diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/utils/adt/datetime.c | 2 | ||||
| -rw-r--r-- | src/test/regress/expected/interval.out | 5 | ||||
| -rw-r--r-- | src/test/regress/sql/interval.sql | 3 |
3 files changed, 9 insertions, 1 deletions
diff --git a/src/backend/utils/adt/datetime.c b/src/backend/utils/adt/datetime.c index a3cfd54409b..cebc1172744 100644 --- a/src/backend/utils/adt/datetime.c +++ b/src/backend/utils/adt/datetime.c @@ -3365,7 +3365,7 @@ DecodeInterval(char **field, int *ftype, int nf, int range, * to dump in postgres style, not SQL style.) *---------- */ - if (IntervalStyle == INTSTYLE_SQL_STANDARD && *field[0] == '-') + if (IntervalStyle == INTSTYLE_SQL_STANDARD && nf > 0 && *field[0] == '-') { force_negative = true; /* Check for additional explicit signs */ diff --git a/src/test/regress/expected/interval.out b/src/test/regress/expected/interval.out index 00885acd1df..78c1fab2b63 100644 --- a/src/test/regress/expected/interval.out +++ b/src/test/regress/expected/interval.out @@ -857,6 +857,11 @@ SELECT interval '-23 hours 45 min 12.34 sec', -23:45:12.34 | -1 23:45:12.34 | -1-2 -1 -23:45:12.34 | -0-10 +1 +23:45:12.34 (1 row) +-- edge case for sign-matching rules +SELECT interval ''; -- error +ERROR: invalid input syntax for type interval: "" +LINE 1: SELECT interval ''; + ^ -- test outputting iso8601 intervals SET IntervalStyle to iso_8601; select interval '0' AS "zero", diff --git a/src/test/regress/sql/interval.sql b/src/test/regress/sql/interval.sql index 97d33a13236..55a449b6179 100644 --- a/src/test/regress/sql/interval.sql +++ b/src/test/regress/sql/interval.sql @@ -277,6 +277,9 @@ SELECT interval '-23 hours 45 min 12.34 sec', interval '-1 year 2 months 1 day 23 hours 45 min 12.34 sec', interval '-1 year 2 months 1 day 23 hours 45 min +12.34 sec'; +-- edge case for sign-matching rules +SELECT interval ''; -- error + -- test outputting iso8601 intervals SET IntervalStyle to iso_8601; select interval '0' AS "zero", |