jadb/migrations/0005_JMDict_search_index_tables.sql

CREATE TABLE "JMdict_EntryScore" (
  "type" CHAR(1) NOT NULL CHECK ("type" IN ('r', 'k')),
  "entryId" INTEGER NOT NULL REFERENCES "JMdict_Entry"("entryId"),
  "elementId" INTEGER NOT NULL,
  "score" INTEGER NOT NULL DEFAULT 0,
  "common" BOOLEAN NOT NULL DEFAULT FALSE,
  PRIMARY KEY ("type", "elementId")
) WITHOUT ROWID;

CREATE INDEX "JMdict_EntryScore_byElementId_byScore" ON "JMdict_EntryScore"("elementId", "score");
CREATE INDEX "JMdict_EntryScore_byScore" ON "JMdict_EntryScore"("score");
CREATE INDEX "JMdict_EntryScore_byCommon" ON "JMdict_EntryScore"("common");

CREATE INDEX "JMdict_EntryScore_byType_byElementId_byScore" ON "JMdict_EntryScore"("type", "elementId", "score");
CREATE INDEX "JMdict_EntryScore_byType_byScore" ON "JMdict_EntryScore"("type", "score");
CREATE INDEX "JMdict_EntryScore_byType_byCommon" ON "JMdict_EntryScore"("type", "common");

-- NOTE: these views are deduplicated in order not to perform an unnecessary
--       UNION on every trigger

CREATE VIEW "JMdict_EntryScoreView_Reading" AS
SELECT
  'r' AS "type",
  "JMdict_ReadingElement"."entryId",
  "JMdict_ReadingElement"."elementId",
  (
    "news" IS 1
    OR "ichi" IS 1
    OR "spec" IS 1
    OR "gai" IS 1
  )
  AS "common",
  ((
    "news" IS 1
    OR "ichi" IS 1
    OR "spec" IS 1
    OR "gai" IS 1
  ) * 50)
  + (("news" IS 1) * 10)
  + (("news" IS 2) * 5)
  + (("ichi" IS 1) * 10)
  + (("ichi" IS 2) * 5)
  + (("spec" IS 1) * 10)
  + (("spec" IS 2) * 5)
  + (("gai" IS 1) * 10)
  + (("gai" IS 2) * 5)
  + (("orderNum" IS 1) * 20)
  - (substr(COALESCE("JMdict_JLPTTag"."jlptLevel", 'N0'), 2) * -5)
  AS "score"
FROM "JMdict_ReadingElement"
LEFT JOIN "JMdict_JLPTTag" USING ("entryId");

CREATE VIEW "JMdict_EntryScoreView_Kanji" AS
SELECT
  'k' AS "type",
  "JMdict_KanjiElement"."entryId",
  "JMdict_KanjiElement"."elementId",
  (
    "news" IS 1
    OR "ichi" IS 1
    OR "spec" IS 1
    OR "gai" IS 1
  )
  AS "common",
  ((
    "news" IS 1
    OR "ichi" IS 1
    OR "spec" IS 1
    OR "gai" IS 1
  ) * 50)
  + (("news" IS 1) * 10)
  + (("news" IS 2) * 5)
  + (("ichi" IS 1) * 10)
  + (("ichi" IS 2) * 5)
  + (("spec" IS 1) * 10)
  + (("spec" IS 2) * 5)
  + (("gai" IS 1) * 10)
  + (("gai" IS 2) * 5)
  + (("orderNum" IS 1) * 20)
  - (substr(COALESCE("JMdict_JLPTTag"."jlptLevel", 'N0'), 2) * -5)
  AS "score"
FROM "JMdict_KanjiElement"
LEFT JOIN "JMdict_JLPTTag" USING ("entryId");

CREATE VIEW "JMdict_EntryScoreView" AS
SELECT *
FROM "JMdict_EntryScoreView_Kanji"
UNION ALL
SELECT *
FROM "JMdict_EntryScoreView_Reading";


--- JMdict_ReadingElement triggers

CREATE TRIGGER "JMdict_EntryScore_Insert_JMdict_ReadingElement"
AFTER INSERT ON "JMdict_ReadingElement"
BEGIN
  INSERT INTO "JMdict_EntryScore" (
    "type",
    "entryId",
    "elementId",
    "score",
    "common"
  )
  SELECT "type", "entryId", "elementId", "score", "common"
  FROM "JMdict_EntryScoreView_Reading"
  WHERE "elementId" = NEW."elementId";
END;

CREATE TRIGGER "JMdict_EntryScore_Update_JMdict_ReadingElement"
AFTER UPDATE OF "news", "ichi", "spec", "gai", "nf", "orderNum"
ON "JMdict_ReadingElement"
BEGIN
  UPDATE "JMdict_EntryScore"
  SET
    "score" = "JMdict_EntryScoreView_Reading"."score",
    "common" = "JMdict_EntryScoreView_Reading"."common"
  FROM "JMdict_EntryScoreView_Reading"
  WHERE "elementId" = NEW."elementId";
END;

CREATE TRIGGER "JMdict_EntryScore_Delete_JMdict_ReadingElement"
AFTER DELETE ON "JMdict_ReadingElement"
BEGIN
  DELETE FROM "JMdict_EntryScore"
  WHERE "type" = 'r'
    AND "elementId" = OLD."elementId";
END;

--- JMdict_KanjiElement triggers

CREATE TRIGGER "JMdict_EntryScore_Insert_JMdict_KanjiElement"
AFTER INSERT ON "JMdict_KanjiElement"
BEGIN
  INSERT INTO "JMdict_EntryScore" (
    "type",
    "entryId",
    "elementId",
    "score",
    "common"
  )
  SELECT "type", "entryId", "elementId", "score", "common"
  FROM "JMdict_EntryScoreView_Kanji"
  WHERE "elementId" = NEW."elementId";
END;

CREATE TRIGGER "JMdict_EntryScore_Update_JMdict_KanjiElement"
AFTER UPDATE OF "news", "ichi", "spec", "gai", "nf", "orderNum"
ON "JMdict_KanjiElement"
BEGIN
  UPDATE "JMdict_EntryScore"
  SET
    "score" = "JMdict_EntryScoreView_Kanji"."score",
    "common" = "JMdict_EntryScoreView_Kanji"."common"
  FROM "JMdict_EntryScoreView_Kanji"
  WHERE "elementId" = NEW."elementId";
END;

CREATE TRIGGER "JMdict_EntryScore_Delete_JMdict_KanjiElement"
AFTER DELETE ON "JMdict_KanjiElement"
BEGIN
  DELETE FROM "JMdict_EntryScore"
  WHERE "type" = 'k'
    AND "elementId" = OLD."elementId";
END;

--- JMdict_JLPTTag triggers

CREATE TRIGGER "JMdict_EntryScore_Insert_JMdict_JLPTTag"
AFTER INSERT ON "JMdict_JLPTTag"
BEGIN
  UPDATE "JMdict_EntryScore"
  SET
    "score" = "JMdict_EntryScoreView"."score",
    "common" = "JMdict_EntryScoreView"."common"
  FROM "JMdict_EntryScoreView"
  WHERE "JMdict_EntryScoreView"."entryId" = NEW."entryId"
    AND "JMdict_EntryScore"."entryId" = NEW."entryId"
    AND "JMdict_EntryScoreView"."elementId" = "JMdict_EntryScore"."elementId";
END;

CREATE TRIGGER "JMdict_EntryScore_Update_JMdict_JLPTTag"
AFTER UPDATE OF "jlptLevel"
ON "JMdict_JLPTTag"
BEGIN
  UPDATE "JMdict_EntryScore"
  SET
    "score" = "JMdict_EntryScoreView"."score",
    "common" = "JMdict_EntryScoreView"."common"
  FROM "JMdict_EntryScoreView"
  WHERE "JMdict_EntryScoreView"."entryId" = NEW."entryId"
    AND "JMdict_EntryScore"."entryId" = NEW."entryId"
    AND "JMdict_EntryScoreView"."elementId" = "JMdict_EntryScore"."elementId";
END;

CREATE TRIGGER "JMdict_EntryScore_Delete_JMdict_JLPTTag"
AFTER DELETE ON "JMdict_JLPTTag"
BEGIN
  UPDATE "JMdict_EntryScore"
  SET
    "score" = "JMdict_EntryScoreView"."score",
    "common" = "JMdict_EntryScoreView"."common"
  FROM "JMdict_EntryScoreView"
  WHERE "JMdict_EntryScoreView"."entryId" = OLD."entryId"
    AND "JMdict_EntryScore"."entryId" = OLD."entryId"
    AND "JMdict_EntryScoreView"."elementId" = "JMdict_EntryScore"."elementId";
END;