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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2022-05-09 11:02:37 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2022-05-09 11:40:42 -0400 |
| commit | c0406fa768edd6b9e4bb543b04c871cd80f03934 (patch) | |
| tree | bd8c5a0f62912c06f86a87e39f4c79c9fae88489 /src/backend/utils/adt/timestamp.c | |
| parent | 34ff15660b4f752e3941d661c3896fd96b1571f9 (diff) | |
| download | postgresql-c0406fa768edd6b9e4bb543b04c871cd80f03934.tar.gz postgresql-c0406fa768edd6b9e4bb543b04c871cd80f03934.zip | |
Revert "Disallow infinite endpoints in generate_series() for timestamps."
This reverts commit eafdf9de06e9b60168f5e47cedcfceecdc6d4b5f
and its back-branch counterparts. Corey Huinker pointed out that
we'd discussed this exact change back in 2016 and rejected it,
on the grounds that there's at least one usage pattern with LIMIT
where an infinite endpoint can usefully be used. Perhaps that
argument needs to be re-litigated, but there's no time left before
our back-branch releases. To keep our options open, restore the
status quo ante; if we do end up deciding to change things, waiting
one more quarter won't hurt anything.
Rather than just doing a straight revert, I added a new test case
demonstrating the usage with LIMIT. That'll at least remind us of
the issue if we forget again.
Discussion: https://postgr.es/m/3603504.1652068977@sss.pgh.pa.us
Discussion: https://postgr.es/m/CADkLM=dzw0Pvdqp5yWKxMd+VmNkAMhG=4ku7GnCZxebWnzmz3Q@mail.gmail.com
Diffstat (limited to 'src/backend/utils/adt/timestamp.c')
| -rw-r--r-- | src/backend/utils/adt/timestamp.c | 28 |
1 files changed, 0 insertions, 28 deletions
diff --git a/src/backend/utils/adt/timestamp.c b/src/backend/utils/adt/timestamp.c index 9834989f598..cc24bcde71a 100644 --- a/src/backend/utils/adt/timestamp.c +++ b/src/backend/utils/adt/timestamp.c @@ -5305,20 +5305,6 @@ generate_series_timestamp(PG_FUNCTION_ARGS) MemoryContext oldcontext; Interval interval_zero; - /* Reject infinities in start and stop values */ - if (TIMESTAMP_IS_NOBEGIN(start) || - TIMESTAMP_IS_NOEND(start)) - ereport(ERROR, - (errcode(ERRCODE_INVALID_PARAMETER_VALUE), - errmsg("start value cannot be infinity"))); - if (TIMESTAMP_IS_NOBEGIN(finish) || - TIMESTAMP_IS_NOEND(finish)) - ereport(ERROR, - (errcode(ERRCODE_INVALID_PARAMETER_VALUE), - errmsg("stop value cannot be infinity"))); - - /* Interval doesn't (currently) have infinity, so nothing to check */ - /* create a function context for cross-call persistence */ funcctx = SRF_FIRSTCALL_INIT(); @@ -5400,20 +5386,6 @@ generate_series_timestamptz(PG_FUNCTION_ARGS) MemoryContext oldcontext; Interval interval_zero; - /* Reject infinities in start and stop values */ - if (TIMESTAMP_IS_NOBEGIN(start) || - TIMESTAMP_IS_NOEND(start)) - ereport(ERROR, - (errcode(ERRCODE_INVALID_PARAMETER_VALUE), - errmsg("start value cannot be infinity"))); - if (TIMESTAMP_IS_NOBEGIN(finish) || - TIMESTAMP_IS_NOEND(finish)) - ereport(ERROR, - (errcode(ERRCODE_INVALID_PARAMETER_VALUE), - errmsg("stop value cannot be infinity"))); - - /* Interval doesn't (currently) have infinity, so nothing to check */ - /* create a function context for cross-call persistence */ funcctx = SRF_FIRSTCALL_INIT(); |