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# curated.boundary_esd_ems
Harris County Emergency Services Districts for EMS (13) (13 rows; category: Boundaries & demographics; geometry column `geom` (MultiPolygon, EPSG:4326))
Fields (expression | type | filled/distinct in a sample | values or examples):
- objectid | bigint | 13/13 | e.g.: 13; 2; 9
- attrs->>'code' | string | 13/13 | e.g.: 673; 664; 676
- attrs->>'name' | string | 13/13 | e.g.: HC ESD 75 (EMS/FIRE); HARRIS-FT BND ESD 100; WALLER-HC ESD 200 (EMS/FIRE)
attrs values are text: cast when comparing numbers, e.g. (attrs->>'PCI')::numeric.