greenplumn UPC 代码
文件路径：/contrib/isn/UPC.h
/*
* ISSN.h
* PostgreSQL type definitions for ISNs (ISBN, ISMN, ISSN, EAN13, UPC)
*
* No information available for UPC prefixes
*
*
* IDENTIFICATION
* contrib/isn/UPC.h
*
*/
/* where the digit set begins, and how many of them are in the table */
const unsigned UPC_index[10][2] = {
{0, 0},
{0, 0},
{0, 0},
{0, 0},
{0, 0},
{0, 0},
{0, 0},
{0, 0},
{0, 0},
{0, 0},
};
const char *UPC_range[][2] = {
{NULL, NULL}
};