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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,101 @@ | ||
| --- | ||
| title: "Implementation status" | ||
| linkTitle: "Implementation status" | ||
| weight: 8 | ||
| --- | ||
| ### Physical types | ||
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| | Data type | C++ | Java | Go | Rust | | ||
| | ----------------------------------------- | ----- | ------ | ----- | ----- | | ||
| | BOOLEAN | | | | | | ||
| | INT32 | | | | | | ||
| | INT64 | | | | | | ||
| | INT96 | | | | | | ||
| | FLOAT | | | | | | ||
| | DOUBLE | | | | | | ||
| | BYTE_ARRAY | | | | | | ||
| | FIXED_LEN_BYTE_ARRAY | | | | | | ||
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| ### Logical types | ||
|
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| | Data type | C++ | Java | Go | Rust | | ||
| | ----------------------------------------- | ----- | ------ | ----- | ----- | | ||
| | STRING | | | | | | ||
| | ENUM | | | | | | ||
| | UUID | | | | | | ||
| | 8 and 16 bit signed INT | | | | | | ||
| | 8, 16, 32, 64 bit unsigned INT | | | | | | ||
| | DECIMAL (INT32) | | | | | | ||
| | DECIMAL (INT64) | | | | | | ||
| | DECIMAL (BYTE_ARRAY) | | | | | | ||
| | DECIMAL (FIXED_LEN_BYTE_ARRAY) | | | | | | ||
| | DATE | | | | | | ||
| | TIME (INT32) | | | | | | ||
| | TIME (INT64) | | | | | | ||
| | TIMESTAMP (INT32) | | | | | | ||
| | TIMESTAMP (INT64) | | | | | | ||
| | INTERVAL | | | | | | ||
| | JSON | | | | | | ||
| | BSON | | | | | | ||
| | LIST | | | | | | ||
| | MAP | | | | | | ||
| | UNKNOWN | | | | | | ||
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| ### Encoding | ||
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| | Encoding | C++ | Java | Go | Rust | | ||
| | ----------------------------------------- | ----- | ------ | ----- | ----- | | ||
| | PLAIN | | | | | | ||
| | PLAIN_DICTIONARY | | | | | | ||
| | RLE_DICTIONARY | | | | | | ||
| | RLE | | | | | | ||
| | BIT_PACKED | | | | | | ||
| | DELTA_BINARY_PACKED | | | | | | ||
| | DELTA_LENGTH_BYTE_ARRAY | | | | | | ||
| | DELTA_BYTE_ARRAY | | | | | | ||
| | BYTE_STREAM_SPLIT | | | | | | ||
|
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| ### Compression | ||
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| | Compression | C++ | Java | Go | Rust | | ||
| | ----------------------------------------- | ----- | ------ | ----- | ----- | | ||
| | UNCOMPRESSED | | | | | | ||
| | SNAPPY | | | | | | ||
| | GZIP | | | | | | ||
| | LZO | | | | | | ||
| | BROTLI | | | | | | ||
| | LZ4 | | | | | | ||
| | ZSTD | | | | | | ||
| | LZ4_RAW | | | | | | ||
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| ### Other format level features | ||
|
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| | | C++ | Java | Go | Rust | | ||
| | ----------------------------------------- | ----- | ------ | ----- | ----- | | ||
| | xxHash Bloom filters | | | | | | ||
| | bloom filter length | | | | | | ||
| | Statistics min_value, max_value | | | | | | ||
| | Column index | | | | | | ||
| | Offset index | | | | | | ||
| | Modular encryption | | | | | | ||
| | Page CRC32 checksum | | | | | | ||
| | Modular encryption | | | | | | ||
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| ### High level data API-s for parquet feature usage | ||
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| | Format | C++ | Java | Go | Rust | | ||
| | -------------------------------------------- | ----- | ------ | ----- | ----- | | ||
| | Hive-style partitioning | | | | | | ||
| | Partition pruning on the partition column | | | | | | ||
| | External column data | | | | | | ||
| | RowGroup Sorting column | | | | | | ||
| | Read / Write RowGroup metadata and data (1) | | | | | | ||
| | RowGroup pruning using statistics | | | | | | ||
| | Read / Write page metadata and data (2) | | | | | | ||
| | Page pruning using projection pushdown | | | | | | ||
| | Page pruning using statistics | | | | | | ||
| | Page pruning using bloom filter | | | | | | ||
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| * \(1) Ability to construct RowGroup objects from existing RowGroups or raw values (eg. without decoding or decompressing lower level data when read) | ||
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| * \(2) Ability to construct Page objects from existing Pages or raw values (eg. without decoding or decompressing lower level data when read) |