Add nta schema

Author: pratishta

db/migration/0031_smart_human_torch.sql

@@ -0,0 +1,11 @@
+CREATE TABLE "neighborhood_tabulation_area" (
+	"name" text NOT NULL,
+	"year" smallint NOT NULL,
+	"code" text,
+	"li_ft" geometry(multiPolygon,2263),
+	"mercator_fill" geometry(multiPolygon,3857),
+	CONSTRAINT "neighborhood_tabulation_area_name_year_pk" PRIMARY KEY("name","year")
+);
+--> statement-breakpoint
+CREATE INDEX "neighborhood_tabulation_area_li_ft_index" ON "neighborhood_tabulation_area" USING GIST ("li_ft");--> statement-breakpoint
+CREATE INDEX "neighborhood_tabulation_area_mercator_fill_index" ON "neighborhood_tabulation_area" USING GIST ("mercator_fill");