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What database is postgresql?
Postgresql is a powerful open source database.

Postgresql database is a powerful open source database, which supports rich data types (such as JSON and JSONB types, array types) and custom types.

PostgreSQL database provides rich interfaces, which can easily expand its functions. For example, you can realize your own index types under the GiST framework, support writing custom functions and triggers in C language, and also support writing custom functions in popular programming languages.

Advantages of PostgreSQL database

1, natural immunity to using software in excess of the permitted quantity.

For some commercial database vendors, using software beyond the licensed quantity is the first problem. With PostgreSQL, no one can accuse you of using the software in violation of the license agreement because there is no license fee.

2. Better support than commercial service providers.

In addition to the support of general commercial companies, we also have various communities composed of PostgreSQL professionals and enthusiasts, from which users can seek support and help.

3. The staff cost is greatly reduced.

Compared with the large-scale commercial private database software in the market, our system has only undergone a little maintenance and optimization during design and development, while still maintaining all functions, stability and normal performance. Moreover, compared with those commercial private database suppliers, our training process is generally more cost-effective, easier to manage and closer to real use scenarios.

4. Famous reliability and stability

Different from many commercial private databases, PostgreSQL has hardly had a downtime during its operation for several years, which is especially common for many companies. Even if it is only once, it can work stably.

5. Expansibility

All the source code of PostgreSQL is provided to everyone for free. If your employees need to customize PostgreSQL or add some functions, they only need to make some changes at no extra cost. Professionals and enthusiasts in the global PostgreSQL community are also actively expanding the functions of PostgreSQL.