query

type Condition interface {
	Opt() (opt string)
	Sql(args *[]interface{}) (sql string)
}

type FieldMap map[string][]interface{}

type Query interface {
	// Select Select表达式
	Select(columns ...string) Query
	// From From表达式
	From(table string) Query
	// Where Where表达式
	Where(where Where) Query
	// And 附加And where
	And(condition Condition) Query
	// Or 附加Or where
	Or(condition Condition) Query
	// Group Group表达式
	Group(fields ...string) Query
	// Having Having表达式
	Having(having string) Query
	// Order Order表达式
	Order(orders ...string) Query
	// Offset Offset表达式
	Offset(offset int64) Query
	// Limit Limit表达式
	Limit(limit int64) Query
	// Sql 生成sql
	Sql(arguments *[]interface{}) (sql string)
	// Close 释放Query
	Close()
}

type Where interface {
	HasWhere() bool
	And(condition Condition) Where
	Or(condition Condition) Where
	Sql(args *[]interface{}) (sql string)
	Reset()
}