[
        {"keyName": "session_name",       "sourceTable": "computed", "sourceColumn": "getTargetSessionField:name",             "dataType": "string", "isCommon": true,  "isNullable": false},
        {"keyName": "session_day_date",   "sourceTable": "computed", "sourceColumn": "getTargetSessionDayDate",                "dataType": "string", "isCommon": true,  "isNullable": true},
        {"keyName": "reg_name",           "sourceTable": "hdb_program_registration", "sourceColumn": "full_name",              "dataType": "string", "isCommon": false, "isNullable": false},
        {"keyName": "session_time",       "sourceTable": "computed", "sourceColumn": "getTargetSessionTime",                   "dataType": "string", "isCommon": true,  "isNullable": true},
        {"keyName": "session_login_time", "sourceTable": "computed", "sourceColumn": "getTargetSessionLoginTime",              "dataType": "string", "isCommon": true,  "isNullable": true},
        {"keyName": "portal_join_link",   "sourceTable": "computed", "sourceColumn": "getPortalSessionJoinLink",               "dataType": "string", "isCommon": true,  "isNullable": true, "defaultValue": ""},
        {"keyName": "zoom_join_link",     "sourceTable": "computed", "sourceColumn": "getTargetOnlineSessionField:join_url",   "dataType": "string", "isCommon": true,  "isNullable": true},
        {"keyName": "meeting_id",         "sourceTable": "computed", "sourceColumn": "getTargetOnlineSessionField:external_id","dataType": "string", "isCommon": true,  "isNullable": true},
        {"keyName": "meeting_passcode",   "sourceTable": "computed", "sourceColumn": "getTargetOnlineSessionField:password",   "dataType": "string", "isCommon": true,  "isNullable": true},
        {"keyName": "guidelines_pdf",     "sourceTable": "computed", "sourceColumn": "getSessionGuidelinesPdfUrl",             "dataType": "string", "isCommon": true,  "isNullable": true, "defaultValue": ""}
    ]