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lines changed Original file line number Diff line number Diff line change @@ -854,19 +854,25 @@ func Walk(f Visitor, node nodes.Node) {
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case nodes.RangeFunction :
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walkn (f , n .Functions )
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- walkn (f , n .Alias )
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+ if n .Alias != nil {
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+ walkn (f , * n .Alias )
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+ }
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walkn (f , n .Coldeflist )
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case nodes.RangeSubselect :
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walkn (f , n .Subquery )
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- walkn (f , n .Alias )
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+ if n .Alias != nil {
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+ walkn (f , * n .Alias )
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+ }
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case nodes.RangeTableFunc :
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walkn (f , n .Docexpr )
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walkn (f , n .Rowexpr )
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walkn (f , n .Namespaces )
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walkn (f , n .Columns )
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- walkn (f , n .Alias )
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+ if n .Alias != nil {
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+ walkn (f , * n .Alias )
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+ }
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case nodes.RangeTableFuncCol :
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if n .TypeName != nil {
@@ -889,7 +895,9 @@ func Walk(f Visitor, node nodes.Node) {
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walkn (f , n .ValuesLists )
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walkn (f , n .Coltypes )
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walkn (f , n .Colcollations )
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- walkn (f , n .Alias )
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+ if n .Alias != nil {
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+ walkn (f , * n .Alias )
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+ }
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walkn (f , n .Eref )
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walkn (f , n .SecurityQuals )
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