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Generic dialect support. (MySQL and Postgres)

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This commit is contained in:
go-jet 2019-07-28 14:57:02 +02:00
parent 043a0dc4c0
commit 5dda5e1e11
27 changed files with 440 additions and 92 deletions
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31
select_statement.go
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@ -18,7 +18,7 @@ var (
// SelectStatement is interface for SQL SELECT statements
type SelectStatement interface {
Statement
Expression
expression
DISTINCT() SelectStatement
FROM(table ReadableTable) SelectStatement
@ -261,10 +261,29 @@ func (s *selectStatementImpl) serializeImpl(out *sqlBuilder) error {
return nil
}
func (s *selectStatementImpl) Sql() (query string, args []interface{}, err error) {
queryData := sqlBuilder{}
func (s *selectStatementImpl) accept(visitor visitor) {
visitor.visit(s)
err = s.serializeImpl(&queryData)
if s.table != nil {
s.table.accept(visitor)
}
if s.where != nil {
s.where.accept(visitor)
}
if s.having != nil {
s.having.accept(visitor)
}
}
func (s *selectStatementImpl) Sql(dialect ...Dialect) (query string, args []interface{}, err error) {
queryData := &sqlBuilder{
dialect: detectDialect(s, dialect...),
}
err = s.serializeImpl(queryData)
if err != nil {
return "", nil, err
@ -275,8 +294,8 @@ func (s *selectStatementImpl) Sql() (query string, args []interface{}, err error
return
}
func (s *selectStatementImpl) DebugSql() (query string, err error) {
return debugSql(s.parent)
func (s *selectStatementImpl) DebugSql(dialect ...Dialect) (query string, err error) {
return debugSql(s.parent, dialect...)
}
func (s *selectStatementImpl) Query(db execution.DB, destination interface{}) error {