gszadovszky commented on a change in pull request #896:
URL: https://github.com/apache/parquet-mr/pull/896#discussion_r618536203
##########
File path: parquet-hadoop/src/main/java/org/apache/parquet/hadoop/Offsets.java
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@@ -68,12 +68,14 @@ public static Offsets getOffsets(SeekableInputStream input,
ColumnChunkMetaData
return new Offsets(firstDataPageOffset, dictionaryPageOffset);
}
- private static long readDictionaryPageSize(SeekableInputStream in, long pos)
throws IOException {
+ private static long readDictionaryPageSize(SeekableInputStream in,
ColumnChunkMetaData chunk) throws IOException {
long origPos = -1;
try {
origPos = in.getPos();
+ in.seek(chunk.getStartingPos());
Review comment:
It is not obvious that one have to search this statements in the
[Encoding
docs](https://github.com/apache/parquet-format/blob/master/Encodings.md#dictionary-encoding-plain_dictionary--2-and-rle_dictionary--8)
but it is there:
> The dictionary page is written first, before the data pages of the column
chunk.
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