支持达梦数据库V8

src/main/resources/dm/create_table_sequences.sql

@@ -3,24 +3,11 @@ CREATE TABLE IF NOT EXISTS "sequences"
     "key"         VARCHAR(64) NOT NULL,
     "type"        VARCHAR(64) NOT NULL,
     "seq"         BIGINT      NOT NULL,
-    "update_time" TIMESTAMP,
+    "update_time" TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
     PRIMARY KEY ("key", "type")
 );
 COMMENT ON TABLE "sequences" IS '当前序号表';
 COMMENT ON COLUMN "sequences"."key" IS '序号英文名称';
 COMMENT ON COLUMN "sequences"."type" IS '序号类型';
 COMMENT ON COLUMN "sequences"."seq" IS '已使用到的序号';
-COMMENT ON COLUMN "sequences"."update_time" IS '最后使用时间';
-
-/*
-@触发器设置，功能：自动记录更新时间
-@触发器名为 SEQUENCES_UPDATE_TIME
-@触发器执行范围为每行生效
-*/
-CREATE OR REPLACE TRIGGER SEQUENCES_UPDATE_TIME BEFORE UPDATE ON "sequences" FOR EACH ROW
-BEGIN
-    NEW."update_time":=SYSDATE;
-END;
-
-/*启动触发器*/
-ALTER TRIGGER SEQUENCES_UPDATE_TIME ENABLE;
+COMMENT ON COLUMN "sequences"."update_time" IS '最后使用时间';