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commit    67ffe1987d0acab35c2efaa8ffcbe092db333113
Author:   Michael Paquier <michael@paquier.xyz>
Date:     Thu Aug 07 02:49:29 2025 +0000
First released in: 18.0

    Improve tests of date_trunc() with infinity and unsupported units
    
    Commit d85ce012f99f has added some new error handling code to
    date_trunc() of timestamp, timestamptz, and interval with infinite
    values.
    
    However, the new test cases added by that commit did not actually test
    all of the new code, missing coverage for the following cases:
    1) For timestamp without time zone:
    1-1) infinite value with valid unit
    1-2) infinite value with unsupported unit
    1-3) finite value with unsupported unit, for a code path older than
    d85ce012f99f.
    2) For timestamp with time zone, without a time zone specified for the
    truncation:
    2-1) infinite value with valid unit
    2-2) infinite value with unsupported unit
    2-3) finite value with unsupported unit, for a code path older than
    d85ce012f99f.
    3) For timestamp with time zone, with a time zone specified for the
    truncation:
    3-1) infinite value with valid unit.
    3-2) infinite value with unsupported unit.
    
    This commit also provides coverage for the bug fixed in 2242b26ce472,
    through cases 2-1) and 3-1), when using an infinite value with a valid
    unit, with[out] the optional time zone parameter used for the
    truncation.
    
    Author: Peter Eisentraut <peter@eisentraut.org>
    Discussion: https://postgr.es/m/2d320b6f-b4af-4fbc-9eec-5d0fa15d187b@eisentraut.org
    Discussion: https://postgr.es/m/4bf60a84-2862-4a53-acd5-8eddf134a60e@eisentraut.org
    Backpatch-through: 18


src/test/regress/expected/timestamp.out | 10 ++++++++++ src/test/regress/expected/timestamptz.out | 18 ++++++++++++++++++ src/test/regress/sql/timestamp.sql | 4 +++- src/test/regress/sql/timestamptz.sql | 7 +++++-- 4 files changed, 36 insertions(+), 3 deletions(-) diff --git a/src/test/regress/expected/timestamp.out b/src/test/regress/expected/timestamp.out index 6aaa19c8f4e..14a9f5b56a6 100644 --- a/src/test/regress/expected/timestamp.out +++ b/src/test/regress/expected/timestamp.out @@ -591,6 +591,16 @@ SELECT date_trunc( 'week', timestamp '2004-02-29 15:44:17.71393' ) AS week_trunc Mon Feb 23 00:00:00 2004 (1 row) +SELECT date_trunc( 'week', timestamp 'infinity' ) AS inf_trunc; + inf_trunc +----------- + infinity +(1 row) + +SELECT date_trunc( 'timezone', timestamp '2004-02-29 15:44:17.71393' ) AS notsupp_trunc; +ERROR: unit "timezone" not supported for type timestamp without time zone +SELECT date_trunc( 'timezone', timestamp 'infinity' ) AS notsupp_inf_trunc; +ERROR: unit "timezone" not supported for type timestamp without time zone SELECT date_trunc( 'ago', timestamp 'infinity' ) AS invalid_trunc; ERROR: unit "ago" not recognized for type timestamp without time zone -- verify date_bin behaves the same as date_trunc for relevant intervals diff --git a/src/test/regress/expected/timestamptz.out b/src/test/regress/expected/timestamptz.out index 2a69953ff25..5dc8a621f6c 100644 --- a/src/test/regress/expected/timestamptz.out +++ b/src/test/regress/expected/timestamptz.out @@ -760,6 +760,16 @@ SELECT date_trunc( 'week', timestamp with time zone '2004-02-29 15:44:17.71393' Mon Feb 23 00:00:00 2004 PST (1 row) +SELECT date_trunc( 'week', timestamp with time zone 'infinity' ) AS inf_trunc; + inf_trunc +----------- + infinity +(1 row) + +SELECT date_trunc( 'timezone', timestamp with time zone '2004-02-29 15:44:17.71393' ) AS notsupp_trunc; +ERROR: unit "timezone" not supported for type timestamp with time zone +SELECT date_trunc( 'timezone', timestamp with time zone 'infinity' ) AS notsupp_inf_trunc; +ERROR: unit "timezone" not supported for type timestamp with time zone SELECT date_trunc( 'ago', timestamp with time zone 'infinity' ) AS invalid_trunc; ERROR: unit "ago" not recognized for type timestamp with time zone SELECT date_trunc('day', timestamp with time zone '2001-02-16 20:38:40+00', 'Australia/Sydney') as sydney_trunc; -- zone name @@ -780,6 +790,14 @@ SELECT date_trunc('day', timestamp with time zone '2001-02-16 20:38:40+00', 'VET Thu Feb 15 20:00:00 2001 PST (1 row) +SELECT date_trunc('timezone', timestamp with time zone 'infinity', 'GMT') AS notsupp_zone_trunc; +ERROR: unit "timezone" not supported for type timestamp with time zone +SELECT date_trunc( 'week', timestamp with time zone 'infinity', 'GMT') AS inf_zone_trunc; + inf_zone_trunc +---------------- + infinity +(1 row) + SELECT date_trunc('ago', timestamp with time zone 'infinity', 'GMT') AS invalid_zone_trunc; ERROR: unit "ago" not recognized for type timestamp with time zone -- verify date_bin behaves the same as date_trunc for relevant intervals diff --git a/src/test/regress/sql/timestamp.sql b/src/test/regress/sql/timestamp.sql index 55f80530ea0..313757ed041 100644 --- a/src/test/regress/sql/timestamp.sql +++ b/src/test/regress/sql/timestamp.sql @@ -175,7 +175,9 @@ SELECT d1 - timestamp without time zone '1997-01-02' AS diff FROM TIMESTAMP_TBL WHERE d1 BETWEEN '1902-01-01' AND '2038-01-01'; SELECT date_trunc( 'week', timestamp '2004-02-29 15:44:17.71393' ) AS week_trunc; - +SELECT date_trunc( 'week', timestamp 'infinity' ) AS inf_trunc; +SELECT date_trunc( 'timezone', timestamp '2004-02-29 15:44:17.71393' ) AS notsupp_trunc; +SELECT date_trunc( 'timezone', timestamp 'infinity' ) AS notsupp_inf_trunc; SELECT date_trunc( 'ago', timestamp 'infinity' ) AS invalid_trunc; -- verify date_bin behaves the same as date_trunc for relevant intervals diff --git a/src/test/regress/sql/timestamptz.sql b/src/test/regress/sql/timestamptz.sql index caca3123f13..6ace851d169 100644 --- a/src/test/regress/sql/timestamptz.sql +++ b/src/test/regress/sql/timestamptz.sql @@ -217,15 +217,18 @@ SELECT d1 - timestamp with time zone '1997-01-02' AS diff FROM TIMESTAMPTZ_TBL WHERE d1 BETWEEN '1902-01-01' AND '2038-01-01'; SELECT date_trunc( 'week', timestamp with time zone '2004-02-29 15:44:17.71393' ) AS week_trunc; +SELECT date_trunc( 'week', timestamp with time zone 'infinity' ) AS inf_trunc; +SELECT date_trunc( 'timezone', timestamp with time zone '2004-02-29 15:44:17.71393' ) AS notsupp_trunc; +SELECT date_trunc( 'timezone', timestamp with time zone 'infinity' ) AS notsupp_inf_trunc; SELECT date_trunc( 'ago', timestamp with time zone 'infinity' ) AS invalid_trunc; SELECT date_trunc('day', timestamp with time zone '2001-02-16 20:38:40+00', 'Australia/Sydney') as sydney_trunc; -- zone name SELECT date_trunc('day', timestamp with time zone '2001-02-16 20:38:40+00', 'GMT') as gmt_trunc; -- fixed-offset abbreviation SELECT date_trunc('day', timestamp with time zone '2001-02-16 20:38:40+00', 'VET') as vet_trunc; -- variable-offset abbreviation +SELECT date_trunc('timezone', timestamp with time zone 'infinity', 'GMT') AS notsupp_zone_trunc; +SELECT date_trunc( 'week', timestamp with time zone 'infinity', 'GMT') AS inf_zone_trunc; SELECT date_trunc('ago', timestamp with time zone 'infinity', 'GMT') AS invalid_zone_trunc; - - -- verify date_bin behaves the same as date_trunc for relevant intervals SELECT str, [parent: 074db8604ad1]