Release 2.1.11

Behavior Changes

• time_series_max_tablet_version_num controls the maximum number of versions for tables using the time - series compaction strategy. #51371
• Fixed the issue where the HDFS root_path did not take effect during hot - cold tiering. #48441
• In the new optimizer (Nereids), when the depth or width of an expression in a query exceeds the threshold limit, the query will not fall back to the old optimizer regardless of whether the fallback has started. #52431
• Unified the name checking rules for enabling or disabling unicode names. Now, the non - unicode name rules are a strict subset of the unicode name rules. #53264

New Features

Query Execution Engine

• Introduced the system table routine_load_job to view information about routine load jobs.#48963

Query Optimizer

• Supported MySQL's GROUP BY roll - up syntax GROUP BY ... WITH ROLLUP. #51978

Improvements

Query Optimizer

• Optimized the performance of collecting statistical information on aggregate model tables and primary key model MOR tables. #51675

Asynchronous Materialized View

• Optimized the planning performance of transparent rewriting. #51309
• Optimized the refresh performance. #51493

Bug Fixes

Data Loading

• Fixed the problem that the display result of show did not meet expectations after altering the attributes of routineload. #53038

Lakehouse Integration

• Fixed the issue of incorrect data reading for Iceberg equality delete in certain cases. #51253
• Fixed the error of Iceberg Hadoop Catalog in the Kerberos environment. #50623 #52149
• Fixed the problem of failed transaction submission when writing to Iceberg tables in the Kerberos environment. #51508
• Fixed the error in transaction submission when writing to Iceberg tables. #52716
• Fixed the error when accessing Hudi tables in the Kerberos environment under certain circumstances. #51713
• SQL Server Catalog supports identifying IDENTITY column information. #51285
• Fixed the issue that Jdbc Catalog tables could not obtain row count information in some cases. #50901
• Optimized the decompression performance of ORC zlib in the x86 environment and fixed potential problems. #51775
• Added indicators related to Parquet/ORC condition filtering and delayed materialization in the Profile. #51248
• Optimized the reading performance of ORC Footer. #51117
• Fixed the problem that Table Valued Function could not read compressed JSON files. #51983
• Fixed the issue of inconsistent metadata caused by concurrent catalog refreshing in some cases. #51787

Index

• Fixed the query error of the inverted index when processing IN predicates containing CAST operations to avoid returning incorrect query results. #50860
• Fixed the memory leak problem of the inverted index in abnormal execution situations. #52747

Semi-structured Data Type

• Fixed the problem that some JSON functions returned incorrect results when dealing with null values.
• Fixed some bugs related to JSON functions. #52543 #51516

Query Optimizer

• Fixed the issue that the query could not continue execution when parsing a string into a date failed. #50900
• Fixed the problem of incorrect constant folding results in individual scenarios. #51738
• Fixed the issue that individual array functions could not be planned normally when encountering null literals as input. #50899
• Fixed the problem that enabling local shuffle might lead to incorrect results in extreme scenarios. #51313 #52871
• Fixed the issue that replace view might cause column information not to be visible when using desc view. #52043
• Fixed the problem that the prepare command might not be executed correctly on non - master FE nodes. #52265

Asynchronous Materialized View

• Fixed the problem that query failure might occur after transparent rewriting when the data type of the base table column changes. #50730
• Fixed the problem of incorrect partition compensation in transparent rewriting in individual scenarios. #51899 #52218

Query Execution Engine

• Fixed the problem that TopN calculation might core dump when encountering variant column types. #52573
• Fixed the problem that the function bitmap_from_base64 would core dump when inputting incorrect data. #53018
• Fixed the problem of some incorrect results of the bitmap_union function when dealing with ultra - large amounts of data. #52033
• Fixed the calculation error of multi_distinct_group_concat when used in window functions. #51875
• Fixed the problem that the array_map function might core dump at extreme values. #51618 #50913
• Fixed the problem of incorrect time zone handling. #51454

Others

• Fixed the inconsistent behavior of multi - statements between the master FE and non - master FE. #52632
• Fixed the error of prepared statements on non - master FE. #48689
• Fixed the problem that the rollup operation might cause CCR interruption. #50830