Add Column
Current Schema
CREATE TABLE tags (
created_at DATETIME,
update_at DATETIME,
id CHAR(32) NOT NULL,
group_id CHAR(32) NOT NULL,
name VARCHAR NOT NULL,
slug VARCHAR NOT NULL,
PRIMARY KEY (id),
FOREIGN KEY(group_id) REFERENCES groups (id),
CONSTRAINT tags_slug_group_id_key UNIQUE (slug, group_id)
)