Function ExtractColumns

pkg/gosqlx/extract.go:302–316

ExtractColumns extracts all column references from an AST. This function traverses the AST and collects column references from: - SELECT lists - WHERE conditions - GROUP BY clauses - ORDER BY clauses - JOIN conditions - HAVING clauses Returns a deduplicated slice of column names (without table qua

(astNode *ast.AST)

//	columns := gosqlx.ExtractColumns(ast)
//	// columns = ["name", "email", "active", "created_at"]
func ExtractColumns(astNode *ast.AST) []string {
	if astNode == nil {
		return nil
	}

	collector := &columnCollector{
		columns: make(map[string]bool),
	}

	for _, stmt := range astNode.Statements {
		collector.collectFromNode(stmt)
	}

	return collector.toSlice()
}

// ExtractColumnsQualified extracts all column references with their table qualifiers.
//