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Improvements on sub-query projection reference.

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This commit is contained in:
go-jet 2019-06-18 14:35:32 +02:00
parent d9ffa86453
commit 565b670188
17 changed files with 512 additions and 134 deletions
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41
sqlbuilder/set_statement.go
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@ -9,13 +9,14 @@ import (
type SetStatement interface {
Statement
Expression
hasRows()
ORDER_BY(clauses ...OrderByClause) SetStatement
LIMIT(limit int64) SetStatement
OFFSET(offset int64) SetStatement
AsTable(alias string) ExpressionTable
projections() []projection
}
const (
@ -51,7 +52,6 @@ func EXCEPT_ALL(selects ...rowsType) SetStatement {
// Similar to selectStatementImpl, but less complete
type setStatementImpl struct {
expressionInterfaceImpl
isRowsType
operator string
selects []rowsType
@ -75,23 +75,30 @@ func newSetStatementImpl(operator string, all bool, selects ...rowsType) SetStat
return setStatement
}
func (us *setStatementImpl) ORDER_BY(orderBy ...OrderByClause) SetStatement {
us.orderBy = orderBy
return us
func (s *setStatementImpl) ORDER_BY(orderBy ...OrderByClause) SetStatement {
s.orderBy = orderBy
return s
}
func (us *setStatementImpl) LIMIT(limit int64) SetStatement {
us.limit = limit
return us
func (s *setStatementImpl) LIMIT(limit int64) SetStatement {
s.limit = limit
return s
}
func (us *setStatementImpl) OFFSET(offset int64) SetStatement {
us.offset = offset
return us
func (s *setStatementImpl) OFFSET(offset int64) SetStatement {
s.offset = offset
return s
}
func (us *setStatementImpl) AsTable(alias string) ExpressionTable {
return newExpressionTable(us.parent, alias)
func (s *setStatementImpl) projections() []projection {
if len(s.selects) > 0 {
return s.selects[0].projections()
}
return []projection{}
}
func (s *setStatementImpl) AsTable(alias string) ExpressionTable {
return newExpressionTable(s.parent, alias, s.projections())
}
func (s *setStatementImpl) serialize(statement statementType, out *queryData, options ...serializeOption) error {
@ -178,10 +185,10 @@ func (s *setStatementImpl) serializeImpl(out *queryData) error {
return nil
}
func (us *setStatementImpl) Sql() (query string, args []interface{}, err error) {
func (s *setStatementImpl) Sql() (query string, args []interface{}, err error) {
queryData := &queryData{}
err = us.serializeImpl(queryData)
err = s.serializeImpl(queryData)
if err != nil {
return
@ -199,6 +206,6 @@ func (s *setStatementImpl) Query(db execution.Db, destination interface{}) error
return Query(s, db, destination)
}
func (u *setStatementImpl) Exec(db execution.Db) (res sql.Result, err error) {
return Exec(u, db)
func (s *setStatementImpl) Exec(db execution.Db) (res sql.Result, err error) {
return Exec(s, db)
}