Announcement: JDBCParquetWriter for writing ResultSets to Parquet Files #48819
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nice job |
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Greetings.
Since I want to test/use ClickHouse and did not find anything good for the migration from Oracle and friends, I wrote a small library:
https://manticore-projects.com/JDBCParquetWriter/index.html
https://github.com/manticore-projects/JDBCParquetWriter
Its a first working version, but it seems to get the Type/Column translation right. Also it uses latest Hadoop/Parquet and supersedes a lot of deprecated samples found in the internet.
Feedback will be most appreciated.
I plan to write a "Schema to ClickHouse" method, which exports all tables of a schema into parquet files and provides the ClickHouse specific DDL and
INSERT INTO ... SELECT * FROM read_parquet()
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