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Which input does ts_headline require to highlight text correctly?

easy📝 Conceptual Q2 of 15
PostgreSQL - Full-Text Search
Which input does ts_headline require to highlight text correctly?
AA text column and a tsquery search expression.
BOnly a text column without any query.
CA numeric column and a text query.
DA boolean value and a text column.
Step-by-Step Solution
Solution:
  1. Step 1: Identify ts_headline parameters

    ts_headline needs the text to highlight and a search query to find matches.
  2. Step 2: Match parameters to options

    A text column and a tsquery search expression. correctly states it requires a text column and a tsquery expression.
  3. Final Answer:

    A text column and a tsquery search expression. -> Option A
  4. Quick Check:

    ts_headline inputs = text + tsquery [OK]
Quick Trick: ts_headline needs text and tsquery inputs [OK]
Common Mistakes:
  • Providing only text without a query
  • Using wrong data types like numeric or boolean
  • Confusing tsquery with plain text

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