Solution:Step 1: Understand the operators in the queryThe query uses AND (&) between 'fast' and NOT (!) 'slow'. This means search for 'fast' but exclude 'slow'.Step 2: Check the output format of to_tsqueryPostgreSQL returns the query as a string with words quoted and operators preserved. So output i

[Solved] Given the query:SELECT to_tsquery('fast & !slow');What is the expected output? — Ans: 'fast' & !'slow' | PostgreSQL

PostgreSQL - Full-Text Search

Given the query:
SELECT to_tsquery('fast & !slow');
What is the expected output?

A'fast' | !'slow'

BSyntax error

C'fast' & !'slow'

D'fast slow'

Step-by-Step Solution

Solution:

Step 1: Understand the operators in the query
The query uses AND (&) between 'fast' and NOT (!) 'slow'. This means search for 'fast' but exclude 'slow'.
Step 2: Check the output format of to_tsquery
PostgreSQL returns the query as a string with words quoted and operators preserved. So output is 'fast' & !'slow'.
Final Answer:
'fast' & !'slow' -> Option C
Quick Check:
AND = & and NOT = ! in output [OK]

Quick Trick: NOT is !, AND is & in to_tsquery output [OK]

Common Mistakes:

Confusing OR (|) with AND (&)
Expecting raw words without quotes
Thinking the query causes syntax error

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Given the query:

Step 1: Understand the operators in the query

Step 2: Check the output format of to_tsquery

Final Answer:

Quick Check:

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