functions

type Callbacks struct {
	// Check is the callback for check constraints.
	Check func(ctx *sql.Context, schema ItemSchema, table ItemTable, check ItemCheck) (cont bool, err error)
	// ColumnDefault is the callback for column defaults.
	ColumnDefault func(ctx *sql.Context, schema ItemSchema, table ItemTable, check ItemColumnDefault) (cont bool, err error)
	// ForeignKey is the callback for foreign keys.
	ForeignKey func(ctx *sql.Context, schema ItemSchema, table ItemTable, foreignKey ItemForeignKey) (cont bool, err error)
	// Index is the callback for indexes.
	Index func(ctx *sql.Context, schema ItemSchema, table ItemTable, index ItemIndex) (cont bool, err error)
	// Schema is the callback for schemas/namespaces.
	Schema func(ctx *sql.Context, schema ItemSchema) (cont bool, err error)
	// Sequence is the callback for sequences.
	Sequence func(ctx *sql.Context, schema ItemSchema, sequence ItemSequence) (cont bool, err error)
	// Table is the callback for tables.
	Table func(ctx *sql.Context, schema ItemSchema, table ItemTable) (cont bool, err error)
	// View is the callback for views.
	View func(ctx *sql.Context, schema ItemSchema, view ItemView) (cont bool, err error)
	// SearchSchemas represents the search path. If left empty, then all schemas are iterated over. If supplied, then
	// schemas are iterated by their given order.
	SearchSchemas []string
}

type ColumnWithIndex struct {
	Column      *sql.Column
	ColumnIndex int
}

type ItemCheck struct {
	OID  id.Check
	Item sql.CheckDefinition
}

type ItemColumnDefault struct {
	OID  id.ColumnDefault
	Item ColumnWithIndex
}

type ItemForeignKey struct {
	OID  id.ForeignKey
	Item sql.ForeignKeyConstraint
}

type ItemIndex struct {
	OID  id.Index
	Item sql.Index
}

type ItemSchema struct {
	OID  id.Namespace
	Item sql.DatabaseSchema
}

type ItemSequence struct {
	OID  id.Sequence
	Item *sequences.Sequence
}

type ItemTable struct {
	OID  id.Table
	Item sql.Table
}

type ItemView struct {
	OID  id.View
	Item sql.ViewDefinition
}