Method normalizeCheckExprString

schema/generator.go:5070–5083

normalizeCheckExprString returns a normalized string representation of a CHECK constraint expression For PostgreSQL, this converts IN (a,b,c) to = ANY (ARRAY[a,b,c])

(expr parser.Expr)

// normalizeCheckExprString returns a normalized string representation of a CHECK constraint expression
// For PostgreSQL, this converts IN (a,b,c) to = ANY (ARRAY[a,b,c])
func (g *Generator) normalizeCheckExprString(expr parser.Expr) string {
	if g.mode == GeneratorModePostgres {
		normalized := normalizeCheckExpr(expr, g.mode)
		// Unwrap outermost parentheses for consistent output (comparison does this too)
		normalized = unwrapOutermostParenExpr(normalized)
		// In quote-aware mode, use formatExprQuoteAware to preserve quoting in column names
		// In legacy mode, use parser.String for backward compatibility (no quoting in expressions)
		if !g.config.LegacyIgnoreQuotes {
			return g.formatExprQuoteAware(normalized)
		}
		return parser.String(normalized)
	}
	return parser.String(expr)
}

// formatExprQuoteAware formats an expression with quote-aware column name handling.
// This walks the AST and uses escapeSQLIdent for column names to preserve quoting.