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TiDB Features




This document lists the features supported in different TiDB versions, including Long-Term Support (LTS) versions and Development Milestone Release (DMR) versions after the latest LTS version.

You can try out TiDB features on TiDB Playground.

Data types, functions, and operators

Indexing and constraints

SQL statements

SQL statements 37.16.56.15.45.35.25.15.04.0
Basic SELECT, INSERT, UPDATE, DELETE, REPLACEYYYYYYYYY
INSERT ON DUPLICATE KEY UPDATEYYYYYYYYY
LOAD DATA INFILEYYYYYYYYY
SELECT INTO OUTFILEYYYYYYYYY
INNER JOIN, LEFT|RIGHT [OUTER] JOINYYYYYYYYY
UNION, UNION ALLYYYYYYYYY
EXCEPT and INTERSECT operatorsYYYYYYYYN
GROUP BY, ORDER BYYYYYYYYYY
Window FunctionsYYYYYYYYY
Common Table Expressions (CTE)YYYYYYYNN
START TRANSACTION, COMMIT, ROLLBACKYYYYYYYYY
EXPLAINYYYYYYYYY
EXPLAIN ANALYZEYYYYYYYYY
User-defined variablesEEEEEEEEE
BATCH [ON COLUMN] LIMIT INTEGER DELETEYYYNNNNNN
BATCH [ON COLUMN] LIMIT INTEGER INSERT/UPDATE/REPLACEYYNNNNNNN
ALTER TABLE ... COMPACTYYENNNNNN
Table LockEEEEEEEEE
TiFlash Query Result MaterializationYENNNNNNN

Advanced SQL features

Data definition language (DDL)

Data definition language (DDL)7.16.56.15.45.35.25.15.04.0
Basic CREATE, DROP, ALTER, RENAME, TRUNCATEYYYYYYYYY
Generated columnsYEEEEEEEE
ViewsYYYYYYYYY
SequencesYYYYYYYYY
Auto incrementYY4YYYYYYY
Auto randomYYYYYYYYY
TTL (Time to Live)YENNNNNNN
DDL algorithm assertionsYYYYYYYYY
Multi-schema change: add columnsYYEEEEEEE
Change column typeYYYYYYYNN
Temporary tablesYYYYYNNNN
Concurrent DDL statementsYYNNNNNNN
Acceleration of ADD INDEX and CREATE INDEXYYNNNNNNN
Metadata lockYYNNNNNNN
FLASHBACK CLUSTERYYNNNNNNN

Transactions

Partitioning

Statistics

Statistics7.16.56.16.05.45.35.25.15.0
CMSketchDisabled by defaultDisabled by defaultDisabled by defaultDisabled by defaultDisabled by defaultDisabled by defaultYYY
HistogramsYYYYYYYYY
Extended statisticsEEEEEEEEE
Statistics feedbackNNDeprecatedDeprecatedDeprecatedEEEE
Automatically update statisticsYYYYYYYYY
Dynamic pruningYYYEEEEEN
Collect statistics for PREDICATE COLUMNSEEEEENNNN
Control the memory quota for collecting statisticsEEENNNNNN
Randomly sample about 10000 rows of data to quickly build statisticsEEEEEEEEE
Lock statisticsEENNNNNNN
Lightweight statistics initializationENNNNNNNN

Security

Data import and export

Data import and export7.16.56.15.45.35.25.15.04.0
Fast Importer (TiDB Lightning)YYYYYYYYY
mydumper logical dumperDeprecatedDeprecatedDeprecatedDeprecatedDeprecatedDeprecatedDeprecatedDeprecatedDeprecated
Dumpling logical dumperYYYYYYYYY
Transactional LOAD DATAY 5YYYYYYYN 6
Database migration toolkit (DM)YYYYYYYYY
TiDB BinlogYYYYYYYYY
Change data capture (CDC)YYYYYYYYY
Stream data to Amazon S3, GCS, Azure Blob Storage, and NFS through TiCDCYENNNNNNN
TiCDC supports bidirectional replication between two TiDB clustersYYNNNNNNN
TiCDC OpenAPI v2YNNNNNNNN

Management, observability, and tools


  1. TiDB incorrectly treats latin1 as a subset of utf8. See TiDB #18955 for more details.
  2. Starting from v6.5.0, the expression indexes created on the functions listed by the tidb_allow_function_for_expression_index system variable have been tested and can be used in production environments, and more functions will be supported in the future releases. For functions not listed by this variable, the corresponding expression indexes are not recommended for use in production environments. See expression indexes for details.
  3. See Statement Reference for a full list of SQL statements supported.
  4. Starting from v6.4.0, TiDB supports high-performance and globally monotonic AUTO_INCREMENT columns
  5. For TiDB v4.0, the LOAD DATA transaction does not guarantee atomicity.
  6. For TiDB v7.0.0, the new parameter FIELDS DEFINED NULL BY and support for importing data from S3 and GCS are experimental features.

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