Thread: pgsql: Refactor one use of IDENTIFY_SYSTEM in WAL streaming code of pg_

Refactor one use of IDENTIFY_SYSTEM in WAL streaming code of pg_basebackup

0c013e0 has done a large refactoring to unify all the code paths using
replication commands, but forgot one code path doing WAL streaming that
checks the validity of a cluster connecting to with IDENTIFY_SYSTEM.
There is a generic routine able to handle that, so make use of it in
this code path.  This impacts pg_receivewal and pg_basebackup.

Author: Bharath Rupireddy
Discussion: https://postgr.es/m/CALj2ACVKKYUMC8GE72Y7BP9g1batrrq3sEwUh+1_i2krWZC_2Q@mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/99709c9b908eba99ecd787c4dc757f71edd98d87

Modified Files
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src/bin/pg_basebackup/receivelog.c | 32 ++++++++++++++------------------
1 file changed, 14 insertions(+), 18 deletions(-)