com.facebook.presto.hive.s3select

Class S3SelectPushdown

java.lang.Object

com.facebook.presto.hive.s3select.S3SelectPushdown

public class S3SelectPushdown
extends Object

S3SelectPushdown uses Amazon S3 Select to push down queries to Amazon S3. This allows Presto to retrieve only a subset of data rather than retrieving the full S3 object thus improving Presto query performance.

Method Summary

Modifier and Type	Method and Description
static boolean	isCompressionCodecSupported(org.apache.hadoop.mapred.InputFormat inputFormat, org.apache.hadoop.fs.Path path)
static boolean	shouldEnablePushdownForTable(com.facebook.presto.spi.ConnectorSession session, com.facebook.presto.hive.metastore.Table table, String path, Optional<com.facebook.presto.hive.metastore.Partition> optionalPartition)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

isCompressionCodecSupported

public static boolean isCompressionCodecSupported(org.apache.hadoop.mapred.InputFormat inputFormat,
                                                  org.apache.hadoop.fs.Path path)

shouldEnablePushdownForTable

public static boolean shouldEnablePushdownForTable(com.facebook.presto.spi.ConnectorSession session,
                                                   com.facebook.presto.hive.metastore.Table table,
                                                   String path,
                                                   Optional<com.facebook.presto.hive.metastore.Partition> optionalPartition)