Goal

At #935 , I missed a few edge cases like,

1. dropping index named as PRIMARY

DROP INDEX Bar.PRIMARY;

=> should get cannot drop primary index error

2. creating index named as PRIMARY

CREATE INDEX Primary ON Foo (id);

=> should get cannot create index with reserved name "Primary" error

Todo

• test: add cases for DROP and CREATE PRIMARY
• feat: implement cannot drop primary
• feat: implement cannot create index named as PRIMARY

Next

• Implement Primary key with physical index
• It is expected to drop and create primary index manually in future.