{
    "action": "final",
    "content": "## Column Classification for 2010_2026_scores\n\nBased on the metadata inspection, here's how the 13 columns classify:\n\n### **Identifiers** (0 columns)\nNone. This table has no primary key or unique identifier columns. Each row represents a game instance, but there's no single ID column.\n\n### **Categorical Dimensions** (5 columns)\n- **Week** — Game week designation (e.g., \"WEEK 1\", \"WILD CARD WEEKEND\", \"CONFERENCE CHAMPIONSHIPS\"); ~28 distinct values\n- **GameStatus** — Status of the game (e.g., \"BYE\", \"TBD\"); ~4 distinct values  \n- **GameSlot** — Day/time slot when game was played (e.g., \"Sunday\", \"Monday\", \"Wednesday\"); ~13 distinct values\n- **AwayTeam** — Away team abbreviation (e.g., \"ARI\", \"WAS\"); ~39 distinct teams\n- **HomeTeam** — Home team abbreviation; ~39 distinct teams\n\n### **Numeric Metrics** (2 columns)\n- **AwayScore** — Points scored by away team; range 0.0–59.0; 837 nulls (likely for future/cancelled games)\n- **HomeScore** — Points scored by home team; range 0.0–70.0; 837 nulls\n\n### **Dates/Times** (2 columns)\n- **Season** — Year of the NFL season (2010–2026); stored as BIGINT but represents a temporal dimension\n- **GameDate** — Date when game was/will be played; stored as VARCHAR (~196 distinct values, includes \"TBD\" for unscheduled games)\n\n### **System/Metadata Columns** (4 columns)\nThese track data lineage and are not part of the analytical model:\n- **_ingestion_timestamp** — When the data was loaded (all rows: 2026-09-24 01:20:49)\n- **_batch_id** — ETL batch identifier (single value: batch_524e3935b4e5)\n- **_source_file** — Source CSV path\n- **_source_system** — Origin system (\"api\")\n\n---\n\n**Key observations:**\n- The table structure is game-centric: each row is one game with its teams and scores\n- No composite key is evident, though (Season, Week, AwayTeam, HomeTeam) would likely be unique for scheduled games\n- The 837 null scores correspond to games not yet played (future dates or TBD status)\n- GameDate is text rather than a proper DATE type, limiting temporal operations without casting"
}