Heatao opened a new issue, #15060:
URL: https://github.com/apache/iceberg/issues/15060
### Apache Iceberg version
main (development)
### Query engine
Spark
### Please describe the bug 🐞
### Description
Custom snapshot properties set via Spark session config (e.g.,
`spark.sql.iceberg.snapshot-property.custom-key`) are not applied to DELETE
operations, while they work correctly for INSERT, UPDATE, and MERGE operations.
### Expected Behavior
DELETE should respect custom snapshot properties from session config,
consistent with other DML operations.
### Actual Behavior
DELETE operations silently ignore custom snapshot properties.
### Steps to Reproduce
```java
spark.conf().set("spark.sql.iceberg.snapshot-property.my-key", "my-value");
// INSERT works - snapshot has my-key ✅
sql("INSERT INTO table VALUES (1, 'a')");
// DELETE doesn't work - snapshot missing my-key ❌
sql("DELETE FROM table WHERE id = 1");
```
### Root Cause
In SparkTable.deleteFromRowFilter(), the code doesn't call
SparkWriteConf.extraSnapshotMetadata() to apply session properties, unlike
insert/update paths.
### Impact
Users relying on custom snapshot properties for tracking (e.g., audit
trails, job metadata) will have incomplete information for DELETE operations.
### Related
- Feature introduced in #14545
- Affects Spark 4.0 and 4.1
### Willingness to contribute
- [x] I can contribute a fix for this bug independently
- [ ] I would be willing to contribute a fix for this bug with guidance from
the Iceberg community
- [ ] I cannot contribute a fix for this bug at this time
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