PostgreSQL - Roles and Security
Why does PostgreSQL require explicit enabling of row-level security on a table before policies take effect?
Why does PostgreSQL require explicit enabling of row-level security on a table before policies take effect?
hard📝 Conceptual Q10 of 15
Step-by-Step Solution
Solution:
Step 1: Understand RLS enabling rationale
Enabling RLS is explicit to prevent breaking existing apps by restricting access unexpectedly.Step 2: Evaluate other options
RLS does not encrypt data or only log access; it controls row visibility.Final Answer:
To avoid accidental access restrictions on existing applications. -> Option AQuick Check:
Explicit enable prevents accidental restrictions = To avoid accidental access restrictions on existing applications. [OK]
Quick Trick: RLS must be enabled explicitly to protect existing app behavior. [OK]
Common Mistakes:
- Thinking RLS encrypts data
- Assuming RLS slows queries by default
- Believing policies only log access
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