet.io) is a columnar format that is supported by many other data processing systems. |