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Type: bugSomething isn't workingSomething isn't working
Description
Describe the bug, including details regarding any error messages, version, and platform.
Component: Flight SQL JDBC Driver
Version: 18.3.0
The flight-sql-jdbc-driver shaded JAR does not include compression support, causing connection failures when the Flight SQL server sends compressed IPC streams using ZSTD or LZ4 compression.
Expected Behavior
The JDBC driver should be able to handle compressed IPC streams from Flight SQL servers, similar to how the direct Flight SQL client (flight-sql artifact) handles them.
Actual Behavior
Connection fails with one of these errors depending on compression type used by server:
ZSTD compression:
java.lang.IllegalArgumentException: Please add arrow-compression module to use CommonsCompressionFactory for ZSTD
at org.apache.arrow.driver.jdbc.shaded.org.apache.arrow.vector.compression.NoCompressionCodec$Factory.createCodec(NoCompressionCodec.java:63)
LZ4 compression:
Arrow error: Invalid argument error: lz4 IPC compression requires the lz4 feature
Steps to Reproduce
- Set up a Flight SQL server that uses compression (ZSTD or LZ4)
- Try to connect using the JDBC driver:
String url = "jdbc:arrow-flight-sql://localhost:5127?useEncryption=false";
Connection conn = DriverManager.getConnection(url);
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT * FROM table");
// Fails with compression error
Workaround
Currently, either:
- Disable compression on the server side, OR
- Use the direct Flight SQL client API (
flight-sqlandflight-coreartifacts) instead of JDBC
Additional Context
- Direct Flight SQL client works fine with compression
- This affects any Flight SQL server that enables compression by default
- JDBC drivers should be able to handle all protocol features transparently
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Type: bugSomething isn't workingSomething isn't working