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Diffstat (limited to 'docs/sql-programming-guide.md')
| -rw-r--r-- | docs/sql-programming-guide.md | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/docs/sql-programming-guide.md b/docs/sql-programming-guide.md index 448251cfdc..e838a13af7 100644 --- a/docs/sql-programming-guide.md +++ b/docs/sql-programming-guide.md @@ -1376,6 +1376,18 @@ Configuration of Parquet can be done using the `setConf` method on `SparkSession </p> </td> </tr> +<tr> + <td><code>spark.sql.optimizer.metadataOnly</code></td> + <td>true</td> + <td> + <p> + When true, enable the metadata-only query optimization that use the table's metadata to + produce the partition columns instead of table scans. It applies when all the columns scanned + are partition columns and the query has an aggregate operator that satisfies distinct + semantics. + </p> + </td> +</tr> </table> ## JSON Datasets |