dialect

type Base struct{}

type Column struct {
	Kind      Kind
	Length    int
	Precision int
	Scale     int
	Unsigned  bool
	Enum      []string
}

type DatePart string

type Dialect interface {
	Name() string
	Dialector(dsn string) gorm.Dialector
	// DriverName is the database/sql driver name; DriverDSN adapts the DSN for it.
	// FromConn builds a Dialector on top of an existing pool (used for AfterCreate hooks,
	// acquire timeouts and replicas).
	DriverName() string
	DriverDSN(dsn string) string
	FromConn(conn gorm.ConnPool) gorm.Dialector
	Quote(ident string) string
	ColumnType(c Column) string
	// AutoIncrement returns the full column definition (after the column name) for an auto-increment primary key.
	AutoIncrement(big bool) string
	BoolLiteral(b bool) string
	AddColumnKeyword() string
	RenameTable(from, to string) string
	RenameColumn(table, from, to string) string
	DropIndex(table, name string) string
	DropConstraint(table, name string) string
	DropForeign(table, name string) string
	SupportsAddConstraint() bool
	SupportsIndexes() bool
	NativeEnum() bool
	TransactionalDDL() bool
}

type Features interface {
	// LockSQL is the clause appended to a SELECT, e.g. "FOR UPDATE".
	LockSQL(mode LockMode) string
	// JSONExtract reads the text at a JSON path (already validated: dot-separated names or indexes).
	JSONExtract(col string, path []string) string
	// DatePart reduces a date/time column to its date, year, month or day.
	DatePart(col string, part DatePart) string
	// FullTextMatch is a boolean expression with exactly one "?" for the search text.
	// boolean asks for operator syntax (+word -word "phrase") where the database has it.
	FullTextMatch(cols []string, boolean bool) string
	// FullTextIndex is the statement that creates an index FullTextMatch can use.
	FullTextIndex(table, name string, cols []string) string
}

type Kind string

type LockMode string