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pg_upgrade: have pg_upgrade fail for old 9.4 JSONB format

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Backpatch through 9.4
This commit is contained in:
Bruce Momjian 2014-09-29 20:19:59 -04:00
parent 445d262852
commit 35419aeb83
2 changed files with 99 additions and 0 deletions
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94
contrib/pg_upgrade/check.c
View File

@ -24,6 +24,7 @@ static void check_is_install_user(ClusterInfo *cluster);
static void check_for_prepared_transactions(ClusterInfo *cluster);
static void check_for_isn_and_int8_passing_mismatch(ClusterInfo *cluster);
static void check_for_reg_data_type_usage(ClusterInfo *cluster);
static void check_for_jsonb_9_4_usage(ClusterInfo *cluster);
static void get_bin_version(ClusterInfo *cluster);
static char *get_canonical_locale_name(int category, const char *locale);
@ -99,6 +100,9 @@ check_and_dump_old_cluster(bool live_check)
check_for_prepared_transactions(&old_cluster);
check_for_reg_data_type_usage(&old_cluster);
check_for_isn_and_int8_passing_mismatch(&old_cluster);
if (GET_MAJOR_VERSION(old_cluster.major_version) == 904 &&
old_cluster.controldata.cat_ver < JSONB_FORMAT_CHANGE_CAT_VER)
check_for_jsonb_9_4_usage(&old_cluster);
/* Pre-PG 9.4 had a different 'line' data type internal format */
if (GET_MAJOR_VERSION(old_cluster.major_version) <= 903)
@ -915,6 +919,96 @@ check_for_reg_data_type_usage(ClusterInfo *cluster)
}
/*
* check_for_jsonb_9_4_usage()
*
* JSONB changed its storage format during 9.4 beta, so check for it.
*/
static void
check_for_jsonb_9_4_usage(ClusterInfo *cluster)
{
int dbnum;
FILE *script = NULL;
bool found = false;
char output_path[MAXPGPATH];
prep_status("Checking for JSONB user data types");
snprintf(output_path, sizeof(output_path), "tables_using_jsonb.txt");
for (dbnum = 0; dbnum < cluster->dbarr.ndbs; dbnum++)
{
PGresult *res;
bool db_used = false;
int ntups;
int rowno;
int i_nspname,
i_relname,
i_attname;
DbInfo *active_db = &cluster->dbarr.dbs[dbnum];
PGconn *conn = connectToServer(cluster, active_db->db_name);
/*
* While several relkinds don't store any data, e.g. views, they can
* be used to define data types of other columns, so we check all
* relkinds.
*/
res = executeQueryOrDie(conn,
"SELECT n.nspname, c.relname, a.attname "
"FROM pg_catalog.pg_class c, "
" pg_catalog.pg_namespace n, "
" pg_catalog.pg_attribute a "
"WHERE c.oid = a.attrelid AND "
" NOT a.attisdropped AND "
" a.atttypid = 'pg_catalog.jsonb'::pg_catalog.regtype AND "
" c.relnamespace = n.oid AND "
/* exclude possible orphaned temp tables */
" n.nspname !~ '^pg_temp_' AND "
" n.nspname NOT IN ('pg_catalog', 'information_schema')");
ntups = PQntuples(res);
i_nspname = PQfnumber(res, "nspname");
i_relname = PQfnumber(res, "relname");
i_attname = PQfnumber(res, "attname");
for (rowno = 0; rowno < ntups; rowno++)
{
found = true;
if (script == NULL && (script = fopen_priv(output_path, "w")) == NULL)
pg_fatal("Could not open file \"%s\": %s\n",
output_path, getErrorText(errno));
if (!db_used)
{
fprintf(script, "Database: %s\n", active_db->db_name);
db_used = true;
}
fprintf(script, " %s.%s.%s\n",
PQgetvalue(res, rowno, i_nspname),
PQgetvalue(res, rowno, i_relname),
PQgetvalue(res, rowno, i_attname));
}
PQclear(res);
PQfinish(conn);
}
if (script)
fclose(script);
if (found)
{
pg_log(PG_REPORT, "fatal\n");
pg_fatal("Your installation contains one of the JSONB data types in user tables.\n"
"The internal format of JSONB changed during 9.4 beta so this cluster cannot currently\n"
"be upgraded. You can remove the problem tables and restart the upgrade. A list\n"
"of the problem columns is in the file:\n"
" %s\n\n", output_path);
}
else
check_ok();
}
static void
get_bin_version(ClusterInfo *cluster)
{

5
contrib/pg_upgrade/pg_upgrade.h
View File

@ -121,6 +121,11 @@ extern char *output_files[];
*/
#define LARGE_OBJECT_SIZE_PG_CONTROL_VER 942
/*
* change in JSONB format during 9.4 beta
*/
#define JSONB_FORMAT_CHANGE_CAT_VER 201409291
/*
* Each relation is represented by a relinfo structure.
*/