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https://issues.apache.org/jira/browse/PARQUET-2325?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gang Wu resolved PARQUET-2325.
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Resolution: Fixed
> Fix parquet-cli's dictionary subcommand to work with FIXED_LEN_BYTE_ARRAY
> -------------------------------------------------------------------------
>
> Key: PARQUET-2325
> URL: https://issues.apache.org/jira/browse/PARQUET-2325
> Project: Parquet
> Issue Type: Bug
> Components: parquet-cli
> Reporter: Kengo Seki
> Assignee: Kengo Seki
> Priority: Minor
> Fix For: 1.14.0
>
>
> I created a parquet file containing a FIXED_LEN_BYTE_ARRAY column with a
> dictionary:
> {code}
> $ python
> Python 3.10.6 (main, May 29 2023, 11:10:38) [GCC 11.3.0] on linux
> Type "help", "copyright", "credits" or "license" for more information.
> >>> import pyarrow as pa
> >>> import pyarrow.parquet as pq
> >>> tbl = pa.Table.from_arrays([pa.array(["foo", "bar", "baz"],
> >>> type=pa.binary(3))], ["col"])
> >>> pq.write_table(tbl, use_dictionary=True, where='/tmp/example.parquet')
> >>>
> $ java -cp 'target/parquet-cli-1.14.0-SNAPSHOT.jar:target/dependency/*'
> org.apache.parquet.cli.Main pages /tmp/example.parquet
> Column: col
> --------------------------------------------------------------------------------
> page type enc count avg size size rows nulls min / max
> 0-D dict S _ 3 3.00 B 9 B
> 0-1 data S R 3 3.33 B 10 B 0 "0x626172"
> / "0x666F6F"
> {code}
> But the dictionary subcommand doesn't seem to work with that column.
> {code}
> $ java -cp 'target/parquet-cli-1.14.0-SNAPSHOT.jar:target/dependency/*'
> org.apache.parquet.cli.Main dictionary /tmp/example.parquet -c col
> Row group 0 dictionary for "col":
> Argument error: Unknown dictionary type: FIXED_LEN_BYTE_ARRAY
> {code}
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