PostgreSQL - Common Table Expressions
Which clause in PostgreSQL explicitly instructs the planner to materialize a CTE instead of inlining it?
Which clause in PostgreSQL explicitly instructs the planner to materialize a CTE instead of inlining it?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Identify the keyword
PostgreSQL uses the keyword MATERIALIZED to force storing the CTE result.Step 2: Exclude incorrect options
INLINE is the opposite behavior, NO MATERIALIZATION is not valid syntax, STORE is not a keyword.Final Answer:
MATERIALIZED -> Option DQuick Check:
Use MATERIALIZED to force CTE storage [OK]
Quick Trick: MATERIALIZED forces CTE storage [OK]
Common Mistakes:
- Confusing INLINE with MATERIALIZED
- Using invalid keywords like STORE
- Assuming NO MATERIALIZATION is valid syntax
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