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You run EXPLAIN ANALYZE SELECT * FROM products WHERE price > 100; but get an error saying "relation 'products' does not exist." What is the likely cause?

medium📝 Debug Q14 of 15
PostgreSQL - Performance Tuning
You run EXPLAIN ANALYZE SELECT * FROM products WHERE price > 100; but get an error saying "relation 'products' does not exist." What is the likely cause?
AEXPLAIN ANALYZE cannot be used with WHERE clauses
BThe query syntax is incorrect for EXPLAIN ANALYZE
CThe table 'products' does not exist in the current database
DYou forgot to commit the transaction
Step-by-Step Solution
Solution:
  1. Step 1: Analyze the error message

    The error says the table 'products' does not exist, meaning PostgreSQL cannot find it.
  2. Step 2: Check other options

    EXPLAIN ANALYZE works with WHERE clauses and the syntax is correct. Committing transaction is unrelated.
  3. Final Answer:

    The table 'products' does not exist in the current database -> Option C
  4. Quick Check:

    Relation not found = missing table [OK]
Quick Trick: Check table existence if 'relation does not exist' error appears [OK]
Common Mistakes:
  • Assuming EXPLAIN ANALYZE disallows WHERE
  • Blaming syntax when table is missing
  • Thinking commit affects table visibility

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