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CHANGELOG.md

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Tea release 1.79.0, 2025-02-05

Improvements

  • [Samovar] Improve wait_before_processing parameter

Tea release 1.78.0, 2025-01-20

Bug Fix

  • [Samovar] Fix samovar without sync phase

Tea release 1.77.2, 2025-01-13

Bug Fix

  • Fix segfault when rescan happens

Tea release 1.77.1, 2025-12-17

Improvements

  • [Teapotless][Samovar] Add file limit for distributed metadata parsing

Tea release 1.77.0, 2025-12-15

Improvements

  • [Teapotless][Samovar] Optimize position delete pruning

Bug Fix

  • [Teapotless][Samovar] Fix reading empty Iceberg tables when using External table
  • [Samovar] Fix samovar queue name handling

Tea release 1.76.3, 2025-12-05

Improvements

  • [Samovar] Do not update TTL too often

Bug Fix

  • [Samovar] Clear metadata after query completes

Tea release 1.76.2, 2025-12-04

Bug Fix

  • [Samovar] Return metadata filtering

Tea release 1.76.1, 2025-12-03

Improvements

  • [Samovar] Batch data files before pushing to Redis

Bug Fix

  • [Samovar] Ignore deleted files when using distributed metadata processing

Tea release 1.76.0, 2025-12-02

Improvements

  • [Samovar] Implement distributed metadata processing for large tables
  • [Samovar] Do not block the coordinator (as a writer) during the sync phase

Tea release 1.75.0, 2025-11-18

Improvements

  • [Teapotless][Samovar] Improve dangling positional delete pruning
  • [Samovar] Sleep before processing for large slice numbers
  • [Samovar] Make initial synchronization timeouts configurable

Tea release 1.74.1, 2025-11-10

Bug Fix

  • Fix reading float4 values in tables with float8 type

Tea release 1.74.0, 2025-11-05

Improvements

  • [Samovar] Add jitter
  • [Samovar] Static balancing for small tables
  • [Samovar] Make initial synchronization configurable

Tea release 1.73.0, 2025-10-28

Improvements

  • [Samovar] Handle cancel command when reading metadata
  • Make arrow batch size adaptive

Tea release 1.72.3, 2025-09-29

Improvements

  • Make arrow batch size configurable

Tea release 1.72.2, 2025-09-23

Improvements

  • Set the content type to 'application/gzip' when uploading the artifact

Tea release 1.72.1, 2025-09-22

Tea release 1.72.0, 2025-09-18

Improvements

  • [Teapotless][Samovar] Skip dangling positional delete files

Bug Fix

  • Fix LIKE function for strings with \n character

Tea release 1.71.2, 2025-09-11

Improvements

  • Recreate UDF in tea schema

Tea release 1.71.1, 2025-09-09

Improvements

  • Fix downgrade/upgrade on gp5

Tea release 1.71.0, 2025-09-08

Improvements

  • Implement UDF to get primitive metrics from Iceberg tables

Tea release 1.70.0, 2025-08-25

Improvements

  • Improve reading in case filter skips all rows in row group
  • [Teapotless][Samovar] Improve metadata reading for queries without filter
  • [Teapotless][Samovar] Improve metadata reading for queries with partition filter

Bug Fix

  • Fix 'prefetch' mode

Tea release 1.69.0, 2025-08-05

Improvements

  • Validate profile to tables mapping
  • [Samovar] Remove fallback logic when it is redundant
  • [Samovar] Improve reading partitioned table with deletes
  • [Samovar] Log samovar metrics
  • [Samovar] Improve TTL setting for keys

Tea release 1.68.0, 2025-07-25

Improvements

  • Log metadata access type
  • Return error in case some segments use teapot and some segments use samovar
  • Support overriding profile in tea-config.json

Tea release 1.67.0, 2025-07-10

Improvements

  • Skip row groups in positional deletes when possible
  • Speed up metadata reading for queries without filter
  • Support coalesce expression in filters

Tea release 1.66.0, 2025-06-03

Improvements

  • [Teapot] Improve delete files reading (do not reopen them if possible)
  • [Teapotless][Samovar] Support comparison of different temporal types in min/max filter
  • Validate schema of config in JSON format

Bug Fix

  • Fix potential bug if 'prefetch' is enabled

Backward Incompatible Change

  • Do not support config in ini format anymore

Tea release 1.65.0, 2025-05-19

Improvements

  • [Teapotless][Samovar] Improve Iceberg metadata handling (make less copies)

Tea release 1.64.0, 2025-04-04

Improvements

  • [Teapotless][Samovar] Apply positional delete files according to referenced_data_file if set
  • [Teapotless][Samovar] Apply metadata filter as early as possible
  • [Teapot] Improve teapot error messages
  • Improve error messages about types incompatibility between greenplum and iceberg

Tea release 1.63.6, 2025-04-02

Bug Fix

  • [Teapotless][Samovar] Fix incorrect metadata reading when iceberg manifest file contains at least two entries

Tea release 1.63.5, 2025-03-27

Improvements

  • [Samovar] Possibility to choose coordinator from all segments instead of segment 0
  • Annotated logs with actual timestamps

Tea release 1.63.4, 2025-03-25

Bug Fix

  • [Samovar] Fix Int32 overflow when parquet files are larger than 2GB
  • [Samovar] Fix Positional delete stream error
  • [Samovar] Fix Extra reading from hms and s3

Improvements

  • [Samovar] Change default policy in splitting tasks

Tea release 1.63.3, 2025-03-20

Bug Fix

  • [Samovar] Fix Backoff limit exceeded

Tea release 1.63.1, 2025-03-14

Bug Fix

  • [Teapotless] Fix logical type validation for 'day' transform

Tea release 1.63.0, 2025-03-11

Bug Fix

  • [Teapot] Fix 'connection attempt timed out before receiving SETTINGS frame'
  • [Samovar] Fix exponential backoff
  • [Samovar] Abort request if connection was broken while loading task from queue

New Feature

  • [Teapotless][Samovar] Use partitioning info from iceberg for applying delete files

Improvements

  • Unify metadata access methods
  • [Teapotless][Samovar] Decrease metadata size via encoding filenames
  • [Teapotless][Samovar] Decrease metadata memory consumption via discarding unnecessary meta
  • [Teapotless][Samovar] Measure iceberg metrics
  • [Samovar] Measure samovar metrics
  • [Samovar] Make samovar logs more verbose

Tea release 1.62.1, 2025-02-18

Bug Fix

  • Fix incorrect missing RowGroup::file_offset handling

Tea release 1.62.0, 2025-02-13

New Feature

  • Implement filters on iceberg metadata level
  • Support config in JSON format
  • Add config validator

Tea release 1.61.2, 2025-02-06

Bug Fix

  • Make uuid work without mac address

Tea release 1.61.1, 2025-02-04

Backward Incompatible Change

  • Improve endpoints handling in config

Tea release 1.61.0, 2025-01-31

Bug Fix

  • Fix missing positional delete file handling
  • Fix processing order for PlannedMetadata
  • Do not depend on order of AnnotatedDataEntry in Reader::Advance

New Feature

  • Add flag for enabling postfilter on gp
  • Configure access to meta via .cfg file
  • Add parameter 'json_max_message_size_on_master'
  • Add fallback for HMS

Improvements

  • Make filters more usable
  • Balance reading iceberg data entries by split offsets

Tea release 1.60.1, 2025-01-27

Bug Fix

  • Handle missing positional delete file

Tea release 1.60.0, 2025-01-20

Backward Incompatible Change

  • Enable use_row_filter option for FDW by default

Bug Fix

  • Handle missing column in equality delete file

New Feature

  • CP1251 substitutor for Json columns
  • Support row-group filter for CASE

Experimental Feature

  • Add filter_ignored_op_exprs and filter_ignored_func_exprs parameteres
  • Add prefetch parameter

Tea release 1.59.0, 2024-12-27

Backward Incompatible Change

  • Drop support for upgrades from Tea before 1.56.2
  • Add CREATE SERVER tea_server ... to extension SQL scripts

Bug Fix

  • Fix 'Corrupt snappy compressed data'
  • Fix float inconsistency with GP
  • Use bankers rounding

New Feature

Improvement

  • Make TeaContext safer
  • Make logger thread-safe
  • Build partial RowGroupFilter for and/or
  • Set default grpc_max_message_size to 16MB

Tea release 1.58.2, 2024-12-18

New Feature

  • Support bytea and bytea[]