From: Alvaro Herrera <alvherre@alvh.no-ip.org>
Date: Tue, 21 Jun 2022 19:55:12 +0200
Subject: [PATCH v7 2/6] Allow tracefile to be stdout

---
 src/test/modules/libpq_pipeline/libpq_pipeline.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/test/modules/libpq_pipeline/libpq_pipeline.c b/src/test/modules/libpq_pipeline/libpq_pipeline.c
index c27c4e0ada..8f6f2d4b4b 100644
--- a/src/test/modules/libpq_pipeline/libpq_pipeline.c
+++ b/src/test/modules/libpq_pipeline/libpq_pipeline.c
@@ -1630,7 +1630,10 @@ main(int argc, char **argv)
 	/* Set the trace file, if requested */
 	if (tracefile != NULL)
 	{
-		trace = fopen(tracefile, "w");
+		if (strcmp(tracefile, "-") == 0)
+			trace = stdout;
+		else
+			trace = fopen(tracefile, "w");
 		if (trace == NULL)
 			pg_fatal("could not open file \"%s\": %m", tracefile);
 
-- 
2.30.2


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