presto-postgresql/src/main/java/io/prestosql/plugin/postgresql/PostgreSqlConfig.java/PostgreSqlConfig/setArrayMapping
class PostgreSqlConfig:    @Config("postgresql.array-mapping")
    @LegacyConfig("postgresql.experimental.array-mapping")
    public PostgreSqlConfig setArrayMapping(ArrayMapping arrayMapping)
    {
        this.arrayMapping = arrayMapping;
        return this;
    }