asc_tolower asc_toupper datum_lower datum_textcat datum_upper pg_lower pg_upper pnstrdup text_catenate textfunc_ttext textfunc_ttext_text textfunc_ttext_ttext

datum_textcat() Datum datum_textcat ( Datum  l, Datum  r  ) Return the concatenation of the two text values. Temporal text functions: textcat, lower, upper.