Index: ql/src/java/org/apache/hadoop/hive/ql/io/RCFile.java =================================================================== --- ql/src/java/org/apache/hadoop/hive/ql/io/RCFile.java (revision 1125883) +++ ql/src/java/org/apache/hadoop/hive/ql/io/RCFile.java (working copy) @@ -61,7 +61,7 @@ * RCFiles, short of Record Columnar File, are flat files * consisting of binary key/value pairs, which shares much similarity with * SequenceFile. - * + * * RCFile stores columns of a table in a record columnar way. It first * partitions rows horizontally into row splits. and then it vertically * partitions each row split in a columnar way. RCFile first stores the meta @@ -75,7 +75,7 @@ * RCFile provides {@link Writer}, {@link Reader} and classes for * writing, reading respectively. *

- * + * *

* RCFile stores columns of a table in a record columnar way. It first * partitions rows horizontally into row splits. and then it vertically @@ -83,21 +83,21 @@ * data of a row split, as the key part of a record, and all the data of a row * split as the value part. *

- * + * *

* RCFile compresses values in a more fine-grained manner then record level * compression. However, It currently does not support compress the key part * yet. The actual compression algorithm used to compress key and/or values can * be specified by using the appropriate {@link CompressionCodec}. *

- * + * *

* The {@link Reader} is used to read and explain the bytes of RCFile. *

- * + * *

RCFile Formats

- * - * + * + * * * - * + * *
RCFile Format
* * * - * + * */ public class RCFile { @@ -174,7 +174,7 @@ /** * KeyBuffer is the key of each record in RCFile. Its on-disk layout is as * below: - * + * *