pg_dump: Miscellaneous tightening based on recent refactorings.
Use exit_horribly() and ExecuteSqlQueryForSingleRow() in various places where it's equivalent, or nearly equivalent, to the prior coding. Apart from being more compact, this also makes the error messages for the wrong-number-of-tuples case more consistent.
This commit is contained in:
Robert Haas
parent
689d0eb7db
commit
1cc1b91d1b
@ -532,16 +532,10 @@ main(int argc, char **argv)
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dump_inserts = 1;
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if (dataOnly && schemaOnly)
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{
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write_msg(NULL, "options -s/--schema-only and -a/--data-only cannot be used together\n");
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exit_nicely(1);
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}
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exit_horribly(NULL, "options -s/--schema-only and -a/--data-only cannot be used together\n");
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if ((dataOnly || schemaOnly) && dumpSections != DUMP_UNSECTIONED)
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{
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write_msg(NULL, "options -s/--schema-only and -a/--data-only cannot be used with --section\n");
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exit_nicely(1);
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}
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exit_horribly(NULL, "options -s/--schema-only and -a/--data-only cannot be used with --section\n");
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if (dataOnly)
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dumpSections = DUMP_DATA;
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@ -554,10 +548,7 @@ main(int argc, char **argv)
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}
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if (dataOnly && outputClean)
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{
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write_msg(NULL, "options -c/--clean and -a/--data-only cannot be used together\n");
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exit_nicely(1);
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}
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exit_horribly(NULL, "options -c/--clean and -a/--data-only cannot be used together\n");
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if (dump_inserts && oids)
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{
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@ -587,20 +578,14 @@ main(int argc, char **argv)
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on_exit_nicely(pgdump_cleanup_at_exit, fout);
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if (fout == NULL)
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{
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write_msg(NULL, "could not open output file \"%s\" for writing\n", filename);
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exit_nicely(1);
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}
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exit_horribly(NULL, "could not open output file \"%s\" for writing\n", filename);
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/* Let the archiver know how noisy to be */
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fout->verbose = g_verbose;
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my_version = parse_version(PG_VERSION);
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if (my_version < 0)
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{
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write_msg(NULL, "could not parse version string \"%s\"\n", PG_VERSION);
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exit_nicely(1);
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}
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exit_horribly(NULL, "could not parse version string \"%s\"\n", PG_VERSION);
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/*
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* We allow the server to be back to 7.0, and up to any minor release of
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@ -668,10 +653,7 @@ main(int argc, char **argv)
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expand_schema_name_patterns(fout, &schema_include_patterns,
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&schema_include_oids);
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if (schema_include_oids.head == NULL)
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{
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write_msg(NULL, "No matching schemas were found\n");
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exit_nicely(1);
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}
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exit_horribly(NULL, "No matching schemas were found\n");
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}
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expand_schema_name_patterns(fout, &schema_exclude_patterns,
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&schema_exclude_oids);
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@ -683,10 +665,7 @@ main(int argc, char **argv)
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expand_table_name_patterns(fout, &table_include_patterns,
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&table_include_oids);
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if (table_include_oids.head == NULL)
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{
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write_msg(NULL, "No matching tables were found\n");
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exit_nicely(1);
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}
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exit_horribly(NULL, "No matching tables were found\n");
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}
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expand_table_name_patterns(fout, &table_exclude_patterns,
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&table_exclude_oids);
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@ -875,11 +854,8 @@ setup_connection(Archive *AH, const char *dumpencoding, char *use_role)
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if (dumpencoding)
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{
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if (PQsetClientEncoding(conn, dumpencoding) < 0)
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{
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write_msg(NULL, "invalid client encoding \"%s\" specified\n",
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dumpencoding);
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exit_nicely(1);
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}
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exit_horribly(NULL, "invalid client encoding \"%s\" specified\n",
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dumpencoding);
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}
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/*
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@ -974,10 +950,7 @@ parseArchiveFormat(const char *format, ArchiveMode *mode)
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else if (pg_strcasecmp(format, "tar") == 0)
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archiveFormat = archTar;
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else
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{
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write_msg(NULL, "invalid output format \"%s\" specified\n", format);
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exit_nicely(1);
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}
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exit_horribly(NULL, "invalid output format \"%s\" specified\n", format);
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return archiveFormat;
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}
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@ -999,10 +972,7 @@ expand_schema_name_patterns(Archive *fout,
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return; /* nothing to do */
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if (fout->remoteVersion < 70300)
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{
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write_msg(NULL, "server version must be at least 7.3 to use schema selection switches\n");
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exit_nicely(1);
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}
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exit_horribly(NULL, "server version must be at least 7.3 to use schema selection switches\n");
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query = createPQExpBuffer();
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@ -1831,7 +1801,6 @@ dumpDatabase(Archive *fout)
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PQExpBuffer creaQry = createPQExpBuffer();
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PGconn *conn = GetConnection(fout);
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PGresult *res;
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int ntups;
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int i_tableoid,
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i_oid,
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i_dba,
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@ -1928,23 +1897,7 @@ dumpDatabase(Archive *fout)
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appendStringLiteralAH(dbQry, datname, fout);
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}
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res = ExecuteSqlQuery(fout, dbQry->data, PGRES_TUPLES_OK);
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ntups = PQntuples(res);
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if (ntups <= 0)
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{
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write_msg(NULL, "missing pg_database entry for database \"%s\"\n",
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datname);
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exit_nicely(1);
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}
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if (ntups != 1)
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{
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write_msg(NULL, "query returned more than one (%d) pg_database entry for database \"%s\"\n",
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ntups, datname);
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exit_nicely(1);
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}
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res = ExecuteSqlQueryForSingleRow(fout, dbQry->data);
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i_tableoid = PQfnumber(res, "tableoid");
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i_oid = PQfnumber(res, "oid");
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@ -2040,13 +1993,7 @@ dumpDatabase(Archive *fout)
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"WHERE oid = %u;\n",
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LargeObjectRelationId);
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lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK);
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if (PQntuples(lo_res) != 1)
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{
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write_msg(NULL, "dumpDatabase(): could not find pg_largeobject.relfrozenxid\n");
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exit_nicely(1);
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}
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lo_res = ExecuteSqlQueryForSingleRow(fout, loFrozenQry->data);
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i_relfrozenxid = PQfnumber(lo_res, "relfrozenxid");
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@ -2078,13 +2025,7 @@ dumpDatabase(Archive *fout)
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"WHERE oid = %u;\n",
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LargeObjectMetadataRelationId);
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lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK);
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if (PQntuples(lo_res) != 1)
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{
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write_msg(NULL, "dumpDatabase(): could not find pg_largeobject_metadata.relfrozenxid\n");
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exit_nicely(1);
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}
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lo_res = ExecuteSqlQueryForSingleRow(fout, loFrozenQry->data);
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i_relfrozenxid = PQfnumber(lo_res, "relfrozenxid");
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@ -2407,11 +2348,8 @@ dumpBlobs(Archive *fout, void *arg)
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/* Open the BLOB */
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loFd = lo_open(conn, blobOid, INV_READ);
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if (loFd == -1)
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{
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write_msg(NULL, "could not open large object %u: %s",
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blobOid, PQerrorMessage(conn));
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exit_nicely(1);
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}
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exit_horribly(NULL, "could not open large object %u: %s",
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blobOid, PQerrorMessage(conn));
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StartBlob(fout, blobOid);
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@ -2420,11 +2358,8 @@ dumpBlobs(Archive *fout, void *arg)
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{
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cnt = lo_read(conn, loFd, buf, LOBBUFSIZE);
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if (cnt < 0)
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{
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write_msg(NULL, "error reading large object %u: %s",
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blobOid, PQerrorMessage(conn));
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exit_nicely(1);
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}
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exit_horribly(NULL, "error reading large object %u: %s",
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blobOid, PQerrorMessage(conn));
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WriteData(fout, buf, cnt);
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} while (cnt > 0);
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@ -2618,10 +2553,7 @@ binary_upgrade_extension_member(PQExpBuffer upgrade_buffer,
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extobj = NULL;
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}
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if (extobj == NULL)
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{
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write_msg(NULL, "could not find parent extension for %s", objlabel);
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exit_nicely(1);
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}
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exit_horribly(NULL, "could not find parent extension for %s", objlabel);
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appendPQExpBuffer(upgrade_buffer,
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"\n-- For binary upgrade, handle extension membership the hard way\n");
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@ -2760,8 +2692,7 @@ findNamespace(Archive *fout, Oid nsoid, Oid objoid)
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if (nsoid == nsinfo->dobj.catId.oid)
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return nsinfo;
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}
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write_msg(NULL, "schema with OID %u does not exist\n", nsoid);
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exit_nicely(1);
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exit_horribly(NULL, "schema with OID %u does not exist\n", nsoid);
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}
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else
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{
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@ -5085,12 +5016,8 @@ getRules(Archive *fout, int *numRules)
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ruletableoid = atooid(PQgetvalue(res, i, i_ruletable));
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ruleinfo[i].ruletable = findTableByOid(ruletableoid);
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if (ruleinfo[i].ruletable == NULL)
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{
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write_msg(NULL, "failed sanity check, parent table OID %u of pg_rewrite entry OID %u not found\n",
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ruletableoid,
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ruleinfo[i].dobj.catId.oid);
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exit_nicely(1);
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}
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exit_horribly(NULL, "failed sanity check, parent table OID %u of pg_rewrite entry OID %u not found\n",
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ruletableoid, ruleinfo[i].dobj.catId.oid);
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ruleinfo[i].dobj.namespace = ruleinfo[i].ruletable->dobj.namespace;
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ruleinfo[i].dobj.dump = ruleinfo[i].ruletable->dobj.dump;
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ruleinfo[i].ev_type = *(PQgetvalue(res, i, i_ev_type));
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@ -5331,12 +5258,10 @@ getTriggers(Archive *fout, TableInfo tblinfo[], int numTables)
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if (OidIsValid(tginfo[j].tgconstrrelid))
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{
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if (PQgetisnull(res, j, i_tgconstrrelname))
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{
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write_msg(NULL, "query produced null referenced table name for foreign key trigger \"%s\" on table \"%s\" (OID of table: %u)\n",
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tginfo[j].dobj.name, tbinfo->dobj.name,
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tginfo[j].tgconstrrelid);
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exit_nicely(1);
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}
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exit_horribly(NULL, "query produced null referenced table name for foreign key trigger \"%s\" on table \"%s\" (OID of table: %u)\n",
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tginfo[j].dobj.name,
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tbinfo->dobj.name,
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tginfo[j].tgconstrrelid);
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tginfo[j].tgconstrrelname = pg_strdup(PQgetvalue(res, j, i_tgconstrrelname));
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}
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else
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@ -5879,11 +5804,9 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables)
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for (j = 0; j < ntups; j++)
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{
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if (j + 1 != atoi(PQgetvalue(res, j, i_attnum)))
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{
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write_msg(NULL, "invalid column numbering in table \"%s\"\n",
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tbinfo->dobj.name);
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exit_nicely(1);
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}
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exit_horribly(NULL,
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"invalid column numbering in table \"%s\"\n",
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tbinfo->dobj.name);
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tbinfo->attnames[j] = pg_strdup(PQgetvalue(res, j, i_attname));
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tbinfo->atttypnames[j] = pg_strdup(PQgetvalue(res, j, i_atttypname));
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tbinfo->atttypmod[j] = atoi(PQgetvalue(res, j, i_atttypmod));
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@ -5967,11 +5890,9 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables)
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adnum = atoi(PQgetvalue(res, j, 2));
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if (adnum <= 0 || adnum > ntups)
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{
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write_msg(NULL, "invalid adnum value %d for table \"%s\"\n",
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adnum, tbinfo->dobj.name);
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exit_nicely(1);
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}
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exit_horribly(NULL,
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"invalid adnum value %d for table \"%s\"\n",
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adnum, tbinfo->dobj.name);
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/*
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* dropped columns shouldn't have defaults, but just in case,
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@ -7666,13 +7587,7 @@ dumpRangeType(Archive *fout, TypeInfo *tyinfo)
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"rngtypid = '%u'",
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tyinfo->dobj.catId.oid);
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res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK);
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if (PQntuples(res) != 1)
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{
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write_msg(NULL, "query returned %d pg_range entries for range type \"%s\"\n",
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PQntuples(res), tyinfo->dobj.name);
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exit_nicely(1);
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}
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res = ExecuteSqlQueryForSingleRow(fout, query->data);
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/*
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* DROP must be fully qualified in case same name appears in pg_catalog.
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@ -9346,11 +9261,8 @@ dumpFunc(Archive *fout, FuncInfo *finfo)
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else if (provolatile[0] == PROVOLATILE_STABLE)
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appendPQExpBuffer(q, " STABLE");
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else if (provolatile[0] != PROVOLATILE_VOLATILE)
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{
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write_msg(NULL, "unrecognized provolatile value for function \"%s\"\n",
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finfo->dobj.name);
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exit_nicely(1);
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}
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exit_horribly(NULL, "unrecognized provolatile value for function \"%s\"\n",
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finfo->dobj.name);
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}
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if (proisstrict[0] == 't')
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@ -11769,9 +11681,9 @@ dumpDefaultACL(Archive *fout, DefaultACLInfo *daclinfo)
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break;
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default:
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/* shouldn't get here */
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write_msg(NULL, "unknown object type (%d) in default privileges\n",
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(int) daclinfo->defaclobjtype);
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exit_nicely(1);
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exit_horribly(NULL,
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"unknown object type (%d) in default privileges\n",
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(int) daclinfo->defaclobjtype);
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type = ""; /* keep compiler quiet */
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}
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@ -11785,11 +11697,8 @@ dumpDefaultACL(Archive *fout, DefaultACLInfo *daclinfo)
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daclinfo->defaclrole,
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fout->remoteVersion,
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q))
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{
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write_msg(NULL, "could not parse default ACL list (%s)\n",
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daclinfo->defaclacl);
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exit_nicely(1);
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}
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exit_horribly(NULL, "could not parse default ACL list (%s)\n",
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daclinfo->defaclacl);
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ArchiveEntry(fout, daclinfo->dobj.catId, daclinfo->dobj.dumpId,
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tag->data,
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@ -11842,11 +11751,9 @@ dumpACL(Archive *fout, CatalogId objCatId, DumpId objDumpId,
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if (!buildACLCommands(name, subname, type, acls, owner,
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"", fout->remoteVersion, sql))
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{
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write_msg(NULL, "could not parse ACL list (%s) for object \"%s\" (%s)\n",
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acls, name, type);
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exit_nicely(1);
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}
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exit_horribly(NULL,
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"could not parse ACL list (%s) for object \"%s\" (%s)\n",
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acls, name, type);
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if (sql->len > 0)
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ArchiveEntry(fout, nilCatalogId, createDumpId(),
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@ -12286,22 +12193,18 @@ dumpTableSchema(Archive *fout, TableInfo *tbinfo)
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if (PQntuples(res) != 1)
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{
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if (PQntuples(res) < 1)
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write_msg(NULL, "query to obtain definition of view \"%s\" returned no data\n",
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exit_horribly(NULL, "query to obtain definition of view \"%s\" returned no data\n",
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tbinfo->dobj.name);
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else
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write_msg(NULL, "query to obtain definition of view \"%s\" returned more than one definition\n",
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exit_horribly(NULL, "query to obtain definition of view \"%s\" returned more than one definition\n",
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tbinfo->dobj.name);
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exit_nicely(1);
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}
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viewdef = PQgetvalue(res, 0, 0);
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if (strlen(viewdef) == 0)
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{
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write_msg(NULL, "definition of view \"%s\" appears to be empty (length zero)\n",
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tbinfo->dobj.name);
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exit_nicely(1);
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}
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exit_horribly(NULL, "definition of view \"%s\" appears to be empty (length zero)\n",
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tbinfo->dobj.name);
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/*
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* DROP must be fully qualified in case same name appears in
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@ -12349,15 +12252,7 @@ dumpTableSchema(Archive *fout, TableInfo *tbinfo)
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"ON (fs.oid = ft.ftserver) "
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"WHERE ft.ftrelid = '%u'",
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tbinfo->dobj.catId.oid);
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res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK);
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if (PQntuples(res) != 1)
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{
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write_msg(NULL, ngettext("query returned %d foreign server entry for foreign table \"%s\"\n",
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"query returned %d foreign server entries for foreign table \"%s\"\n",
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PQntuples(res)),
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PQntuples(res), tbinfo->dobj.name);
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exit_nicely(1);
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}
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res = ExecuteSqlQueryForSingleRow(fout, query->data);
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i_srvname = PQfnumber(res, "srvname");
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i_ftoptions = PQfnumber(res, "ftoptions");
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srvname = pg_strdup(PQgetvalue(res, 0, i_srvname));
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@ -12919,9 +12814,8 @@ getAttrName(int attrnum, TableInfo *tblInfo)
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case TableOidAttributeNumber:
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return "tableoid";
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}
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write_msg(NULL, "invalid column number %d for table \"%s\"\n",
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attrnum, tblInfo->dobj.name);
|
||||
exit_nicely(1);
|
||||
exit_horribly(NULL, "invalid column number %d for table \"%s\"\n",
|
||||
attrnum, tblInfo->dobj.name);
|
||||
return NULL; /* keep compiler quiet */
|
||||
}
|
||||
|
||||
@ -13030,11 +12924,8 @@ dumpConstraint(Archive *fout, ConstraintInfo *coninfo)
|
||||
indxinfo = (IndxInfo *) findObjectByDumpId(coninfo->conindex);
|
||||
|
||||
if (indxinfo == NULL)
|
||||
{
|
||||
write_msg(NULL, "missing index for constraint \"%s\"\n",
|
||||
coninfo->dobj.name);
|
||||
exit_nicely(1);
|
||||
}
|
||||
exit_horribly(NULL, "missing index for constraint \"%s\"\n",
|
||||
coninfo->dobj.name);
|
||||
|
||||
if (binary_upgrade)
|
||||
binary_upgrade_set_pg_class_oids(fout, q,
|
||||
@ -13220,8 +13111,8 @@ dumpConstraint(Archive *fout, ConstraintInfo *coninfo)
|
||||
}
|
||||
else
|
||||
{
|
||||
write_msg(NULL, "unrecognized constraint type: %c\n", coninfo->contype);
|
||||
exit_nicely(1);
|
||||
exit_horribly(NULL, "unrecognized constraint type: %c\n",
|
||||
coninfo->contype);
|
||||
}
|
||||
|
||||
/* Dump Constraint Comments --- only works for table constraints */
|
||||
@ -13269,7 +13160,6 @@ static Oid
|
||||
findLastBuiltinOid_V71(Archive *fout, const char *dbname)
|
||||
{
|
||||
PGresult *res;
|
||||
int ntups;
|
||||
Oid last_oid;
|
||||
PQExpBuffer query = createPQExpBuffer();
|
||||
|
||||
@ -13277,19 +13167,7 @@ findLastBuiltinOid_V71(Archive *fout, const char *dbname)
|
||||
appendPQExpBuffer(query, "SELECT datlastsysoid from pg_database where datname = ");
|
||||
appendStringLiteralAH(query, dbname, fout);
|
||||
|
||||
res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK);
|
||||
|
||||
ntups = PQntuples(res);
|
||||
if (ntups < 1)
|
||||
{
|
||||
write_msg(NULL, "missing pg_database entry for this database\n");
|
||||
exit_nicely(1);
|
||||
}
|
||||
if (ntups > 1)
|
||||
{
|
||||
write_msg(NULL, "found more than one pg_database entry for this database\n");
|
||||
exit_nicely(1);
|
||||
}
|
||||
res = ExecuteSqlQueryForSingleRow(fout, query->data);
|
||||
last_oid = atooid(PQgetvalue(res, 0, PQfnumber(res, "datlastsysoid")));
|
||||
PQclear(res);
|
||||
destroyPQExpBuffer(query);
|
||||
@ -13308,23 +13186,10 @@ static Oid
|
||||
findLastBuiltinOid_V70(Archive *fout)
|
||||
{
|
||||
PGresult *res;
|
||||
int ntups;
|
||||
int last_oid;
|
||||
|
||||
res = ExecuteSqlQuery(fout,
|
||||
"SELECT oid FROM pg_class WHERE relname = 'pg_indexes'",
|
||||
PGRES_TUPLES_OK);
|
||||
ntups = PQntuples(res);
|
||||
if (ntups < 1)
|
||||
{
|
||||
write_msg(NULL, "could not find entry for pg_indexes in pg_class\n");
|
||||
exit_nicely(1);
|
||||
}
|
||||
if (ntups > 1)
|
||||
{
|
||||
write_msg(NULL, "found more than one entry for pg_indexes in pg_class\n");
|
||||
exit_nicely(1);
|
||||
}
|
||||
res = ExecuteSqlQueryForSingleRow(fout,
|
||||
"SELECT oid FROM pg_class WHERE relname = 'pg_indexes'");
|
||||
last_oid = atooid(PQgetvalue(res, 0, PQfnumber(res, "oid")));
|
||||
PQclear(res);
|
||||
return last_oid;
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user