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Make to_timestamp and friends skip leading spaces before an integer field,
author Tom Lane <tgl@sss.pgh.pa.us>
2009年6月22日 17:54:30 +0000 (17:54 +0000)
committer Tom Lane <tgl@sss.pgh.pa.us>
2009年6月22日 17:54:30 +0000 (17:54 +0000)
even when not in FM mode. This improves compatibility with Oracle and with
our pre-8.4 behavior, as per bug #4862.

Brendan Jurd

Add a couple of regression test cases for this. In passing, get rid of the
labeling of the individual test cases; doesn't seem to be good for anything
except causing extra work when inserting a test...

Tom Lane

src/backend/utils/adt/formatting.c patch | blob | blame | history
src/test/regress/expected/horology.out patch | blob | blame | history
src/test/regress/sql/horology.sql patch | blob | blame | history

diff --git a/src/backend/utils/adt/formatting.c b/src/backend/utils/adt/formatting.c
index 064993bd87bdad8655702be9b7f2f0659368b273..66e75995fd0b7f0dbd49a663865a4871e2af4523 100644 (file)
--- a/src/backend/utils/adt/formatting.c
+++ b/src/backend/utils/adt/formatting.c
@@ -1,7 +1,7 @@
/* -----------------------------------------------------------------------
* formatting.c
*
- * $PostgreSQL: pgsql/src/backend/utils/adt/formatting.c,v 1.157 2009年06月11日 14:49:03 momjian Exp $
+ * $PostgreSQL: pgsql/src/backend/utils/adt/formatting.c,v 1.158 2009年06月22日 17:54:30 tgl Exp $
*
*
* Portions Copyright (c) 1999-2009, PostgreSQL Global Development Group
@@ -1817,7 +1817,7 @@ from_char_set_int(int *dest, const int value, const FormatNode *node)
* 'dest'. If 'dest' is NULL, the result is discarded.
*
* In fixed-width mode (the node does not have the FM suffix), consume at most
- * 'len' characters.
+ * 'len' characters. However, any leading whitespace isn't counted in 'len'.
*
* We use strtol() to recover the integer value from the source string, in
* accordance with the given FormatNode.
@@ -1840,6 +1840,11 @@ from_char_parse_int_len(int *dest, char **src, const int len, FormatNode *node)
char *init = *src;
int used;
+ /*
+ * Skip any whitespace before parsing the integer.
+ */
+ *src += strspace_len(*src);
+
Assert(len <= DCH_MAX_ITEM_SIZ);
used = (int) strlcpy(copy, *src, len + 1);
diff --git a/src/test/regress/expected/horology.out b/src/test/regress/expected/horology.out
index a32895c6e5f66a75c587934d731635fcdae1d307..26d7541b720117d609dc34f3aaacf6cf90754b92 100644 (file)
--- a/src/test/regress/expected/horology.out
+++ b/src/test/regress/expected/horology.out
@@ -2708,157 +2708,181 @@ RESET DateStyle;
--
-- to_timestamp()
--
-SELECT '' AS to_timestamp_1, to_timestamp('0097/Feb/16 --> 08:14:30', 'YYYY/Mon/DD --> HH:MI:SS');
- to_timestamp_1 | to_timestamp
-----------------+------------------------------
- | Sat Feb 16 08:14:30 0097 PST
+SELECT to_timestamp('0097/Feb/16 --> 08:14:30', 'YYYY/Mon/DD --> HH:MI:SS');
+ to_timestamp
+------------------------------
+ Sat Feb 16 08:14:30 0097 PST
(1 row)
-SELECT '' AS to_timestamp_2, to_timestamp('97/2/16 8:14:30', 'FMYYYY/FMMM/FMDD FMHH:FMMI:FMSS');
- to_timestamp_2 | to_timestamp
-----------------+------------------------------
- | Sat Feb 16 08:14:30 0097 PST
+SELECT to_timestamp('97/2/16 8:14:30', 'FMYYYY/FMMM/FMDD FMHH:FMMI:FMSS');
+ to_timestamp
+------------------------------
+ Sat Feb 16 08:14:30 0097 PST
(1 row)
-SELECT '' AS to_timestamp_3, to_timestamp('1985 January 12', 'YYYY FMMonth DD');
- to_timestamp_3 | to_timestamp
-----------------+------------------------------
- | Sat Jan 12 00:00:00 1985 PST
+SELECT to_timestamp('1985 January 12', 'YYYY FMMonth DD');
+ to_timestamp
+------------------------------
+ Sat Jan 12 00:00:00 1985 PST
(1 row)
-SELECT '' AS to_timestamp_4, to_timestamp('My birthday-> Year: 1976, Month: May, Day: 16',
- '"My birthday-> Year" YYYY, "Month:" FMMonth, "Day:" DD');
- to_timestamp_4 | to_timestamp
-----------------+------------------------------
- | Sun May 16 00:00:00 1976 PDT
+SELECT to_timestamp('My birthday-> Year: 1976, Month: May, Day: 16',
+ '"My birthday-> Year" YYYY, "Month:" FMMonth, "Day:" DD');
+ to_timestamp
+------------------------------
+ Sun May 16 00:00:00 1976 PDT
(1 row)
-SELECT '' AS to_timestamp_5, to_timestamp('1,582nd VIII 21', 'Y,YYYth FMRM DD');
- to_timestamp_5 | to_timestamp
-----------------+------------------------------
- | Sat Aug 21 00:00:00 1582 PST
+SELECT to_timestamp('1,582nd VIII 21', 'Y,YYYth FMRM DD');
+ to_timestamp
+------------------------------
+ Sat Aug 21 00:00:00 1582 PST
(1 row)
-SELECT '' AS to_timestamp_6, to_timestamp('15 "text between quote marks" 98 54 45',
- E'HH24 "\\text between quote marks\\"" YY MI SS');
- to_timestamp_6 | to_timestamp
-----------------+------------------------------
- | Thu Jan 01 15:54:45 1998 PST
+SELECT to_timestamp('15 "text between quote marks" 98 54 45',
+ E'HH24 "\\text between quote marks\\"" YY MI SS');
+ to_timestamp
+------------------------------
+ Thu Jan 01 15:54:45 1998 PST
(1 row)
-SELECT '' AS to_timestamp_7, to_timestamp('05121445482000', 'MMDDHH24MISSYYYY');
- to_timestamp_7 | to_timestamp
-----------------+------------------------------
- | Fri May 12 14:45:48 2000 PDT
+SELECT to_timestamp('05121445482000', 'MMDDHH24MISSYYYY');
+ to_timestamp
+------------------------------
+ Fri May 12 14:45:48 2000 PDT
(1 row)
-SELECT '' AS to_timestamp_8, to_timestamp('2000January09Sunday', 'YYYYFMMonthDDFMDay');
- to_timestamp_8 | to_timestamp
-----------------+------------------------------
- | Sun Jan 09 00:00:00 2000 PST
+SELECT to_timestamp('2000January09Sunday', 'YYYYFMMonthDDFMDay');
+ to_timestamp
+------------------------------
+ Sun Jan 09 00:00:00 2000 PST
(1 row)
-SELECT '' AS to_timestamp_9, to_timestamp('97/Feb/16', 'YYMonDD');
+SELECT to_timestamp('97/Feb/16', 'YYMonDD');
ERROR: invalid value "/Fe" for "Mon"
DETAIL: The given value did not match any of the allowed values for this field.
-SELECT '' AS to_timestamp_10, to_timestamp('19971116', 'YYYYMMDD');
- to_timestamp_10 | to_timestamp
------------------+------------------------------
- | Sun Nov 16 00:00:00 1997 PST
+SELECT to_timestamp('19971116', 'YYYYMMDD');
+ to_timestamp
+------------------------------
+ Sun Nov 16 00:00:00 1997 PST
(1 row)
-SELECT '' AS to_timestamp_11, to_timestamp('20000-1116', 'YYYY-MMDD');
- to_timestamp_11 | to_timestamp
------------------+-------------------------------
- | Thu Nov 16 00:00:00 20000 PST
+SELECT to_timestamp('20000-1116', 'YYYY-MMDD');
+ to_timestamp
+-------------------------------
+ Thu Nov 16 00:00:00 20000 PST
(1 row)
-SELECT '' AS to_timestamp_12, to_timestamp('9-1116', 'Y-MMDD');
- to_timestamp_12 | to_timestamp
------------------+------------------------------
- | Mon Nov 16 00:00:00 2009 PST
+SELECT to_timestamp('9-1116', 'Y-MMDD');
+ to_timestamp
+------------------------------
+ Mon Nov 16 00:00:00 2009 PST
(1 row)
-SELECT '' AS to_timestamp_13, to_timestamp('95-1116', 'YY-MMDD');
- to_timestamp_13 | to_timestamp
------------------+------------------------------
- | Thu Nov 16 00:00:00 1995 PST
+SELECT to_timestamp('95-1116', 'YY-MMDD');
+ to_timestamp
+------------------------------
+ Thu Nov 16 00:00:00 1995 PST
(1 row)
-SELECT '' AS to_timestamp_14, to_timestamp('995-1116', 'YYY-MMDD');
- to_timestamp_14 | to_timestamp
------------------+------------------------------
- | Thu Nov 16 00:00:00 1995 PST
+SELECT to_timestamp('995-1116', 'YYY-MMDD');
+ to_timestamp
+------------------------------
+ Thu Nov 16 00:00:00 1995 PST
(1 row)
-SELECT '' AS to_timestamp_15, to_timestamp('2005426', 'YYYYWWD');
- to_timestamp_15 | to_timestamp
------------------+------------------------------
- | Sat Oct 15 00:00:00 2005 PDT
+SELECT to_timestamp('2005426', 'YYYYWWD');
+ to_timestamp
+------------------------------
+ Sat Oct 15 00:00:00 2005 PDT
(1 row)
-SELECT '' AS to_timestamp_16, to_timestamp('2005300', 'YYYYDDD');
- to_timestamp_16 | to_timestamp
------------------+------------------------------
- | Thu Oct 27 00:00:00 2005 PDT
+SELECT to_timestamp('2005300', 'YYYYDDD');
+ to_timestamp
+------------------------------
+ Thu Oct 27 00:00:00 2005 PDT
(1 row)
-SELECT '' AS to_timestamp_17, to_timestamp('2005527', 'IYYYIWID');
- to_timestamp_17 | to_timestamp
------------------+------------------------------
- | Sun Jan 01 00:00:00 2006 PST
+SELECT to_timestamp('2005527', 'IYYYIWID');
+ to_timestamp
+------------------------------
+ Sun Jan 01 00:00:00 2006 PST
(1 row)
-SELECT '' AS to_timestamp_18, to_timestamp('005527', 'IYYIWID');
- to_timestamp_18 | to_timestamp
------------------+------------------------------
- | Sun Jan 01 00:00:00 2006 PST
+SELECT to_timestamp('005527', 'IYYIWID');
+ to_timestamp
+------------------------------
+ Sun Jan 01 00:00:00 2006 PST
(1 row)
-SELECT '' AS to_timestamp_19, to_timestamp('05527', 'IYIWID');
- to_timestamp_19 | to_timestamp
------------------+------------------------------
- | Sun Jan 01 00:00:00 2006 PST
+SELECT to_timestamp('05527', 'IYIWID');
+ to_timestamp
+------------------------------
+ Sun Jan 01 00:00:00 2006 PST
+(1 row)
+
+SELECT to_timestamp('5527', 'IIWID');
+ to_timestamp
+------------------------------
+ Sun Jan 01 00:00:00 2006 PST
(1 row)
-SELECT '' AS to_timestamp_20, to_timestamp('5527', 'IIWID');
- to_timestamp_20 | to_timestamp
------------------+------------------------------
- | Sun Jan 01 00:00:00 2006 PST
+SELECT to_timestamp('2005364', 'IYYYIDDD');
+ to_timestamp
+------------------------------
+ Sun Jan 01 00:00:00 2006 PST
+(1 row)
+
+SELECT to_timestamp('20050302', 'YYYYMMDD');
+ to_timestamp
+------------------------------
+ Wed Mar 02 00:00:00 2005 PST
(1 row)
-SELECT '' AS to_timestamp_21, to_timestamp('2005364', 'IYYYIDDD');
- to_timestamp_21 | to_timestamp
------------------+------------------------------
- | Sun Jan 01 00:00:00 2006 PST
+SELECT to_timestamp('2005 03 02', 'YYYYMMDD');
+ to_timestamp
+------------------------------
+ Wed Mar 02 00:00:00 2005 PST
+(1 row)
+
+SELECT to_timestamp(' 2005 03 02', 'YYYYMMDD');
+ to_timestamp
+------------------------------
+ Wed Mar 02 00:00:00 2005 PST
+(1 row)
+
+SELECT to_timestamp(' 20050302', 'YYYYMMDD');
+ to_timestamp
+------------------------------
+ Wed Mar 02 00:00:00 2005 PST
(1 row)
--
-- Check errors for some incorrect usages of to_timestamp()
--
-- Mixture of date conventions (ISO week and Gregorian):
-SELECT '' AS to_timestamp_22, to_timestamp('2005527', 'YYYYIWID');
+SELECT to_timestamp('2005527', 'YYYYIWID');
ERROR: invalid combination of date conventions
HINT: Do not mix Gregorian and ISO week date conventions in a formatting template.
-- Insufficient characters in the source string:
-SELECT '' AS to_timestamp_23, to_timestamp('19971', 'YYYYMMDD');
+SELECT to_timestamp('19971', 'YYYYMMDD');
ERROR: source string too short for "MM" formatting field
DETAIL: Field requires 2 characters, but only 1 remain.
HINT: If your source string is not fixed-width, try using the "FM" modifier.
-- Insufficient digit characters for a single node:
-SELECT '' AS to_timestamp_24, to_timestamp('19971)24', 'YYYYMMDD');
+SELECT to_timestamp('19971)24', 'YYYYMMDD');
ERROR: invalid value "1)" for "MM"
DETAIL: Field requires 2 characters, but only 1 could be parsed.
HINT: If your source string is not fixed-width, try using the "FM" modifier.
-- Value clobbering:
-SELECT '' AS to_timestamp_25, to_timestamp('1997-11-Jan-16', 'YYYY-MM-Mon-DD');
+SELECT to_timestamp('1997-11-Jan-16', 'YYYY-MM-Mon-DD');
ERROR: conflicting values for "Mon" field in formatting string
DETAIL: This value contradicts a previous setting for the same field type.
-- Non-numeric input:
-SELECT '' AS to_timestamp_26, to_timestamp('199711xy', 'YYYYMMDD');
+SELECT to_timestamp('199711xy', 'YYYYMMDD');
ERROR: invalid value "xy" for "DD"
DETAIL: Value must be an integer.
-- Input that doesn't fit in an int:
-SELECT '' AS to_timestamp_27, to_timestamp('10000000000', 'FMYYYY');
+SELECT to_timestamp('10000000000', 'FMYYYY');
ERROR: value for "YYYY" in source string is out of range
DETAIL: Value must be in the range -2147483648 to 2147483647.
diff --git a/src/test/regress/sql/horology.sql b/src/test/regress/sql/horology.sql
index ae412bfbc8ec65593b2f95e099fb05f066d4500e..615755e3de06d7e38c863aa7fbed89ed365e1cae 100644 (file)
--- a/src/test/regress/sql/horology.sql
+++ b/src/test/regress/sql/horology.sql
@@ -379,68 +379,76 @@ RESET DateStyle;
-- to_timestamp()
--
-SELECT '' AS to_timestamp_1, to_timestamp('0097/Feb/16 --> 08:14:30', 'YYYY/Mon/DD --> HH:MI:SS');
+SELECT to_timestamp('0097/Feb/16 --> 08:14:30', 'YYYY/Mon/DD --> HH:MI:SS');
-SELECT '' AS to_timestamp_2, to_timestamp('97/2/16 8:14:30', 'FMYYYY/FMMM/FMDD FMHH:FMMI:FMSS');
+SELECT to_timestamp('97/2/16 8:14:30', 'FMYYYY/FMMM/FMDD FMHH:FMMI:FMSS');
-SELECT '' AS to_timestamp_3, to_timestamp('1985 January 12', 'YYYY FMMonth DD');
+SELECT to_timestamp('1985 January 12', 'YYYY FMMonth DD');
-SELECT '' AS to_timestamp_4, to_timestamp('My birthday-> Year: 1976, Month: May, Day: 16',
- '"My birthday-> Year" YYYY, "Month:" FMMonth, "Day:" DD');
+SELECT to_timestamp('My birthday-> Year: 1976, Month: May, Day: 16',
+ '"My birthday-> Year" YYYY, "Month:" FMMonth, "Day:" DD');
-SELECT '' AS to_timestamp_5, to_timestamp('1,582nd VIII 21', 'Y,YYYth FMRM DD');
+SELECT to_timestamp('1,582nd VIII 21', 'Y,YYYth FMRM DD');
-SELECT '' AS to_timestamp_6, to_timestamp('15 "text between quote marks" 98 54 45',
- E'HH24 "\\text between quote marks\\"" YY MI SS');
+SELECT to_timestamp('15 "text between quote marks" 98 54 45',
+ E'HH24 "\\text between quote marks\\"" YY MI SS');
-SELECT '' AS to_timestamp_7, to_timestamp('05121445482000', 'MMDDHH24MISSYYYY');
+SELECT to_timestamp('05121445482000', 'MMDDHH24MISSYYYY');
-SELECT '' AS to_timestamp_8, to_timestamp('2000January09Sunday', 'YYYYFMMonthDDFMDay');
+SELECT to_timestamp('2000January09Sunday', 'YYYYFMMonthDDFMDay');
-SELECT '' AS to_timestamp_9, to_timestamp('97/Feb/16', 'YYMonDD');
+SELECT to_timestamp('97/Feb/16', 'YYMonDD');
-SELECT '' AS to_timestamp_10, to_timestamp('19971116', 'YYYYMMDD');
+SELECT to_timestamp('19971116', 'YYYYMMDD');
-SELECT '' AS to_timestamp_11, to_timestamp('20000-1116', 'YYYY-MMDD');
+SELECT to_timestamp('20000-1116', 'YYYY-MMDD');
-SELECT '' AS to_timestamp_12, to_timestamp('9-1116', 'Y-MMDD');
+SELECT to_timestamp('9-1116', 'Y-MMDD');
-SELECT '' AS to_timestamp_13, to_timestamp('95-1116', 'YY-MMDD');
+SELECT to_timestamp('95-1116', 'YY-MMDD');
-SELECT '' AS to_timestamp_14, to_timestamp('995-1116', 'YYY-MMDD');
+SELECT to_timestamp('995-1116', 'YYY-MMDD');
-SELECT '' AS to_timestamp_15, to_timestamp('2005426', 'YYYYWWD');
+SELECT to_timestamp('2005426', 'YYYYWWD');
-SELECT '' AS to_timestamp_16, to_timestamp('2005300', 'YYYYDDD');
+SELECT to_timestamp('2005300', 'YYYYDDD');
-SELECT '' AS to_timestamp_17, to_timestamp('2005527', 'IYYYIWID');
+SELECT to_timestamp('2005527', 'IYYYIWID');
-SELECT '' AS to_timestamp_18, to_timestamp('005527', 'IYYIWID');
+SELECT to_timestamp('005527', 'IYYIWID');
-SELECT '' AS to_timestamp_19, to_timestamp('05527', 'IYIWID');
+SELECT to_timestamp('05527', 'IYIWID');
-SELECT '' AS to_timestamp_20, to_timestamp('5527', 'IIWID');
+SELECT to_timestamp('5527', 'IIWID');
-SELECT '' AS to_timestamp_21, to_timestamp('2005364', 'IYYYIDDD');
+SELECT to_timestamp('2005364', 'IYYYIDDD');
+
+SELECT to_timestamp('20050302', 'YYYYMMDD');
+
+SELECT to_timestamp('2005 03 02', 'YYYYMMDD');
+
+SELECT to_timestamp(' 2005 03 02', 'YYYYMMDD');
+
+SELECT to_timestamp(' 20050302', 'YYYYMMDD');
--
-- Check errors for some incorrect usages of to_timestamp()
--
-- Mixture of date conventions (ISO week and Gregorian):
-SELECT '' AS to_timestamp_22, to_timestamp('2005527', 'YYYYIWID');
+SELECT to_timestamp('2005527', 'YYYYIWID');
-- Insufficient characters in the source string:
-SELECT '' AS to_timestamp_23, to_timestamp('19971', 'YYYYMMDD');
+SELECT to_timestamp('19971', 'YYYYMMDD');
-- Insufficient digit characters for a single node:
-SELECT '' AS to_timestamp_24, to_timestamp('19971)24', 'YYYYMMDD');
+SELECT to_timestamp('19971)24', 'YYYYMMDD');
-- Value clobbering:
-SELECT '' AS to_timestamp_25, to_timestamp('1997-11-Jan-16', 'YYYY-MM-Mon-DD');
+SELECT to_timestamp('1997-11-Jan-16', 'YYYY-MM-Mon-DD');
-- Non-numeric input:
-SELECT '' AS to_timestamp_26, to_timestamp('199711xy', 'YYYYMMDD');
+SELECT to_timestamp('199711xy', 'YYYYMMDD');
-- Input that doesn't fit in an int:
-SELECT '' AS to_timestamp_27, to_timestamp('10000000000', 'FMYYYY');
+SELECT to_timestamp('10000000000', 'FMYYYY');
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