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In Trino 436 (Iceberg 1.4.3), write.parquet.compression-codec property is also being set even if the file-format is not parquet. This doesn't happen in Trino 428 (Iceberg 1.3.1), not sure about Trino 431 to Trino 435 (Iceberg 1.4.1)
Is this an intended behavior?
trino> CREATE TABLE test.property_test (c1 integer) WITH (format = 'ORC');
CREATE TABLE
trino> SELECT * FROM test."property_test$properties";
key | value
---------------------------------+-------
write.format.default | ORC
write.parquet.compression-codec | zstd
(2 rows)
trino> CREATE TABLE test.property_test (c1 integer) WITH (format = 'AVRO');
CREATE TABLE
trino> SELECT * FROM test."property_test$properties";
key | value
---------------------------------+-------
write.format.default | AVRO
write.parquet.compression-codec | zstd
(2 rows)
This is not a bug of Trino Iceberg connector. It should be fixed in Iceberg library though they probably won't fix it, though. apache/iceberg#9503 (comment)
In Trino 436 (Iceberg 1.4.3),
write.parquet.compression-codec
property is also being set even if the file-format is not parquet. This doesn't happen in Trino 428 (Iceberg 1.3.1), not sure about Trino 431 to Trino 435 (Iceberg 1.4.1)Is this an intended behavior?
Ref:
apache/iceberg#8593 (comment)
https://github.com/trinodb/trino/pull/19434/files#diff-f5cd96d1ec33fae497df9613afcefff034f01c99adf961e927ccd76e637c7b81R4707
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