pgsql: Fix pg_recvlogical for pre-10 versions - Mailing list pgsql-committers

Fix pg_recvlogical for pre-10 versions

In e170b8c8, protection against modified search_path was added. However,
PostgreSQL versions prior to 10 does not accept SQL commands over a
replication connection, so the protection would generate a syntax error.

Since we cannot run SQL commands on it, we are also not vulnerable to
the issue that e170b8c8 fixes, so we can just skip this command for
older versions.

Author: Michael Paquier <michael@paquier.xyz>

Branch
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REL_10_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/e7d3a37d9936f725807b4d5cdf471123a4805ef1

Modified Files
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src/bin/pg_basebackup/streamutil.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)