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Which data type is required as input for the ts_rank function in PostgreSQL?

easy📝 Conceptual Q2 of 15
PostgreSQL - Full-Text Search
Which data type is required as input for the ts_rank function in PostgreSQL?
Atsvector and tsquery
Btext and integer
Cinteger and boolean
Djson and jsonb
Step-by-Step Solution
Solution:
  1. Step 1: Identify ts_rank input types

    ts_rank takes a tsvector (document) and a tsquery (search query) as inputs.

  2. Step 2: Match inputs with options

    Only tsvector and tsquery lists tsvector and tsquery, the correct types.

  3. Final Answer:

    tsvector and tsquery -> Option A
  4. Quick Check:

    Input types = tsvector and tsquery [OK]
Quick Trick: ts_rank needs tsvector and tsquery inputs [OK]
Common Mistakes:
  • Using plain text instead of tsvector
  • Confusing tsquery with integer
  • Passing JSON types mistakenly

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