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authorTom Lane <tgl@sss.pgh.pa.us>2016-10-19 18:11:49 -0400
committerTom Lane <tgl@sss.pgh.pa.us>2016-10-19 18:11:49 -0400
commita3215431ab7c667bf581728f10c80a36abbe1d5a (patch)
treeda41736cb7351c3b238527f79f274805120e56c2
parentecbac3e6e038e990f24a2e0eacdcd6738292105f (diff)
downloadpostgresql-a3215431ab7c667bf581728f10c80a36abbe1d5a.tar.gz
postgresql-a3215431ab7c667bf581728f10c80a36abbe1d5a.zip
Suppress "Factory" zone in pg_timezone_names view for tzdata >= 2016g.
IANA got rid of the really silly "abbreviation" and replaced it with one that's only moderately silly. But it's still pointless, so keep on not showing it.
-rw-r--r--src/backend/utils/adt/datetime.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/src/backend/utils/adt/datetime.c b/src/backend/utils/adt/datetime.c
index 45ba7cd9063..6d7fdc3c5e4 100644
--- a/src/backend/utils/adt/datetime.c
+++ b/src/backend/utils/adt/datetime.c
@@ -4957,8 +4957,17 @@ pg_timezone_names(PG_FUNCTION_ARGS)
&tzoff, &tm, &fsec, &tzn, tz) != 0)
continue; /* ignore if conversion fails */
- /* Ignore zic's rather silly "Factory" time zone */
- if (tzn && strcmp(tzn, "Local time zone must be set--see zic manual page") == 0)
+ /*
+ * Ignore zic's rather silly "Factory" time zone. The long string
+ * about "see zic manual page" is used in tzdata versions before
+ * 2016g; we can drop it someday when we're pretty sure no such data
+ * exists in the wild on platforms using --with-system-tzdata. In
+ * 2016g and later, the time zone abbreviation "-00" is used for
+ * "Factory" as well as some invalid cases, all of which we can
+ * reasonably omit from the pg_timezone_names view.
+ */
+ if (tzn && (strcmp(tzn, "-00") == 0 ||
+ strcmp(tzn, "Local time zone must be set--see zic manual page") == 0))
continue;
/* Found a displayable zone */