小编rra*_*wrr的帖子

我有一个非常基本的图像上传服务实现,您可以上传图像并标记它们.这是我的架构:

CREATE TABLE Tag(
    orm_id INTEGER PRIMARY KEY AUTOINCREMENT, 
    pid_high UNSIGNED BIG INT NOT NULL, 
    pid_low UNSIGNED BIG INT NOT NULL, 
    name STRING NOT NULL, 
    CONSTRAINT KeyConstraint UNIQUE (pid_high, pid_low) ON CONFLICT FAIL);

CREATE TABLE TagBridge(
    orm_id INTEGER PRIMARY KEY AUTOINCREMENT, 
    pid_high UNSIGNED BIG INT NOT NULL, 
    pid_low UNSIGNED BIG INT NOT NULL, 
    image_id_high UNSIGNED BIG INT NOT NULL, 
    image_id_low UNSIGNED BIG INT NOT NULL, 
    tag_id_high UNSIGNED BIG INT NOT NULL, 
    tag_id_low UNSIGNED BIG INT NOT NULL, 
    CONSTRAINT KeyConstraint UNIQUE …