> For the complete documentation index, see [llms.txt](https://docs.postgresql.tw/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.postgresql.tw/server-administration/regress.md).

# Chapter 31. Regression Tests

**Table of Contents**

[31.1. Running the Tests](/server-administration/regress/regress-run.md) : [31.1.1. Running the Tests Against a Temporary Installation](/server-administration/regress/regress-run.md#REGRESS-RUN-TEMP-INST)

```
[31.1.2. Running the Tests Against an Existing Installation](regress-run.md#REGRESS-RUN-EXISTING-INST)

[31.1.3. Additional Test Suites](regress-run.md#REGRESS-ADDITIONAL)

[31.1.4. Locale and Encoding](regress-run.md#REGRESS-RUN-LOCALE)

[31.1.5. Custom Server Settings](regress-run.md#REGRESS-RUN-CUSTOM-SETTINGS)

[31.1.6. Extra Tests](regress-run.md#REGRESS-RUN-EXTRA-TESTS)
```

[31.2. Test Evaluation](/server-administration/regress/regress-evaluation.md) : [31.2.1. Error Message Differences](/server-administration/regress/regress-evaluation.md#REGRESS-EVALUATION-MESSAGE-DIFFERENCES)

```
[31.2.2. Locale Differences](regress-evaluation.md#REGRESS-EVALUATION-LOCALE-DIFFERENCES)

[31.2.3. Date and Time Differences](regress-evaluation.md#REGRESS-EVALUATION-DATE-TIME-DIFFERENCES)

[31.2.4. Floating-Point Differences](regress-evaluation.md#REGRESS-EVALUATION-FLOAT-DIFFERENCES)

[31.2.5. Row Ordering Differences](regress-evaluation.md#REGRESS-EVALUATION-ORDERING-DIFFERENCES)

[31.2.6. Insufficient Stack Depth](regress-evaluation.md#REGRESS-EVALUATION-STACK-DEPTH)

[31.2.7. The “random” Test](regress-evaluation.md#REGRESS-EVALUATION-RANDOM-TEST)

[31.2.8. Configuration Parameters](regress-evaluation.md#REGRESS-EVALUATION-CONFIG-PARAMS)
```

[31.3. Variant Comparison Files](/server-administration/regress/regress-variant.md)

[31.4. TAP Tests](/server-administration/regress/regress-tap.md) : [31.4.1. Environment Variables](/server-administration/regress/regress-tap.md#REGRESS-TAP-VARS)

[31.5. Test Coverage Examination](/server-administration/regress/regress-coverage.md) : [31.5.1. Coverage with Autoconf and Make](/server-administration/regress/regress-coverage.md#REGRESS-COVERAGE-CONFIGURE)

```
[31.5.2. Coverage with Meson](regress-coverage.md#REGRESS-COVERAGE-MESON)
```

The regression tests are a comprehensive set of tests for the SQL implementation in PostgreSQL. They test standard SQL operations as well as the extended capabilities of PostgreSQL.

***

原文：[PostgreSQL 18.6 Documentation](https://www.postgresql.org/docs/18/regress.html)（英文原文，待翻譯）


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