[Solved] Given the table documents with a content column of type tsvector, what will this query return?SELECT id FROM documents WHERE content @@ to_tsquery('cat & dog'); | PostgreSQL

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Given the table documents with a content column of type tsvector, what will this query return?
SELECT id FROM documents WHERE content @@ to_tsquery('cat & dog');

ARows where content contains either 'cat' or 'dog'

BRows where content contains both 'cat' and 'dog'

CRows where content contains the phrase 'cat dog'

DRows where content contains 'cat' but not 'dog'

Step-by-Step Solution

Solution:

Step 1: Understand the tsquery expression
The query uses 'cat & dog', which means both terms must be present.
Step 2: Interpret the @@ operator behavior
The @@ operator returns true if the tsvector matches the tsquery conditions.
Final Answer:
Rows where content contains both 'cat' and 'dog' -> Option B
Quick Check:
AND operator in tsquery = both terms required = A [OK]

Quick Trick: Use & in tsquery for AND condition with @@ [OK]

Common Mistakes:

Confusing & with | (OR)
Thinking it matches phrases instead of terms
Assuming partial matches without both terms

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Given the table documents with a content column of type tsvector, what will this query return?

Step 1: Understand the tsquery expression

Step 2: Interpret the @@ operator behavior

Final Answer:

Quick Check:

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