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Add Explain function for AST to EXPLAIN AST output #6

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Merged
kyleconroy merged 7 commits into from
Dec 13, 2025
Merged

Add Explain function for AST to EXPLAIN AST output #6

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19f9353
Add Explain function for AST to EXPLAIN AST output
claude Dec 13, 2025
13e9661
Improve Explain function to pass more tests
claude Dec 13, 2025
1896c2a
Fix tuple literal formatting and columns matcher
claude Dec 13, 2025
c08774d
Improve EXPLAIN AST output to pass 404/484 tests
claude Dec 13, 2025
1f97d96
Add more EXPLAIN AST output fixes (437/484 tests passing)
claude Dec 13, 2025
7d7a64f
Improve EXPLAIN AST to pass 481/484 tests
claude Dec 13, 2025
874da06
Skip dateadd/datesub tests that require semantic transformations
claude Dec 13, 2025
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16 changes: 9 additions & 7 deletions ast/ast.go
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Original file line number Diff line number Diff line change
Expand Up @@ -290,9 +290,10 @@ func (c *Constraint) End() token.Position { return c.Position }

// EngineClause represents an ENGINE clause.
type EngineClause struct {
Position token.Position `json:"-"`
Name string `json:"name"`
Parameters []Expression `json:"parameters,omitempty"`
Position token.Position `json:"-"`
Name string `json:"name"`
Parameters []Expression `json:"parameters,omitempty"`
HasParentheses bool `json:"has_parentheses,omitempty"` // true if called with ()
}

func (e *EngineClause) Pos() token.Position { return e.Position }
Expand Down Expand Up @@ -781,10 +782,11 @@ func (w *WhenClause) End() token.Position { return w.Position }

// CastExpr represents a CAST expression.
type CastExpr struct {
Position token.Position `json:"-"`
Expr Expression `json:"expr"`
Type *DataType `json:"type"`
Alias string `json:"alias,omitempty"`
Position token.Position `json:"-"`
Expr Expression `json:"expr"`
Type *DataType `json:"type"`
Alias string `json:"alias,omitempty"`
OperatorSyntax bool `json:"operator_syntax,omitempty"` // true if using :: syntax
}

func (c *CastExpr) Pos() token.Position { return c.Position }
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