Interface AST

backend/plugin/parser/base/ast.go:9–15

AST is the interface that all parser AST types must implement. Each parser package defines its own concrete AST type with parser-specific fields.

// AST is the interface that all parser AST types must implement.
// Each parser package defines its own concrete AST type with parser-specific fields.
type AST interface {
	// ASTStartPosition returns the 1-based position where this SQL statement starts
	// in the original multi-statement input. Used for error position reporting.
	// Returns nil if position is unknown.
	// Named to avoid collision with protobuf-generated GetStartPosition methods.
	ASTStartPosition() *storepb.Position
}