34 lines
625 B
Go
34 lines
625 B
Go
package jet
|
|
|
|
type alias struct {
|
|
expression Expression
|
|
alias string
|
|
}
|
|
|
|
func newAlias(expression Expression, aliasName string) Projection {
|
|
return &alias{
|
|
expression: expression,
|
|
alias: aliasName,
|
|
}
|
|
}
|
|
|
|
func (a *alias) fromImpl(subQuery SelectTable) Projection {
|
|
column := newColumn(a.alias, "", nil)
|
|
column.Parent = &column
|
|
column.subQuery = subQuery
|
|
|
|
return &column
|
|
}
|
|
|
|
func (a *alias) serializeForProjection(statement StatementType, out *SqlBuilder) error {
|
|
err := a.expression.serialize(statement, out)
|
|
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
out.WriteString("AS")
|
|
out.WriteAlias(a.alias)
|
|
|
|
return nil
|
|
}
|