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Diffstat (limited to 'src/backend/utils/cache/relcache.c')
-rw-r--r--src/backend/utils/cache/relcache.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/backend/utils/cache/relcache.c b/src/backend/utils/cache/relcache.c
index fbd11883e17..3d05297b0d9 100644
--- a/src/backend/utils/cache/relcache.c
+++ b/src/backend/utils/cache/relcache.c
@@ -6528,7 +6528,7 @@ write_item(const void *data, Size len, FILE *fp)
{
if (fwrite(&len, 1, sizeof(len), fp) != sizeof(len))
elog(FATAL, "could not write init file");
- if (fwrite(data, 1, len, fp) != len)
+ if (len > 0 && fwrite(data, 1, len, fp) != len)
elog(FATAL, "could not write init file");
}