Add postgres DB init script

warden_server/warden_3.0_postgres.sql

+SET TimeZone='+00:00';
+
+CREATE COLLATION case_insensitive (
+  provider = icu,
+  locale = 'und-u-ks-level2',
+  deterministic = false
+);
+
+-- ---------------------------------------------------------
+
+--
+-- Database: "warden3"
+--
+
+-- --------------------------------------------------------
+
+--
+-- Table structure for table "categories"
+--
+
+CREATE TABLE "categories" (
+  "id" int NOT NULL UNIQUE CHECK ("id" >= 0),
+  "category" text NOT NULL COLLATE case_insensitive,
+  "subcategory" text DEFAULT NULL COLLATE case_insensitive,
+  "cat_subcat" text NOT NULL COLLATE case_insensitive
+);
+
+CREATE INDEX "cat_sub" ON "categories" ("cat_subcat");
+
+-- --------------------------------------------------------
+
+--
+-- Table structure for table "clients"
+--
+
+CREATE TABLE "clients" (
+  "id" SERIAL PRIMARY KEY,
+  "registered" timestamp NOT NULL DEFAULT '1970-01-01 00:00:00',
+  "requestor" text NOT NULL COLLATE case_insensitive,
+  "hostname" text NOT NULL COLLATE case_insensitive,
+  "note" text NULL COLLATE case_insensitive,
+  "valid" smallint NOT NULL DEFAULT '1' CHECK ("valid" >= 0),
+  "name" text NOT NULL,
+  "secret" text NULL,
+  "read" smallint NOT NULL DEFAULT '1' CHECK ("read" >= 0),
+  "debug" smallint NOT NULL DEFAULT '0' CHECK ("debug" >= 0),
+  "write" smallint NOT NULL DEFAULT '0' CHECK ("write" >= 0),
+  "test" smallint NOT NULL DEFAULT '0' CHECK ("test" >= 0)
+);
+
+CREATE INDEX "clients_1" ON "clients" ("valid", "secret", "hostname");
+CREATE INDEX "clients_2" ON "clients" ("valid", "name");
+
+-- --------------------------------------------------------
+
+--
+-- Table structure for table "events"
+--
+
+CREATE TABLE "events" (
+  "id" BIGSERIAL PRIMARY KEY,
+  "received" timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  "client_id" int NOT NULL REFERENCES "clients" ("id"),
+  "data" bytea NOT NULL,
+  "valid" smallint NOT NULL DEFAULT '1' CHECK ("valid" >= 0)
+);
+
+CREATE INDEX "id" ON "events" ("id", "client_id");
+CREATE INDEX "received" ON "events" ("received");
+
+SELECT nextval('events_id_seq'); -- AUTO_INCREMENT = 2
+
+-- --------------------------------------------------------
+
+--
+-- Table structure for table "event_category_mapping"
+--
+
+CREATE TABLE "event_category_mapping" (
+  "event_id" bigint NOT NULL REFERENCES "events" ("id") ON DELETE CASCADE,
+  "category_id" int NOT NULL,
+  PRIMARY KEY ("event_id", "category_id"),
+  CONSTRAINT "event_category_mapping_category_id_fk" FOREIGN KEY ("category_id") REFERENCES "categories" ("id")
+);
+
+
+-- --------------------------------------------------------
+
+--
+-- Table structure for table "last_events"
+--
+
+CREATE TABLE "last_events" (
+  "id" SERIAL PRIMARY KEY,
+  "client_id" int NOT NULL REFERENCES "clients" ("id"),
+  "event_id" bigint REFERENCES "events" ("id"),
+  "timestamp" timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE INDEX "client_id" ON "last_events" ("client_id", "event_id");
+
+-- --------------------------------------------------------
+
+--
+-- Table structure for table "tags"
+--
+
+CREATE TABLE "tags" (
+  "id" int NOT NULL UNIQUE CHECK ("id" >= 0),
+  "tag" text NOT NULL COLLATE case_insensitive
+);
+
+CREATE INDEX "id_tag_name" ON "tags" ("id", "tag");
+CREATE INDEX "tag_name" ON "tags" ("tag");
+
+-- --------------------------------------------------------
+
+--
+-- Table structure for table "event_tag_mapping"
+--
+
+CREATE TABLE "event_tag_mapping" (
+  "event_id" bigint NOT NULL REFERENCES "events" ("id") ON DELETE CASCADE,
+  "tag_id" int NOT NULL,
+  PRIMARY KEY ("event_id", "tag_id"),
+  CONSTRAINT "event_tag_mapping_tag_id_fk" FOREIGN KEY ("tag_id") REFERENCES "tags" ("id")
+);