Comments (1)
labianchin
commented on July 18, 2024
No plans yet.
It would be nice if DBeam supported more flexible output formats. A few examples other than Avro could be: Parquet, CSV, Proto, ...
DBeam is build on top of Beam SDK and should support more formats and runners. But so far its main use case has been writing Avro files to GCS via DataflowRunner. Only recently there has been better support for Parquet and other columnar formats on GCS.
I think it is worth to look into supporting Parquet in the coming months or years.
A few open questions when designing parquet support:
- Should there be equivalent JdbcParquetJob, JdbcParquetIO, etc classes?
- Should it be part of dbeam-core? Or a separate package? Or a separate project/repository?
- Can Parquet support be built without the need for parquet-mr and hadoop? Those libraries bring many dependencies, some with vulnerabilities. It would be interesting to see if parquet support could be built using Arrow, some Trino libraries, or something else.
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Related Issues (20)
- --sqlFile not working with PostgreSQL databases HOT 1
- optional table parameter if sql query is specified HOT 2
- allow output to be a bigquery table
- SQLException: Zero date value prohibited HOT 4
- Compilation fails
- Writing output into AWS S3 does not work HOT 6
- Associate Struct (Composite/Complex types) with Record instead of String HOT 2
- Set table and field doc from postgres COMMENT HOT 1
- Handling of unsigned int fields in MySQL HOT 3
- NoClassDefFoundError: com/google/api/client/json/gson/GsonFactory HOT 2
- Support for query HOT 2
- Any support to write Avro back into MySQL or PostGres? HOT 1
- Rewrite tests in JUnit
- Add support for custom WHERE clause to the queries HOT 2
- Support for parallel exports HOT 2
- Support for Java 11
- Incorrect user-supplied Avro schema (--avroSchemaFilePath) causes dbeam to produce invalid avro files.
- Support for "ceiling" filtering/partitioning HOT 3
- Add support for MS SQL Server HOT 2
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