Limit non unique indexes in PostgreSQL
Limit non-unique indexes to a maximum of three columns in PostgreSQL databases:
Bad:
```sql
CREATE INDEX index_users_on_multiple_columns ON users (column_a, column_b, column_c, column_d);
```
Good:
Install this rule for wispbit
Add this rule to wispbit and it will run when you open a pull request
Install this rule for Coderabbit
Copy the configuration below and add it to your repository as .coderabbit.yml
in your project root.
reviews:
path_instructions:
- path: "*.sql"
instructions: |
Limit non-unique indexes to a maximum of three columns in PostgreSQL databases:
Bad:
```sql
CREATE INDEX index_users_on_multiple_columns ON users (column_a, column_b, column_c, column_d);
```
Good:
```sql
CREATE INDEX CONCURRENTLY index_users_on_selective_columns ON users (column_d, column_b);
```
Install this rule for Greptile
Greptile rules can be added through the web interface. Please see this documentation for details on how to add custom rules and context.
Limit non-unique indexes to a maximum of three columns in PostgreSQL databases:
Bad:
```sql
CREATE INDEX index_users_on_multiple_columns ON users (column_a, column_b, column_c, column_d);
```
Good:
```sql
CREATE INDEX CONCURRENTLY index_users_on_selective_columns ON users (column_d, column_b);
```
File Path Patterns:
Install this rule for GitHub Copilot
Copilot instructions can be added through the interface. See the documentation for details on how to create coding guidelines.
Limit non-unique indexes to a maximum of three columns in PostgreSQL databases:
Bad:
```sql
CREATE INDEX index_users_on_multiple_columns ON users (column_a, column_b, column_c, column_d);
```
Good:
```sql
CREATE INDEX CONCURRENTLY index_users_on_selective_columns ON users (column_d, column_b);
```
File Path Patterns:
Install this rule for Graphite Diamond
Diamond custom rules can be added through the interface. See the documentation for details on how to create custom rules.
Limit non-unique indexes to a maximum of three columns in PostgreSQL databases:
Bad:
```sql
CREATE INDEX index_users_on_multiple_columns ON users (column_a, column_b, column_c, column_d);
```
Good:
```sql
CREATE INDEX CONCURRENTLY index_users_on_selective_columns ON users (column_d, column_b);
```
File Path Patterns:
Use with Cline
Copy the rule below and ask Cline to review your code using this rule
Limit non-unique indexes to a maximum of three columns in PostgreSQL databases:
Bad:
```sql
CREATE INDEX index_users_on_multiple_columns ON users (column_a, column_b, column_c, column_d);
```
Good:
```sql
CREATE INDEX CONCURRENTLY index_users_on_selective_columns ON users (column_d, column_b);
```
Use with OpenAI Codex
Copy the rule below and ask OpenAI Codex to review your code using this rule
Limit non-unique indexes to a maximum of three columns in PostgreSQL databases:
Bad:
```sql
CREATE INDEX index_users_on_multiple_columns ON users (column_a, column_b, column_c, column_d);
```
Good:
```sql
CREATE INDEX CONCURRENTLY index_users_on_selective_columns ON users (column_d, column_b);
```
Use with Cursor
Copy the rule below and ask Cursor to review your code using this rule
Limit non-unique indexes to a maximum of three columns in PostgreSQL databases:
Bad:
```sql
CREATE INDEX index_users_on_multiple_columns ON users (column_a, column_b, column_c, column_d);
```
Good:
```sql
CREATE INDEX CONCURRENTLY index_users_on_selective_columns ON users (column_d, column_b);
```
Use with Claude Code
Copy the rule below and ask Claude Code to review your code using this rule
Limit non-unique indexes to a maximum of three columns in PostgreSQL databases:
Bad:
```sql
CREATE INDEX index_users_on_multiple_columns ON users (column_a, column_b, column_c, column_d);
```
Good:
```sql
CREATE INDEX CONCURRENTLY index_users_on_selective_columns ON users (column_d, column_b);
```
Install this rule for Windsurf
To set up rules for Windsurf Reviews, please see this documentation
Limit non-unique indexes to a maximum of three columns in PostgreSQL databases:
Bad:
```sql
CREATE INDEX index_users_on_multiple_columns ON users (column_a, column_b, column_c, column_d);
```
Good:
```sql
CREATE INDEX CONCURRENTLY index_users_on_selective_columns ON users (column_d, column_b);
```