Обсуждение: pgsql: Avoid dangling-pointer usage in pg_basebackup progress reports.

Avoid dangling-pointer usage in pg_basebackup progress reports.

Ill-considered refactoring in 23a1c6578 led to progress_filename
sometimes pointing to data that had gone out of scope.  The most
bulletproof fix is to hang onto a copy of whatever's passed in.
Compared to the work spent elsewhere per file, that's not very
expensive, plus we can skip it except in verbose logging mode.

Per buildfarm.

Discussion: https://postgr.es/m/20220212211316.GK31460@telsasoft.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/62cb7427d1e491faf8612a82c2e3711a8cd65422

Modified Files
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src/bin/pg_basebackup/pg_basebackup.c | 21 ++++++++++++++++-----
1 file changed, 16 insertions(+), 5 deletions(-)