[Solved] You wrote this query but it returns no rows:SELECT * FROM emails WHERE to_tsvector('english', body) @@ to_tsquery('english', 'urgent | meeting');What is the most likely reason? | PostgreSQL

PostgreSQL - Full-Text Search

You wrote this query but it returns no rows:

SELECT * FROM emails WHERE to_tsvector('english', body) @@ to_tsquery('english', 'urgent | meeting');

What is the most likely reason?

AThe body column is NULL in all rows.

BThe to_tsquery syntax is incorrect; '|' is not valid.

CThe query searches for 'urgent' OR 'meeting', but none exist in body.

Dto_tsvector cannot be used on text columns.

Step-by-Step Solution

Solution:

Step 1: Understand the query logic
The '|' operator means OR, so it matches rows containing 'urgent' or 'meeting'.
Step 2: Analyze why no rows return
If no rows match, likely none contain these words in the body column.
Final Answer:
The query searches for 'urgent' OR 'meeting', but none exist in body. -> Option C
Quick Check:
'|' means OR; no matches means words missing [OK]

Quick Trick: Check if searched words exist in text before blaming syntax [OK]

Common Mistakes:

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You wrote this query but it returns no rows: