plan

type DeleteOnMultiDBPlan struct {
	Stmt  *ast.DeleteStmt
	Plans []*DeleteOnSingleDBPlan
}

type DeleteOnSingleDBPlan struct {
	Database string
	Tables   []string
	Stmt     *ast.DeleteStmt
	Args     []interface{}
	Executor proto.DBGroupExecutor
}

type InsertPlan struct {
	Database string
	Table    string
	Columns  []string
	Stmt     *ast.InsertStmt
	Args     []interface{}
	Executor proto.DBGroupExecutor
}

type Limit struct {
	ArgsWithoutLimit []interface{}
	Offset           int64
	Count            int64
}

type OrderByCell struct {
	Index int
	Val   interface{}
	Next  bool
	Row   proto.Row
}

type OrderByCells []*OrderByCell

type QueryOnMultiDBPlan struct {
	Stmt  *ast.SelectStmt
	Plans []*QueryOnSingleDBPlan
}

type QueryOnSingleDBPlan struct {
	Database string
	Tables   []string
	Stmt     *ast.SelectStmt
	Limit    *Limit
	Args     []interface{}
	Executor proto.DBGroupExecutor
}

type ResultWithErr struct {
	Database string
	Result   proto.Result
	Warning  uint16
	Error    error
}

type ResultWithErrs []*ResultWithErr

type UpdateOnMultiDBPlan struct {
	Stmt  *ast.UpdateStmt
	Plans []*UpdateOnSingleDBPlan
}

type UpdateOnSingleDBPlan struct {
	Database string
	Tables   []string
	Stmt     *ast.UpdateStmt
	Args     []interface{}
	Executor proto.DBGroupExecutor
}