[
        {"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": "program_name",      "sourceTable": "computed", "sourceColumn": "getProgramField:name",                  "dataType": "string", "isCommon": false, "isNullable": false},
        {"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": "wati_portal_link",  "sourceTable": "computed", "sourceColumn": "getWatiPortalSessionJoinLink",           "dataType": "string", "isCommon": true,  "isNullable": true, "defaultValue": ""},
        {"keyName": "wati_zoom_link",    "sourceTable": "computed", "sourceColumn": "getWatiSessionJoinUrl",                  "dataType": "string", "isCommon": true,  "isNullable": true},
        {"keyName": "guidelines_pdf",    "sourceTable": "computed", "sourceColumn": "getSessionGuidelinesPdfUrl",            "dataType": "string", "isCommon": true,  "isNullable": true, "defaultValue": ""}
    ]