sqlplus: list query result one column per console row - bash way

#!/bin/bash
# transform horizontal sqlplus data in vertical
# vsqlplus "owner/password@alias" "SELECT * FROM TABLE_NAME;";
#
# PS1: DO NOT WORK WITH SH ONLY WITH BASH!
# PS2: USE ";" AT END OF QUERY
# PS3: ALWAYS USE NAMED COLUMNS
#      SELECT COUNT(*) FROM TABLE - DO NOT WORK
#      SELECT COUNT(*) AS TOTAL FROM TABLE - DO WORK

CONN_STR="$1";
SQL_QUERY="$2";

function vsplit(){
        CONN_STR="$1";
        SQL_QUERY="$2";
        cn=0;
        ROWNUM=-2;
        # echo "EXECUTANDO QUERY \"${SQL_QUERY}\""
        # echo "CONECTADO AO BANCO \"${CONN_STR}\""
        # sqlplus -s "${CONN_STR}" < <( echo "select sysdate from dual;" );
        sqlplus -s "${CONN_STR}" < <(
                echo "set feedback off";
                echo "set colsep \"'\"";
                echo "set lines 32676";
                echo "set pages 8000";
                echo "set timing off";
                echo "${SQL_QUERY}";
                echo "EXIT" ) |
        sed "/^$/d" |
        tr -d '\t' |
        tr -s ' ' |
        while read cols;
        do
                ((++ROWNUM == -1)) &&
                eval "array_cols=( $(echo ${cols} | tr \' ' ') )";
                (( ROWNUM > 0 )) && (
                        echo "ROWNUM=$ROWNUM";
                        for (( c = 0; c < ${#array_cols[*]}; c++ ));
                        do
                                echo " ${array_cols[(c) % ${#array_cols[*]}]}='$(echo "$cols"|cut -d\' -f$((c+1)) )'";
                        done;
                )
        done;
};

# vsplit "${CONN_STR}" "${SQL_QUERY}";