/*
- * old_9_3_check_for_line_data_type_usage()
- * 9.3 -> 9.4
- * Fully implement the 'line' data type in 9.4, which previously returned
- * "not enabled" by default and was only functionally enabled with a
- * compile-time switch; 9.4 "line" has different binary and text
- * representation formats; checks tables and indexes.
+ * check_for_data_type_usage
+ * Detect whether there are any stored columns depending on the given type
+ *
+ * If so, write a report to the given file name, and return true.
+ *
+ * We check for the type in tables, matviews, and indexes, but not views;
+ * there's no storage involved in a view.
*/
-void
-old_9_3_check_for_line_data_type_usage(ClusterInfo *cluster)
+static bool
+check_for_data_type_usage(ClusterInfo *cluster, const char *typename,
+ char *output_path)
{
- int dbnum;
- FILE *script = NULL;
bool found = false;
- char output_path[MAXPGPATH];
-
- prep_status("Checking for invalid \"line\" user columns");
-
- snprintf(output_path, sizeof(output_path), "tables_using_line.txt");
+ FILE *script = NULL;
+ int dbnum;
for (dbnum = 0; dbnum < cluster->dbarr.ndbs; dbnum++)
{
+ DbInfo *active_db = &cluster->dbarr.dbs[dbnum];
+ PGconn *conn = connectToServer(cluster, active_db->db_name);
+ PQExpBufferData querybuf;
PGresult *res;
bool db_used = false;
int ntups;
int i_nspname,
i_relname,
i_attname;
- DbInfo *active_db = &cluster->dbarr.dbs[dbnum];
- PGconn *conn = connectToServer(cluster, active_db->db_name);
/*
- * The pg_catalog.line type may be wrapped in a domain or composite
- * type, or both (9.3 did not allow domains on composite types, but
- * there may be multi-level composite type). To detect these cases
- * we need a recursive CTE.
+ * The type of interest might be wrapped in a domain, array,
+ * composite, or range, and these container types can be nested (to
+ * varying extents depending on server version, but that's not of
+ * concern here). To handle all these cases we need a recursive CTE.
*/
- res = executeQueryOrDie(conn,
- "WITH RECURSIVE oids AS ( "
- /* the pg_catalog.line type itself */
- " SELECT 'pg_catalog.line'::pg_catalog.regtype AS oid "
- " UNION ALL "
- " SELECT * FROM ( "
- /* domains on the type */
- " WITH x AS (SELECT oid FROM oids) "
- " SELECT t.oid FROM pg_catalog.pg_type t, x WHERE typbasetype = x.oid AND typtype = 'd' "
- " UNION "
- /* composite types containing the type */
- " SELECT t.oid FROM pg_catalog.pg_type t, pg_catalog.pg_class c, pg_catalog.pg_attribute a, x "
- " WHERE t.typtype = 'c' AND "
- " t.oid = c.reltype AND "
- " c.oid = a.attrelid AND "
- " NOT a.attisdropped AND "
- " a.atttypid = x.oid "
- " ) foo "
- ") "
- "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 IN (SELECT oid FROM oids) AND "
- " c.relkind IN ("
- CppAsString2(RELKIND_RELATION) ", "
- CppAsString2(RELKIND_MATVIEW) ", "
- CppAsString2(RELKIND_INDEX) ") AND "
- " c.relnamespace = n.oid AND "
+ initPQExpBuffer(&querybuf);
+ appendPQExpBuffer(&querybuf,
+ "WITH RECURSIVE oids AS ( "
+ /* the target type itself */
+ " SELECT '%s'::pg_catalog.regtype AS oid "
+ " UNION ALL "
+ " SELECT * FROM ( "
+ /* inner WITH because we can only reference the CTE once */
+ " WITH x AS (SELECT oid FROM oids) "
+ /* domains on any type selected so far */
+ " SELECT t.oid FROM pg_catalog.pg_type t, x WHERE typbasetype = x.oid AND typtype = 'd' "
+ " UNION ALL "
+ /* arrays over any type selected so far */
+ " SELECT t.oid FROM pg_catalog.pg_type t, x WHERE typelem = x.oid AND typtype = 'b' "
+ " UNION ALL "
+ /* composite types containing any type selected so far */
+ " SELECT t.oid FROM pg_catalog.pg_type t, pg_catalog.pg_class c, pg_catalog.pg_attribute a, x "
+ " WHERE t.typtype = 'c' AND "
+ " t.oid = c.reltype AND "
+ " c.oid = a.attrelid AND "
+ " NOT a.attisdropped AND "
+ " a.atttypid = x.oid ",
+ typename);
+
+ /* Ranges came in in 9.2 */
+ if (GET_MAJOR_VERSION(cluster->major_version) >= 902)
+ appendPQExpBuffer(&querybuf,
+ " UNION ALL "
+ /* ranges containing any type selected so far */
+ " SELECT t.oid FROM pg_catalog.pg_type t, pg_catalog.pg_range r, x "
+ " WHERE t.typtype = 'r' AND r.rngtypid = t.oid AND r.rngsubtype = x.oid");
+
+ appendPQExpBuffer(&querybuf,
+ " ) foo "
+ ") "
+ /* now look for stored columns of any such type */
+ "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 IN (SELECT oid FROM oids) AND "
+ " c.relkind IN ("
+ CppAsString2(RELKIND_RELATION) ", "
+ CppAsString2(RELKIND_MATVIEW) ", "
+ CppAsString2(RELKIND_INDEX) ") AND "
+ " c.relnamespace = n.oid AND "
/* exclude possible orphaned temp tables */
- " n.nspname !~ '^pg_temp_' AND "
- " n.nspname !~ '^pg_toast_temp_' AND "
- " n.nspname NOT IN ('pg_catalog', 'information_schema')");
+ " n.nspname !~ '^pg_temp_' AND "
+ " n.nspname !~ '^pg_toast_temp_' AND "
+ /* exclude system catalogs, too */
+ " n.nspname NOT IN ('pg_catalog', 'information_schema')");
+
+ res = executeQueryOrDie(conn, "%s", querybuf.data);
ntups = PQntuples(res);
i_nspname = PQfnumber(res, "nspname");
pg_fatal("could not open file \"%s\": %s\n", output_path, getErrorText());
if (!db_used)
{
- fprintf(script, "Database: %s\n", active_db->db_name);
+ fprintf(script, "In database: %s\n", active_db->db_name);
db_used = true;
}
fprintf(script, " %s.%s.%s\n",
PQclear(res);
+ termPQExpBuffer(&querybuf);
+
PQfinish(conn);
}
if (script)
fclose(script);
- if (found)
+ return found;
+}
+
+
+/*
+ * old_9_3_check_for_line_data_type_usage()
+ * 9.3 -> 9.4
+ * Fully implement the 'line' data type in 9.4, which previously returned
+ * "not enabled" by default and was only functionally enabled with a
+ * compile-time switch; as of 9.4 "line" has a different on-disk
+ * representation format.
+ */
+void
+old_9_3_check_for_line_data_type_usage(ClusterInfo *cluster)
+{
+ char output_path[MAXPGPATH];
+
+ prep_status("Checking for invalid \"line\" user columns");
+
+ snprintf(output_path, sizeof(output_path), "tables_using_line.txt");
+
+ if (check_for_data_type_usage(cluster, "pg_catalog.line", output_path))
{
pg_log(PG_REPORT, "fatal\n");
pg_fatal("Your installation contains the \"line\" data type in user tables. This\n"
projects / postgresql.git / commitdiff