schema

type Column struct {
	Name    string
	Type    string
	NotNull bool
	Default string
	PK      int
}

type ForeignKey struct {
	From  string // column in this table
	Table string // referenced table
	To    string // referenced column
}

type Index struct {
	Name   string
	Table  string
	Unique bool
	SQL    string
}

type Schema struct {
	Tables []Table
}

type Table struct {
	Name        string
	Columns     []Column
	Indexes     []Index
	ForeignKeys []ForeignKey
}