Solution:Step 1: Understand the to_tsvector and to_tsquery inputsThe to_tsvector converts the text 'The quick brown fox' into searchable tokens. The to_tsquery creates a query for 'quick' AND 'fox'.Step 2: Evaluate the match using @@ operatorBoth 'quick' and 'fox' appear in the tsvector, so the matc

[Solved] Given the query:SELECT to_tsvector('english', 'The quick brown fox') @@ to_tsquery('english', 'quick & fox');What is the output? | PostgreSQL

PostgreSQL - Full-Text Search

Given the query:
SELECT to_tsvector('english', 'The quick brown fox') @@ to_tsquery('english', 'quick & fox');
What is the output?

Atrue

Bfalse

CSyntax error

DNULL

Step-by-Step Solution

Solution:

Step 1: Understand the to_tsvector and to_tsquery inputs
The to_tsvector converts the text 'The quick brown fox' into searchable tokens. The to_tsquery creates a query for 'quick' AND 'fox'.
Step 2: Evaluate the match using @@ operator
Both 'quick' and 'fox' appear in the tsvector, so the match returns true.
Final Answer:
true -> Option A
Quick Check:
tsvector matches tsquery = true [OK]

Quick Trick: Both words must appear for & operator to return true [OK]

Common Mistakes:

Expecting false because of stop words
Confusing syntax causing errors
Assuming NULL for no match

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Given the query:

Step 1: Understand the to_tsvector and to_tsquery inputs

Step 2: Evaluate the match using @@ operator

Final Answer:

Quick Check:

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