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122 lines
2.7 KiB
C
122 lines
2.7 KiB
C
/* -------------------------------------------------------------------------
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* pg_dumplo
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*
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* $PostgreSQL: pgsql/contrib/pg_dumplo/lo_import.c,v 1.11 2004/11/28 23:49:49 tgl Exp $
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*
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* Karel Zak 1999-2004
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* -------------------------------------------------------------------------
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*/
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#include "postgres_fe.h"
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#include <fcntl.h>
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#include <errno.h>
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#include <time.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include "libpq-fe.h"
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#include "libpq/libpq-fs.h"
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#include "pg_dumplo.h"
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extern int errno;
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void
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pglo_import(LODumpMaster * pgLO)
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{
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LOlist loa;
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Oid new_oid;
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int ret, line=0;
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char tab[MAX_TABLE_NAME],
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attr[MAX_ATTR_NAME],
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sch[MAX_SCHEMA_NAME],
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path[BUFSIZ],
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lo_path[BUFSIZ],
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Qbuff[QUERY_BUFSIZ];
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while (fgets(Qbuff, QUERY_BUFSIZ, pgLO->index))
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{
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line++;
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if (*Qbuff == '#')
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continue;
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if (!pgLO->remove && !pgLO->quiet)
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printf(Qbuff);
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if ((ret=sscanf(Qbuff, "%u\t%s\t%s\t%s\t%s\n", &loa.lo_oid, tab, attr, path, sch)) < 5)
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{
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/* backward compatible mode */
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ret = sscanf(Qbuff, "%u\t%s\t%s\t%s\n", &loa.lo_oid, tab, attr, path);
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strcpy(sch, "public");
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}
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if (ret < 4)
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{
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fprintf(stderr, "%s: index file reading failed at line %d\n", progname, line);
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PQexec(pgLO->conn, "ROLLBACK");
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fprintf(stderr, "\n%s: ROLLBACK\n", progname);
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exit(RE_ERROR);
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}
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loa.lo_schema = sch;
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loa.lo_table = tab;
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loa.lo_attr = attr;
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if (path && *path=='/')
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/* absolute path */
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snprintf(lo_path, BUFSIZ, "%s", path);
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else
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snprintf(lo_path, BUFSIZ, "%s/%s", pgLO->space, path);
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/*
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* Import LO
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*/
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if ((new_oid = lo_import(pgLO->conn, lo_path)) == 0)
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{
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fprintf(stderr, "%s: %s\n", progname, PQerrorMessage(pgLO->conn));
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PQexec(pgLO->conn, "ROLLBACK");
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fprintf(stderr, "\n%s: ROLLBACK\n", progname);
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exit(RE_ERROR);
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}
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if (pgLO->remove)
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{
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notice(pgLO, FALSE);
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if (lo_unlink(pgLO->conn, loa.lo_oid) < 0)
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fprintf(stderr, "%s: can't remove LO %u:\n%s",
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progname, loa.lo_oid, PQerrorMessage(pgLO->conn));
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else if (!pgLO->quiet)
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printf("remove old %u and create new %u\n",
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loa.lo_oid, new_oid);
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notice(pgLO, TRUE);
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}
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pgLO->counter++;
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/*
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* UPDATE oid in tab
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*/
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snprintf(Qbuff, QUERY_BUFSIZ,
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"UPDATE \"%s\".\"%s\" SET \"%s\"=%u WHERE \"%s\"=%u",
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loa.lo_schema, loa.lo_table, loa.lo_attr, new_oid, loa.lo_attr, loa.lo_oid);
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/*fprintf(stderr, Qbuff);*/
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pgLO->res = PQexec(pgLO->conn, Qbuff);
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if (PQresultStatus(pgLO->res) != PGRES_COMMAND_OK)
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{
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fprintf(stderr, "%s: %s\n", progname, PQerrorMessage(pgLO->conn));
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PQclear(pgLO->res);
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PQexec(pgLO->conn, "ROLLBACK");
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fprintf(stderr, "\n%s: ROLLBACK\n", progname);
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exit(RE_ERROR);
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}
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PQclear(pgLO->res);
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}
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}
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