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Fix division by zero error in date_bin

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Bauyrzhan Sakhariyev, via Github

Backpatch to v14
This commit is contained in:
John Naylor 2021-07-22 17:34:19 -04:00
parent b1c1b7af57
commit 81322fc409
5 changed files with 22 additions and 0 deletions
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10
src/backend/utils/adt/timestamp.c
View File

@ -3843,6 +3843,11 @@ timestamp_bin(PG_FUNCTION_ARGS)
stride_usecs = stride->day * USECS_PER_DAY + stride->time; stride_usecs = stride->day * USECS_PER_DAY + stride->time;
if (stride_usecs == 0)
ereport(ERROR,
(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
errmsg("stride cannot equal zero")));
tm_diff = timestamp - origin; tm_diff = timestamp - origin;
tm_delta = tm_diff - tm_diff % stride_usecs; tm_delta = tm_diff - tm_diff % stride_usecs;
@ -4021,6 +4026,11 @@ timestamptz_bin(PG_FUNCTION_ARGS)
stride_usecs = stride->day * USECS_PER_DAY + stride->time; stride_usecs = stride->day * USECS_PER_DAY + stride->time;
if (stride_usecs == 0)
ereport(ERROR,
(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
errmsg("stride cannot equal zero")));
tm_diff = timestamp - origin; tm_diff = timestamp - origin;
tm_delta = tm_diff - tm_diff % stride_usecs; tm_delta = tm_diff - tm_diff % stride_usecs;

3
src/test/regress/expected/timestamp.out
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@ -704,6 +704,9 @@ SELECT date_bin('5 months'::interval, timestamp '2020-02-01 01:01:01', timestamp
ERROR: timestamps cannot be binned into intervals containing months or years ERROR: timestamps cannot be binned into intervals containing months or years
SELECT date_bin('5 years'::interval, timestamp '2020-02-01 01:01:01', timestamp '2001-01-01'); SELECT date_bin('5 years'::interval, timestamp '2020-02-01 01:01:01', timestamp '2001-01-01');
ERROR: timestamps cannot be binned into intervals containing months or years ERROR: timestamps cannot be binned into intervals containing months or years
-- disallow zero intervals
SELECT date_bin('0 days'::interval, timestamp '1970-01-01 01:00:00' , timestamp '1970-01-01 00:00:00');
ERROR: stride cannot equal zero
-- Test casting within a BETWEEN qualifier -- Test casting within a BETWEEN qualifier
SELECT d1 - timestamp without time zone '1997-01-02' AS diff SELECT d1 - timestamp without time zone '1997-01-02' AS diff
FROM TIMESTAMP_TBL FROM TIMESTAMP_TBL

3
src/test/regress/expected/timestamptz.out
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@ -748,6 +748,9 @@ SELECT date_bin('5 months'::interval, timestamp with time zone '2020-02-01 01:01
ERROR: timestamps cannot be binned into intervals containing months or years ERROR: timestamps cannot be binned into intervals containing months or years
SELECT date_bin('5 years'::interval, timestamp with time zone '2020-02-01 01:01:01+00', timestamp with time zone '2001-01-01+00'); SELECT date_bin('5 years'::interval, timestamp with time zone '2020-02-01 01:01:01+00', timestamp with time zone '2001-01-01+00');
ERROR: timestamps cannot be binned into intervals containing months or years ERROR: timestamps cannot be binned into intervals containing months or years
-- disallow zero intervals
SELECT date_bin('0 days'::interval, timestamp with time zone '1970-01-01 01:00:00+00' , timestamp with time zone '1970-01-01 00:00:00+00');
ERROR: stride cannot equal zero
-- Test casting within a BETWEEN qualifier -- Test casting within a BETWEEN qualifier
SELECT d1 - timestamp with time zone '1997-01-02' AS diff SELECT d1 - timestamp with time zone '1997-01-02' AS diff
FROM TIMESTAMPTZ_TBL FROM TIMESTAMPTZ_TBL

3
src/test/regress/sql/timestamp.sql
View File

@ -263,6 +263,9 @@ SELECT date_bin('5 min'::interval, timestamp '2020-02-01 01:01:01', timestamp '2
SELECT date_bin('5 months'::interval, timestamp '2020-02-01 01:01:01', timestamp '2001-01-01'); SELECT date_bin('5 months'::interval, timestamp '2020-02-01 01:01:01', timestamp '2001-01-01');
SELECT date_bin('5 years'::interval, timestamp '2020-02-01 01:01:01', timestamp '2001-01-01'); SELECT date_bin('5 years'::interval, timestamp '2020-02-01 01:01:01', timestamp '2001-01-01');
-- disallow zero intervals
SELECT date_bin('0 days'::interval, timestamp '1970-01-01 01:00:00' , timestamp '1970-01-01 00:00:00');
-- Test casting within a BETWEEN qualifier -- Test casting within a BETWEEN qualifier
SELECT d1 - timestamp without time zone '1997-01-02' AS diff SELECT d1 - timestamp without time zone '1997-01-02' AS diff
FROM TIMESTAMP_TBL FROM TIMESTAMP_TBL

3
src/test/regress/sql/timestamptz.sql
View File

@ -238,6 +238,9 @@ SELECT date_bin('5 min'::interval, timestamptz '2020-02-01 01:01:01+00', timesta
SELECT date_bin('5 months'::interval, timestamp with time zone '2020-02-01 01:01:01+00', timestamp with time zone '2001-01-01+00'); SELECT date_bin('5 months'::interval, timestamp with time zone '2020-02-01 01:01:01+00', timestamp with time zone '2001-01-01+00');
SELECT date_bin('5 years'::interval, timestamp with time zone '2020-02-01 01:01:01+00', timestamp with time zone '2001-01-01+00'); SELECT date_bin('5 years'::interval, timestamp with time zone '2020-02-01 01:01:01+00', timestamp with time zone '2001-01-01+00');
-- disallow zero intervals
SELECT date_bin('0 days'::interval, timestamp with time zone '1970-01-01 01:00:00+00' , timestamp with time zone '1970-01-01 00:00:00+00');
-- Test casting within a BETWEEN qualifier -- Test casting within a BETWEEN qualifier
SELECT d1 - timestamp with time zone '1997-01-02' AS diff SELECT d1 - timestamp with time zone '1997-01-02' AS diff
FROM TIMESTAMPTZ_TBL FROM TIMESTAMPTZ_TBL