func (parser *ParserImpl) transformTargetEntry(restarget *ResTarget) (tle *TargetEntry, err error) {
tle = &TargetEntry{}
err = nil
tle.Expr, err = parser.transformExpr(restarget.val)
/* ResName, ResNo */
tle.ResName = system.Name(restarget.name)
tle.ResJunk = false
return
}
func (s *MySuite) TestYYParse_1(c *C) {
query := " select col1, col2 FROM tab1"
lexer := newLexer(query)
yyParse(lexer)
node, ok := TopList[0].(*SelectStmt)
if !ok {
c.Error("node is not SelectStmt")
}
c.Check(node.targetList[0].name, Equals, "col1")
c.Check(node.targetList[1].name, Equals, "col2")
c.Check(node.fromList[0].(*RangeVar).RelationName, Equals, system.Name("tab1"))
}
func (s *MySuite) TestHeapTuple(c *C) {
values := []system.Datum{
system.Int4(1),
system.Oid(999990),
nil,
system.Name("fooname"),
}
tupdesc := &TupleDesc{
Attrs: []*Attribute{
{
Name: "col1",
TypeId: system.Int4Type,
},
{
Name: "col2",
TypeId: system.OidType,
},
{
Name: "col3nil",
TypeId: system.NameType,
},
{
Name: "col4",
TypeId: system.NameType,
},
},
}
initTupleDesc(tupdesc)
htuple := FormHeapTuple(values, tupdesc)
c.Check(htuple.Fetch(1), Equals, values[0])
c.Check(htuple.Fetch(2), Equals, values[1])
c.Check(htuple.Fetch(3), Equals, values[2])
c.Check(htuple.Fetch(4), Equals, values[3])
c.Check(htuple.data.Oid(), Equals, system.InvalidOid)
c.Check(htuple.data.HasNulls(), Equals, true)
c.Check(htuple.data.Natts(), Equals, system.AttrNumber(4))
}