diff --git a/presto-docs/src/main/sphinx/connector/iceberg.rst b/presto-docs/src/main/sphinx/connector/iceberg.rst index e4667f6414ab..3bc9bb8a6e32 100644 --- a/presto-docs/src/main/sphinx/connector/iceberg.rst +++ b/presto-docs/src/main/sphinx/connector/iceberg.rst @@ -29,25 +29,28 @@ Configuration Properties The following configuration properties are available: -====================================== ==================================================== -Property Name Description -====================================== ==================================================== -``hive.metastore.uri`` The URI(s) of the Hive metastore. +========================================= ===================================================== +Property Name Description +========================================= ===================================================== +``hive.metastore.uri`` The URI(s) of the Hive metastore. -``iceberg.file-format`` The storage file format for Iceberg tables. +``iceberg.file-format`` The storage file format for Iceberg tables. -``iceberg.compression-codec`` The compression codec to use when writing files. +``iceberg.compression-codec`` The compression codec to use when writing files. -``iceberg.catalog.type`` The catalog type for Iceberg tables. +``iceberg.catalog.type`` The catalog type for Iceberg tables. -``iceberg.catalog.warehouse`` The catalog warehouse root path for Iceberg tables. +``iceberg.catalog.warehouse`` The catalog warehouse root path for Iceberg tables. -``iceberg.catalog.cached-catalog-num`` The number of Iceberg catalogs to cache. +``iceberg.catalog.cached-catalog-num`` The number of Iceberg catalogs to cache. -``iceberg.hadoop.config.resources`` The path(s) for Hadoop configuration resources. +``iceberg.hadoop.config.resources`` The path(s) for Hadoop configuration resources. -``iceberg.max-partitions-per-writer`` The maximum number of partitions handled per writer. -====================================== ==================================================== +``iceberg.max-partitions-per-writer`` The maximum number of partitions handled per writer. + +``iceberg.minimum-assigned-split-weight`` A decimal value in the range (0, 1] used as a minimum + for weights assigned to each split. +========================================= ===================================================== ``hive.metastore.uri`` ^^^^^^^^^^^^^^^^^^^^^^ @@ -114,6 +117,15 @@ The Maximum number of partitions handled per writer. The default is 100. +``iceberg.minimum-assigned-split-weight`` +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +A decimal value in the range (0, 1] used as a minimum for weights assigned to each split. +A low value may improve performance on tables with small files. A higher value may improve +performance for queries with highly skewed aggregations or joins. + +The default is 0.05. + Nessie catalog ^^^^^^^^^^^^^^