feat: enable native Iceberg reader by default#3819
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andygrove wants to merge 2 commits intoapache:mainfrom
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feat: enable native Iceberg reader by default#3819andygrove wants to merge 2 commits intoapache:mainfrom
andygrove wants to merge 2 commits intoapache:mainfrom
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Change the default value of spark.comet.scan.icebergNative.enabled from false to true, and update documentation to reflect this change.
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|
I would say this issue is blocking for this PR: #3856. |
martin-g
reviewed
Apr 1, 2026
| @@ -140,7 +140,7 @@ object CometConf extends ShimCometConf { | |||
| "Iceberg tables are read directly through native execution, bypassing Spark's " + | |||
| "DataSource V2 API for better performance.") | |||
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https://datafusion.apache.org/comet/user-guide/latest/iceberg.html says that Iceberg support is experimental. Some other config entries mention that they are experimental.
Suggested change
| "DataSource V2 API for better performance.") | |
| "DataSource V2 API for better performance. This feature is experimental.") |
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Which issue does this PR close?
Closes #.
Rationale for this change
The native Iceberg reader has matured enough to be enabled by default, removing the need for users to explicitly opt in via configuration.
What changes are included in this PR?
spark.comet.scan.icebergNative.enabledfromfalsetotrueHow are these changes tested?
Existing Iceberg test suites cover the native reader. This change only flips the default; no new behavior is introduced.