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Cricket Fixtures Without Repeats
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Cricket Fixtures Without Repeats

MediumSQL · PostgreSQL

Problem

Given a table of cricket teams, find all possible match fixtures without repetition (Ind vs NZ and NZ vs Ind count as the same fixture).

Asked in the Round 2: Client Interview (PySpark + SQL) stage.

Output

  1. One row per unique unordered team pair
  2. Columns: team_1, team_2
  3. Exclude self-matches where both teams are the same
  4. Return each pair only once, with a deterministic ordering of the two team names

Schema

cricket_teams
ColumnTypeDescription
team_idPKINTUnique identifier for each cricket team
team_nameVARCHAR(100)Cricket team name
country_codeVARCHAR(10)Optional short country or board code
Tablescricket_teams
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