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sqlparser: Add support for TIMESTAMPADD #13314

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Jun 14, 2023
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sqlparser: Add support for TIMESTAMPADD #13314

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11 changes: 5 additions & 6 deletions go/vt/sqlparser/ast.go
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Original file line number Diff line number Diff line change
Expand Up @@ -2343,12 +2343,11 @@ type (
Expr Expr
}

// TimestampFuncExpr represents the function and arguments for TIMESTAMP{ADD,DIFF} functions.
TimestampFuncExpr struct {
Name string
// TimestampDiffExpr represents the function and arguments for TIMESTAMPDIFF functions.
TimestampDiffExpr struct {
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This now only has TIMESTAMPDIFF left, so make it specialized for that. It might be something we want to treat as an interval or not in the future, but not sure yet so leaving it here for now. Did change the parsing here as well though to match TIMESTAMPADD for the interval types it supports.

Expr1 Expr
Expr2 Expr
Unit string
Unit IntervalType
}

// ExtractFuncExpr represents the function and arguments for EXTRACT(YEAR FROM '2019-07-02') type functions.
Expand Down Expand Up @@ -3140,7 +3139,7 @@ func (*UnaryExpr) iExpr() {}
func (*IntroducerExpr) iExpr() {}
func (*CollateExpr) iExpr() {}
func (*FuncExpr) iExpr() {}
func (*TimestampFuncExpr) iExpr() {}
func (*TimestampDiffExpr) iExpr() {}
func (*ExtractFuncExpr) iExpr() {}
func (*WeightStringFuncExpr) iExpr() {}
func (*CurTimeFuncExpr) iExpr() {}
Expand Down Expand Up @@ -3236,7 +3235,7 @@ func (*GeomFromGeoJSONExpr) iExpr() {}

// iCallable marks all expressions that represent function calls
func (*FuncExpr) iCallable() {}
func (*TimestampFuncExpr) iCallable() {}
func (*TimestampDiffExpr) iCallable() {}
func (*ExtractFuncExpr) iCallable() {}
func (*WeightStringFuncExpr) iCallable() {}
func (*CurTimeFuncExpr) iCallable() {}
Expand Down
16 changes: 8 additions & 8 deletions go/vt/sqlparser/ast_clone.go
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14 changes: 7 additions & 7 deletions go/vt/sqlparser/ast_copy_on_rewrite.go
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29 changes: 14 additions & 15 deletions go/vt/sqlparser/ast_equals.go
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6 changes: 4 additions & 2 deletions go/vt/sqlparser/ast_format.go
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Expand Up @@ -1392,8 +1392,8 @@ func (node *IntroducerExpr) Format(buf *TrackedBuffer) {
}

// Format formats the node.
func (node *TimestampFuncExpr) Format(buf *TrackedBuffer) {
buf.astPrintf(node, "%#s(%#s, %v, %v)", node.Name, node.Unit, node.Expr1, node.Expr2)
func (node *TimestampDiffExpr) Format(buf *TrackedBuffer) {
buf.astPrintf(node, "timestampdiff(%#s, %v, %v)", node.Unit.ToString(), node.Expr1, node.Expr2)
}

// Format formats the node.
Expand Down Expand Up @@ -1475,6 +1475,8 @@ func (node *IntervalDateExpr) Format(buf *TrackedBuffer) {
buf.astPrintf(node, "interval %l %#s + %r", node.Interval, node.Unit.ToString(), node.Date)
case IntervalDateExprBinarySub:
buf.astPrintf(node, "%l - interval %r %#s", node.Date, node.Interval, node.Unit.ToString())
case IntervalDateExprTimestampadd:
buf.astPrintf(node, "timestampadd(%#s, %v, %v)", node.Unit.ToString(), node.Interval, node.Date)
}
}

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15 changes: 11 additions & 4 deletions go/vt/sqlparser/ast_format_fast.go
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4 changes: 3 additions & 1 deletion go/vt/sqlparser/ast_funcs.go
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Expand Up @@ -2362,7 +2362,7 @@ func getAliasedTableExprFromTableName(tblName TableName) *AliasedTableExpr {

func (node *IntervalDateExpr) IsSubtraction() bool {
switch node.Syntax {
case IntervalDateExprDateAdd, IntervalDateExprAdddate, IntervalDateExprBinaryAdd, IntervalDateExprBinaryAddLeft:
case IntervalDateExprDateAdd, IntervalDateExprAdddate, IntervalDateExprBinaryAdd, IntervalDateExprBinaryAddLeft, IntervalDateExprTimestampadd:
return false
case IntervalDateExprDateSub, IntervalDateExprSubdate, IntervalDateExprBinarySub:
return true
Expand Down Expand Up @@ -2391,6 +2391,8 @@ func (node *IntervalDateExpr) FnName() string {
return "adddate"
case IntervalDateExprSubdate:
return "subdate"
case IntervalDateExprTimestampadd:
return "timestampadd"
case IntervalDateExprBinaryAdd, IntervalDateExprBinaryAddLeft:
return "<arithmetic interval addition>"
case IntervalDateExprBinarySub:
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18 changes: 9 additions & 9 deletions go/vt/sqlparser/ast_rewrite.go
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14 changes: 7 additions & 7 deletions go/vt/sqlparser/ast_visit.go
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8 changes: 2 additions & 6 deletions go/vt/sqlparser/cached_size.go
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1 change: 1 addition & 0 deletions go/vt/sqlparser/constants.go
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Expand Up @@ -1014,4 +1014,5 @@ const (
IntervalDateExprBinaryAdd
IntervalDateExprBinaryAddLeft
IntervalDateExprBinarySub
IntervalDateExprTimestampadd
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IntervalDateExprTimestampadd => IntervalDateExprTimestampAdd

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It's actually deliberate to match how MySQL names the functions. It doesn't use a _ separator in TIMESTAMPADD. We do the same for ADDDATE vs. DATE_ADD for example.

)
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