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Fix archive_catalog problem exposed by b1975e3ba.

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Now it's legal  to find in archive two files with equal segno. This can happen if both compressed and non-compessed versions are present.
This commit is contained in:
Anastasia 2019-09-20 16:07:51 +03:00
parent 6b8ab83548
commit c9d3c5845a
1 changed files with 9 additions and 2 deletions
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11
src/catalog.c
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@ -791,8 +791,15 @@ catalog_get_timelines(InstanceConfig *instance)
/* check, if segments are consequent */
XLogSegNo expected_segno = tlinfo->end_segno + 1;
/* some segments are missing. remember them in lost_segments to report */
if (segno != expected_segno)
/*
* Some segments are missing. remember them in lost_segments to report.
* Normally we expect that segment numbers form an increasing sequence,
* though it's legal to find two files with equal segno in case there
* are both compressed and non-compessed versions. For example
* 000000010000000000000002 and 000000010000000000000002.gz
*
*/
if (segno != expected_segno && segno != tlinfo->end_segno)
{
xlogInterval *interval = palloc(sizeof(xlogInterval));;
interval->begin_segno = expected_segno;