proper support for Kubernetes from the Vitess Operator CRDB Maybe attractive to those that use PostgreSQL databases. Migration to MySQL could be lengthy and costly. Does not have the ecosystem and supporting specific cases. These specific cases include if one would want to create such a database as or from a PostgreSQL database. This involves substantial additional costs, or is impossible to set up with TiDB. TiDB Low Medium Medium Low Compatibility Overall High High Medium Medium Low MySQL Yes Yes Yes No Yes PostgreSQL No No No Yes No Kubernetes Yes Yes Yes* Yes No Ecosystem Guarantee * Not recommended. CONCLUSION

6.2.11 SQL modes TiDB supports most SQL modes: • The compatibility modes, such as ORACLE and POSTGRESQL are parsed but ignored. Compatibility modes are deprecated in MySQL 5.7 and removed in MySQL 8 The number part do not need to be continuous, but must be increasing and zero-padded. The file extension must be *.csv, even if the content is not separated by commas. 164 5.3.1.2 Schema CSV files are Packet Steering (RPS, which can be regarded as the software implementation of RSS), and the RPS extension Re- ceive Flow Steering (RFS). For detailed configuration, see the kernel document. • Software

6.2.12 SQL modes TiDB supports most SQL modes: • The compatibility modes, such as Oracle and PostgreSQL are parsed but ignored. Compatibility modes are deprecated in MySQL 5.7 and removed in MySQL 8 high availability with the implementation of the Raft consensus algorithm. As a columnar storage extension of TiKV, TiFlash repli- cates data from TiKV in real time according to the Raft Learner consensus The number part do not need to be continuous, but must be increasing and zero-padded. The file extension must be *.csv, even if the content is not separated by commas. 185 5.3.1.2 Schema CSV files are

6.2.11 SQL modes TiDB supports most SQL modes: • The compatibility modes, such as ORACLE and POSTGRESQL are parsed but ignored. Compatibility modes are deprecated in MySQL 5.7 and removed in MySQL 8 high availability with the implementation of the Raft consensus algorithm. As a columnar storage extension of TiKV, TiFlash repli- cates data from TiKV in real time according to the Raft Learner consensus The number part do not need to be continuous, but must be increasing and zero-padded. The file extension must be *.csv, even if the content is not separated by commas. 173 5.3.1.2 Schema CSV files are

the requested size of memory usage by code optimization #13827 @BusyJay • Introduce the Raft extension to improve code extensibility #13827 @BusyJay • Support using tikv-ctl to query which Regions are 4.2.13 SQL modes TiDB supports most SQL modes: • The compatibility modes, such as Oracle and PostgreSQL are parsed but ignored. Compatibility modes are deprecated in MySQL 5.7 and removed in MySQL 8 high availability with the implementation of the Raft consensus algorithm. As a columnar storage extension of TiKV, TiFlash repli- cates data from TiKV in real time according to the Raft Learner consensus

execute this statement to compact data after upgrading your cluster to v6.1.0. This statement is an extension of the standard SQL syntax and therefore is compatible with MySQL clients. For scenarios other than 6.2.13 SQL modes TiDB supports most SQL modes: • The compatibility modes, such as Oracle and PostgreSQL are parsed but ignored. Compatibility modes are deprecated in MySQL 5.7 and removed in MySQL 8 high availability with the implementation of the Raft consensus algorithm. As a columnar storage extension of TiKV, TiFlash repli- cates data from TiKV in real time according to the Raft Learner consensus

4.2.13 SQL modes TiDB supports most SQL modes: • The compatibility modes, such as Oracle and PostgreSQL are parsed but ignored. Compatibility modes are deprecated in MySQL 5.7 and removed in MySQL 8 high availability with the implementation of the Raft consensus algorithm. As a columnar storage extension of TiKV, TiFlash repli- cates data from TiKV in real time according to the Raft Learner consensus Code (VS Code) is a lightweight but powerful source code editor. This tutorial uses the SQLTools extension which supports TiDB as an official driver. In this tutorial, you can learn how to connect to your

4.2.13 SQL modes TiDB supports most SQL modes: • The compatibility modes, such as Oracle and PostgreSQL are parsed but ignored. Compatibility modes are deprecated in MySQL 5.7 and removed in MySQL 8 high availability with the implementation of the Raft consensus algorithm. As a columnar storage extension of TiKV, TiFlash repli- cates data from TiKV in real time according to the Raft Learner consensus Code (VS Code) is a lightweight but powerful source code editor. This tutorial uses the SQLTools extension which supports TiDB as an official driver. In this tutorial, you can learn how to connect to your

4.2.13 SQL modes TiDB supports most SQL modes: • The compatibility modes, such as Oracle and PostgreSQL are parsed but ignored. Compatibility modes are deprecated in MySQL 5.7 and removed in MySQL 8 high availability with the implementation of the Raft consensus algorithm. As a columnar storage extension of TiKV, TiFlash repli- cates data from TiKV in real time according to the Raft Learner consensus Code (VS Code) is a lightweight but powerful source code editor. This tutorial uses the SQLTools extension which supports TiDB as an official driver. In this tutorial, you can learn how to connect to your

6.2.13 SQL modes TiDB supports most SQL modes: • The compatibility modes, such as Oracle and PostgreSQL are parsed but ignored. Compatibility modes are deprecated in MySQL 5.7 and removed in MySQL 8 high availability with the implementation of the Raft consensus algorithm. As a columnar storage extension of TiKV, TiFlash repli- cates data from TiKV in real time according to the Raft Learner consensus Packet Steering (RPS, which can be regarded as the software implementation of RSS), and the RPS extension Re- ceive Flow Steering (RFS). For detailed configuration, see the kernel document. • Software