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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

Data types, functions, and operators8.48.38.28.17.57.16.56.15.45.35.25.1
Numeric typesYYYYYYYYYYYY
Date and time typesYYYYYYYYYYYY
String typesYYYYYYYYYYYY
JSON typeYYYYYYYEEEEE
Vector typesENNNNNNNNNNN
Control flow functionsYYYYYYYYYYYY
String functionsYYYYYYYYYYYY
Numeric functions and operatorsYYYYYYYYYYYY
Date and time functionsYYYYYYYYYYYY
Bit functions and operatorsYYYYYYYYYYYY
Cast functions and operatorsYYYYYYYYYYYY
Encryption and compression functionsYYYYYYYYYYYY
Vector functions and operatorsENNNNNNNNNNN
Information functionsYYYYYYYYYYYY
JSON functionsYYYYYYYEEEEE
Aggregation functionsYYYYYYYYYYYY
Window functionsYYYYYYYYYYYY
Miscellaneous functionsYYYYYYYYYYYY
OperatorsYYYYYYYYYYYY
Character sets and collations 1YYYYYYYYYYYY
User-level lockYYYYYYYYNNNN

Indexing and constraints

SQL statements

SQL statements 38.48.38.28.17.57.16.56.15.45.35.25.1
Basic SELECT, INSERT, UPDATE, DELETE, REPLACEYYYYYYYYYYYY
INSERT ON DUPLICATE KEY UPDATEYYYYYYYYYYYY
LOAD DATA INFILEYYYYYYYYYYYY
SELECT INTO OUTFILEYYYYYYYYYYYY
INNER JOIN, LEFT|RIGHT [OUTER] JOINYYYYYYYYYYYY
UNION, UNION ALLYYYYYYYYYYYY
EXCEPT and INTERSECT operatorsYYYYYYYYYYYY
GROUP BY, ORDER BYYYYYYYYYYYYY
GROUP BY modifierYYYYYNNNNNNN
Window FunctionsYYYYYYYYYYYY
Common Table Expressions (CTE)YYYYYYYYYYYY
START TRANSACTION, COMMIT, ROLLBACKYYYYYYYYYYYY
EXPLAINYYYYYYYYYYYY
EXPLAIN ANALYZEYYYYYYYYYYYY
User-defined variablesEEEEEEEEEEEE
BATCH [ON COLUMN] LIMIT INTEGER DELETEYYYYYYYYNNNN
BATCH [ON COLUMN] LIMIT INTEGER INSERT/UPDATE/REPLACEYYYYYYYNNNNN
ALTER TABLE ... COMPACTYYYYYYYENNNN
Table LockEEEEEEEEEEEE
TiFlash Query Result MaterializationYYYYYYENNNNN

Advanced SQL features

Data definition language (DDL)

Data definition language (DDL)8.48.38.28.17.57.16.56.15.45.35.25.1
Basic CREATE, DROP, ALTER, RENAME, TRUNCATEYYYYYYYYYYYY
Generated columnsYYYYYYEEEEEE
ViewsYYYYYYYYYYYY
SequencesYYYYYYYYYYYY
Auto incrementYYYYYYY4YYYYY
Auto randomYYYYYYYYYYYY
TTL (Time to Live)YYYYYYENNNNN
DDL algorithm assertionsYYYYYYYYYYYY
Multi-schema change: add columnsYYYYYYYEEEEE
Change column typeYYYYYYYYYYYY
Temporary tablesYYYYYYYYYYNN
Concurrent DDL statementsYYYYYYYNNNNN
Acceleration of ADD INDEX and CREATE INDEXYYYYYYYNNNNN
Metadata lockYYYYYYYNNNNN
FLASHBACK CLUSTERYYYYYYYNNNNN
Pause/Resume DDLYYYYYNNNNNNN
TiDB Accelerated Table CreationEEEENNNNNNNN
Configure BDR role to replicate DDL statements in BDR modeYYEENNNNNNNN

Transactions

Partitioning

Statistics

Statistics8.48.38.28.17.57.16.56.15.45.35.25.1
CMSketchDisabled by defaultDisabled by defaultDisabled by defaultDisabled by defaultDisabled by defaultDisabled by defaultDisabled by defaultDisabled by defaultDisabled by defaultDisabled by defaultYY
HistogramsYYYYYYYYYYYY
Extended statisticsEEEEEEEEEEEE
Statistics feedbackNNNNNNNDeprecatedDeprecatedEEE
Automatically update statisticsYYYYYYYYYYYY
Dynamic pruningYYYYYYYYEEEE
Collect statistics for PREDICATE COLUMNSYYEEEEEEENNN
Control the memory quota for collecting statisticsEEEEEEEENNNN
Randomly sample about 10000 rows of data to quickly build statisticsDeprecatedDeprecatedDeprecatedDeprecatedDeprecatedEEEEEEE
Lock statisticsYYYYYEENNNNN
Lightweight statistics initializationYYYYYENNNNNN
Show the progress of collecting statisticsYYYYYNNNNNNN

Security

Data import and export

Data import and export8.48.38.28.17.57.16.56.15.45.35.25.1
Fast import using TiDB LightningYYYYYYYYYYYY
Fast import using the IMPORT INTO statementYYYYYNNNNNNN
mydumper logical dumperDeprecatedDeprecatedDeprecatedDeprecatedDeprecatedDeprecatedDeprecatedDeprecatedDeprecatedDeprecatedDeprecatedDeprecated
Dumpling logical dumperYYYYYYYYYYYY
Transactional LOAD DATA 5YYYYYYYYYYYY
Database migration toolkit (DM)YYYYYYYYYYYY
TiDB Binlog 6RemovedDeprecatedYYYYYYYYYY
Change data capture (CDC)YYYYYYYYYYYY
Stream data to Amazon S3, GCS, Azure Blob Storage, and NFS through TiCDCYYYYYYENNNNN
TiCDC supports bidirectional replication between two TiDB clustersYYYYYYYNNNNN
TiCDC OpenAPI v2YYYYYYNNNNNN
DM supports migrating MySQL 8.0YYYYEEEENNNN

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. Starting from v7.5.0, TiDB Binlog replication is deprecated. Starting from v8.3.0, TiDB Binlog is fully deprecated. Starting from v8.4.0, TiDB Binlog is removed. For incremental data replication, use TiCDC instead. For point-in-time recovery (PITR), use PITR. Before you upgrade your TiDB cluster to v8.4.0 or later versions, be sure to switch to TiCDC and PITR.
  6. Starting from TiDB v7.0.0, the new parameter FIELDS DEFINED NULL BY and support for importing data from S3 and GCS are experimental features. Starting from v7.6.0, TiDB processes LOAD DATA in transactions in the same way as MySQL. The LOAD DATA statement in a transaction no longer automatically commits the current transaction or starts a new transaction. Moreover, you can explicitly commit or roll back the LOAD DATA statement in a transaction. Additionally, the LOAD DATA statement is affected by the TiDB transaction mode setting (optimistic or pessimistic transaction).