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parser: fix limit lost in SetOprStmt (#49898) #49931

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merged 1 commit into from
Jan 4, 2024
Merged

parser: fix limit lost in SetOprStmt (#49898) #49931

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29 changes: 29 additions & 0 deletions parser/ast/dml.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1562,6 +1562,7 @@ func (n *SetOprSelectList) Restore(ctx *format.RestoreCtx) error {
return errors.Annotate(err, "An error occurred while restore SetOprSelectList.With")
}
}

for i, stmt := range n.Selects {
switch selectStmt := stmt.(type) {
case *SelectStmt:
Expand All @@ -1583,6 +1584,20 @@ func (n *SetOprSelectList) Restore(ctx *format.RestoreCtx) error {
ctx.WritePlain(")")
}
}

if n.OrderBy != nil {
ctx.WritePlain(" ")
if err := n.OrderBy.Restore(ctx); err != nil {
return errors.Annotate(err, "An error occurred while restore SetOprSelectList.OrderBy")
}
}

if n.Limit != nil {
ctx.WritePlain(" ")
if err := n.Limit.Restore(ctx); err != nil {
return errors.Annotate(err, "An error occurred while restore SetOprSelectList.Limit")
}
}
return nil
}

Expand All @@ -1607,6 +1622,20 @@ func (n *SetOprSelectList) Accept(v Visitor) (Node, bool) {
}
n.Selects[i] = node
}
if n.OrderBy != nil {
node, ok := n.OrderBy.Accept(v)
if !ok {
return n, false
}
n.OrderBy = node.(*OrderByClause)
}
if n.Limit != nil {
node, ok := n.Limit.Accept(v)
if !ok {
return n, false
}
n.Limit = node.(*Limit)
}
return v.Leave(n)
}

Expand Down
47 changes: 25 additions & 22 deletions parser/parser.go
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -19393,15 +19393,19 @@ yynewstate:
}
var setOprList2 []ast.Node
var with2 *ast.WithClause
var limit2 *ast.Limit
var orderBy2 *ast.OrderByClause
switch x := yyS[yypt-1].expr.(*ast.SubqueryExpr).Query.(type) {
case *ast.SelectStmt:
setOprList2 = []ast.Node{x}
with2 = x.With
case *ast.SetOprStmt:
setOprList2 = x.SelectList.Selects
with2 = x.With
limit2 = x.Limit
orderBy2 = x.OrderBy
}
nextSetOprList := &ast.SetOprSelectList{Selects: setOprList2, With: with2}
nextSetOprList := &ast.SetOprSelectList{Selects: setOprList2, With: with2, Limit: limit2, OrderBy: orderBy2}
nextSetOprList.AfterSetOperator = yyS[yypt-2].item.(*ast.SetOprType)
setOprList := append(setOprList1, nextSetOprList)
setOpr := &ast.SetOprStmt{SelectList: &ast.SetOprSelectList{Selects: setOprList}}
Expand All @@ -19417,15 +19421,19 @@ yynewstate:
}
var setOprList2 []ast.Node
var with2 *ast.WithClause
var limit2 *ast.Limit
var orderBy2 *ast.OrderByClause
switch x := yyS[yypt-1].expr.(*ast.SubqueryExpr).Query.(type) {
case *ast.SelectStmt:
setOprList2 = []ast.Node{x}
with2 = x.With
case *ast.SetOprStmt:
setOprList2 = x.SelectList.Selects
with2 = x.With
limit2 = x.Limit
orderBy2 = x.OrderBy
}
nextSetOprList := &ast.SetOprSelectList{Selects: setOprList2, With: with2}
nextSetOprList := &ast.SetOprSelectList{Selects: setOprList2, With: with2, Limit: limit2, OrderBy: orderBy2}
nextSetOprList.AfterSetOperator = yyS[yypt-2].item.(*ast.SetOprType)
setOprList := append(setOprList1, nextSetOprList)
setOpr := &ast.SetOprStmt{SelectList: &ast.SetOprSelectList{Selects: setOprList}}
Expand All @@ -19441,15 +19449,19 @@ yynewstate:
}
var setOprList2 []ast.Node
var with2 *ast.WithClause
var limit2 *ast.Limit
var orderBy2 *ast.OrderByClause
switch x := yyS[yypt-2].expr.(*ast.SubqueryExpr).Query.(type) {
case *ast.SelectStmt:
setOprList2 = []ast.Node{x}
with2 = x.With
case *ast.SetOprStmt:
setOprList2 = x.SelectList.Selects
with2 = x.With
limit2 = x.Limit
orderBy2 = x.OrderBy
}
nextSetOprList := &ast.SetOprSelectList{Selects: setOprList2, With: with2}
nextSetOprList := &ast.SetOprSelectList{Selects: setOprList2, With: with2, Limit: limit2, OrderBy: orderBy2}
nextSetOprList.AfterSetOperator = yyS[yypt-3].item.(*ast.SetOprType)
setOprList := append(setOprList1, nextSetOprList)
setOpr := &ast.SetOprStmt{SelectList: &ast.SetOprSelectList{Selects: setOprList}}
Expand All @@ -19460,48 +19472,39 @@ yynewstate:
case 1793:
{
var setOprList []ast.Node
var with *ast.WithClause
switch x := yyS[yypt-1].expr.(*ast.SubqueryExpr).Query.(type) {
case *ast.SelectStmt:
setOprList = []ast.Node{x}
with = x.With
setOprList = []ast.Node{&ast.SetOprSelectList{Selects: []ast.Node{x}, With: x.With}}
case *ast.SetOprStmt:
setOprList = x.SelectList.Selects
with = x.With
setOprList = []ast.Node{&ast.SetOprSelectList{Selects: x.SelectList.Selects, With: x.With, Limit: x.Limit, OrderBy: x.OrderBy}}
}
setOpr := &ast.SetOprStmt{SelectList: &ast.SetOprSelectList{Selects: setOprList}, With: with}
setOpr := &ast.SetOprStmt{SelectList: &ast.SetOprSelectList{Selects: setOprList}}
setOpr.OrderBy = yyS[yypt-0].item.(*ast.OrderByClause)
parser.yyVAL.statement = setOpr
}
case 1794:
{
var setOprList []ast.Node
var with *ast.WithClause
switch x := yyS[yypt-1].expr.(*ast.SubqueryExpr).Query.(type) {
case *ast.SelectStmt:
setOprList = []ast.Node{x}
with = x.With
setOprList = []ast.Node{&ast.SetOprSelectList{Selects: []ast.Node{x}, With: x.With}}
case *ast.SetOprStmt:
setOprList = x.SelectList.Selects
with = x.With
setOprList = []ast.Node{&ast.SetOprSelectList{Selects: x.SelectList.Selects, With: x.With, Limit: x.Limit, OrderBy: x.OrderBy}}
}
setOpr := &ast.SetOprStmt{SelectList: &ast.SetOprSelectList{Selects: setOprList}, With: with}
setOpr := &ast.SetOprStmt{SelectList: &ast.SetOprSelectList{Selects: setOprList}}
setOpr.Limit = yyS[yypt-0].item.(*ast.Limit)
parser.yyVAL.statement = setOpr
}
case 1795:
{
var setOprList []ast.Node
var with *ast.WithClause
switch x := yyS[yypt-2].expr.(*ast.SubqueryExpr).Query.(type) {
case *ast.SelectStmt:
setOprList = []ast.Node{x}
with = x.With
setOprList = []ast.Node{&ast.SetOprSelectList{Selects: []ast.Node{x}, With: x.With}}
case *ast.SetOprStmt:
setOprList = x.SelectList.Selects
with = x.With
setOprList = []ast.Node{&ast.SetOprSelectList{Selects: x.SelectList.Selects, With: x.With, Limit: x.Limit, OrderBy: x.OrderBy}}
}
setOpr := &ast.SetOprStmt{SelectList: &ast.SetOprSelectList{Selects: setOprList}, With: with}
setOpr := &ast.SetOprStmt{SelectList: &ast.SetOprSelectList{Selects: setOprList}}
setOpr.OrderBy = yyS[yypt-1].item.(*ast.OrderByClause)
setOpr.Limit = yyS[yypt-0].item.(*ast.Limit)
parser.yyVAL.statement = setOpr
Expand Down Expand Up @@ -19533,7 +19536,7 @@ yynewstate:
case *ast.SelectStmt:
setOprList = []ast.Node{&ast.SetOprSelectList{Selects: []ast.Node{x}}}
case *ast.SetOprStmt:
setOprList = []ast.Node{&ast.SetOprSelectList{Selects: x.SelectList.Selects, With: x.With}}
setOprList = []ast.Node{&ast.SetOprSelectList{Selects: x.SelectList.Selects, With: x.With, Limit: x.Limit, OrderBy: x.OrderBy}}
}
parser.yyVAL.item = setOprList
}
Expand Down
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