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Client protocol properties
...ue: true Activate support for using uncompressed JSON encoding for spooled segments. protocol.spooling.encoding.json+zstd.enabled# Type: boolean Default value: true Activate support for using JSON encoding with Zstandard compression fo...
Command line interface
...option to configure a different desired encoding, compared to the default on the cluster. The available values are json+zstd (recommended) for JSON with Zstandard compression, and json+lz4 for JSON with LZ4 compression, and json for uncompr...
Delta Lake connector
...delta.compression-codec The compression codec to be used when writing new data files. Possible values are: NONE SNAPPY ZSTD GZIP The equivalent catalog session property is compression_codec. ZSTD delta.max-partitions-per-writer Maximum...
Exchange properties
...ase concurrency and improve network utilization. exchange.compression-codec# Type: string Allowed values: NONE, LZ4, ZSTD Default value: NONE The compression codec to use for File compression and decompression when exchanging data betwe...
General properties
...mpression# Trino uses the aircompressor library to compress and decompress ORC, Parquet, and other files using the LZ4, zstd, Snappy, and other algorithms. The library takes advantage of using embedded, higher performing, native implementat...
Hive connector
...default hive.compression-codec The compression codec to use when writing files. Possible values are NONE, SNAPPY, LZ4, ZSTD, or GZIP. GZIP hive.force-local-scheduling Force splits to be scheduled on the same node as the Hadoop DataNode pr...
Iceberg connector
...PARQUET iceberg.compression-codec The compression codec used when writing files. Possible values are: NONE SNAPPY LZ4 ZSTD GZIP ZSTD iceberg.use-file-size-from-metadata Read file sizes from metadata instead of file system. This propert...
JDBC driver
...er. encoding Set the encoding when using the spooling protocol. Valid values are JSON with Zstandard compression, json+zstd (recommended), JSON with LZ4 compression json+lz4, and uncompressed JSON json. By default, the default encoding con...
Release 0.213
...ORC writer validation percentage so that zero does not result in 100% validation. Fix potential out-of-bounds read for ZSTD on corrupted input. Stop assuming no distinct values when column null fraction statistic is less than 1.0. Treat -1...
Release 314 (7 Jun 2019)
...DEPROPERTIES. (#898) Fix regression that caused ORC bloom filters to be ignored. (#921) Add support for reading LZ4 and ZSTD compressed Parquet data. (#910) Add support for writing ZSTD compressed ORC data. (#910) Add support for configurin...
Release 365 (3 Dec 2021)
...canning files with missing Iceberg IDs. This aligns Trino behavior on migrated files with the Iceberg spec. (#9959) Use ZSTD compression by default. (#10058) Add read-only security option which can be enabled by setting the configuration ic...
Release 391 (22 Jul 2022)
...zed Parquet writer performance. (#13203, #13208) Fix potential failure when creating empty ORC bucket files while using ZSTD compression. (#9775) Fix query failure or potentially incorrect statistics when running concurrent CREATE TABLE AS...
Release 457 (6 Sep 2024)
..._tolerant_execution_adaptive_join_reordering_enabled session property. (#23046) Improve performance for LZ4, Snappy and ZSTD compression and decompression used for exchange spooling with fault-tolerant execution. (#22532) ⚠️ Breaking change...
Release 469 (27 Jan 2025)
...gcs.endpoint property. (#24626) Improve performance of reading from new Delta Lake table data by compressing files with ZSTD by default, instead of the previous SNAPPY. (#17426) Improve performance of queries on tables with large transactio...
Spilling properties
...unspilling a single aggregation operator instance. spill-compression-codec# Type: string Allowed values: NONE, LZ4, ZSTD Default value: NONE The compression codec to use when spilling pages to disk. spill-encryption-enabled# Type: b...