```json { "action": "final", "content": "# Dataset Columns: Types and Meanings\n\nThis dataset contains **13 tables** with **16.8+ million rows** tracking beer ratings, beers, breweries, places, and users. Here's what each column represents:\n\n## Core Rating Data\n\n### beer_ratings (14.3M rows)\nThe primary table capturing individual beer reviews:\n\n- **rating_id** (BIGINT) — Unique identifier for each rating (0 to 14.3M)\n- **user_id** (BIGINT) — ID of the user who submitted the rating\n- **beer_id** (BIGINT) — ID of the beer being rated\n- **aroma** (BIGINT) — Aroma score (0-10 scale)\n- **flavor** (BIGINT) — Flavor score (0-10 scale)\n- **mouthfeel** (BIGINT) — Mouthfeel/texture score (0-5 scale)\n- **appearance** (BIGINT) — Visual appearance score (0-5 scale)\n- **overall** (BIGINT) — Overall impression score (0-20 scale)\n- **total_score** (DOUBLE) — Computed total rating (0.1-5.0 scale)\n- **comments** (VARCHAR) — Written review text (~11.4M unique comments)\n- **created_at** (TIMESTAMP) — When the rating was submitted (2000-04-12 to 2025-02-03)\n- **updated_at** (TIMESTAMP) — When the rating was last modified\n- **description_score** (DOUBLE) — Quality score for the written review (-10495 to 500)\n- **language** (VARCHAR) — Language of the review (76 languages detected)\n- **availability_id** (BIGINT) — Link to where the beer was available\n- **place_rating_id** (BIGINT) — Link to associated place rating\n- **serving_type_id** (BIGINT) — How the beer was served (draft, bottle, can, etc.)\n- **time_id** (BIGINT) — Temporal reference\n- **user_location_id** (BIGINT) — User's location when rating\n\n### place_ratings (385K rows)\nRatings for bars, breweries, and other beer-serving establishments:\n\n- **rating_id** (BIGINT) — Unique identifier (0 to 385K)\n- **user_id** (BIGINT) — ID of the rating user\n- **place_id** (BIGINT) — ID of the place being rated\n- **atmosphere** (BIGINT) — Atmosphere score (0-5 scale)\n- **service** (BIGINT) — Service quality score (0-5 scale)\n- **selection** (BIGINT) — Beer selection score (0-5 scale)\n- **food** (BIGINT) — Food quality score (0-5 scale)\n- **value** (BIGINT) — Value for money score (0-5 scale)\n- **total_score** (DOUBLE) — Overall place rating (0.1-5.0 scale)\n- **comments** (VARCHAR) — Written review (~340K unique)\n- **created_at** (TIMESTAMP) — Rating submission date (2004-01-03 to 2025-02-01)\n- **updated_at** (TIMESTAMP) — Last modification date\n- **description_score** (DOUBLE) — Review quality score (-10495 to 500)\n- **language** (VARCHAR) — Review language\n- **time_id** (BIGINT) — Temporal reference\n- **user_location_id** (BIGINT) — User location\n- **availability_id** (BIGINT) — Beer availability link\n\n## Beer Information\n\n### beers (1.19M rows)\nComprehensive beer catalog:\n\n- **beer_id** (BIGINT) — Unique beer identifier (1 to 1.19M)\n- **beer_name** (VARCHAR) — Name of the beer (~1.05M unique)\n- **brewer_id** (BIGINT) — ID of the brewing company\n- **style_id** (BIGINT) — Beer style classification (157 styles)\n- **abv** (DOUBLE) — Alcohol by volume percentage (0.0-67.5%)\n- **ibu** (DOUBLE) — International Bitterness Units (0-1000)\n- **calories** (BIGINT) — Calories per serving (0-900)\n- **description** (VARCHAR) — Beer description text (~1.05M unique)\n- **is_organic** (BOOLEAN) — Organic certification flag\n- **is_retired** (BOOLEAN) — Whether beer is no longer produced\n- **is_alias** (BOOLEAN) — Whether this is an alternate name\n- **is_verified** (BOOLEAN) — Verification status\n- **is_one_off** (BOOLEAN) — Limited/one-time production\n- **has_pic** (BOOLEAN) — Whether beer has an image\n- **Unrateable** (BOOLEAN) — Whether beer can be rated\n- **created_at** (TIMESTAMP) — Record creation (2000-04-02 to 2025-02-03)\n- **updated_at** (TIMESTAMP) — Last update\n- **created_by** (DOUBLE) — User ID who created the entry (1-747K)\n- **updated_by** (DOUBLE) — User ID who last updated (181-746K)\n- **rating_count** (BIGINT) — Number of ratings received (0-9,524)\n- **weighted_avg** (DOUBLE) — Weighted average rating (0.1-5.0)\n- **overall_score** (BIGINT) — Aggregate overall score (0-100)\n- **style_score** (BIGINT) — Style-specific score (0-100)\n- **mean_abv** (DOUBLE) — Mean ABV for this beer\n- **mean_ibu** (DOUBLE) — Mean IBU\n- **mean_calories** (DOUBLE) — Mean calories\n- **mean_rating** (DOUBLE) — Mean rating score\n- **mean_aroma** (DOUBLE) — Mean aroma score\n- **mean_flavor** (DOUBLE) — Mean flavor score\n- **mean_mouthfeel** (DOUBLE) — Mean mouthfeel score\n- **mean_appearance** (DOUBLE) — Mean appearance score\n- **mean_overall** (DOUBLE) — Mean overall score\n- **std_rating** (DOUBLE) — Rating standard deviation\n- **std_aroma** (DOUBLE) — Aroma score std dev\n- **std_flavor** (DOUBLE) — Flavor score std dev\n- **std_mouthfeel** (DOUBLE) — Mouthfeel score std dev\n- **std_appearance** (DOUBLE) — Appearance score std dev\n- **std_overall** (DOUBLE) — Overall score std dev\n- **percentile_rating** (DOUBLE) — Rating percentile rank (0-100)\n\n### beer_upcs (249K rows)\nUniversal Product Codes for beers:\n\n- **upc_id** (BIGINT) — Unique UPC identifier\n- **beer_id** (BIGINT) — Associated beer\n- **upc** (VARCHAR) — UPC barcode (~249K unique)\n- **upc_type** (VARCHAR) — Type of UPC (UPC-A, EAN-13, etc.)\n- **container_size** (VARCHAR) — Package size (e.g., \"12 oz\", \"750 mL\")\n- **container_type** (VARCHAR) — Package type (bottle, can, keg)\n- **quantity** (BIGINT) — Number of units in package (1-99)\n\n### beer_styles (157 rows)\nBeer style taxonomy:\n\n- **style_id** (BIGINT) — Unique style identifier (1-157)\n- **style_name** (VARCHAR) — Style name (157 unique styles)\n- **parent_style_id** (BIGINT) — Parent category for hierarchical classification\n- **description** (VARCHAR) — Style description\n- **abv_min** (DOUBLE) — Typical minimum ABV (0-9.5%)\n- **abv_max** (