datum_lower datum_textcat datum_upper textcat_base_ttext textcat_ttext_base textcat_ttext_ttext textfunc_ttext textfunc_ttext_text textfunc_ttext_ttext ttext_lower ttext_upper

textfunc_ttext() static Temporal* textfunc_ttext ( Temporal *  temp, Datum(*)(Datum value)  func  ) static Applies the function to transform the temporal text value.