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-rw-r--r--src/test/regress/pg_regress.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/test/regress/pg_regress.c b/src/test/regress/pg_regress.c
index 06674141a31..ec67588cf58 100644
--- a/src/test/regress/pg_regress.c
+++ b/src/test/regress/pg_regress.c
@@ -2355,7 +2355,7 @@ regression_main(int argc, char *argv[],
else
{
#ifndef WIN32
- const char *copycmd = "cp -a \"%s\" \"%s/data\"";
+ const char *copycmd = "cp -RPp \"%s\" \"%s/data\"";
int expected_exitcode = 0;
#else
const char *copycmd = "robocopy /E /NJS /NJH /NFL /NDL /NP \"%s\" \"%s/data\"";