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-rw-r--r--src/include/nodes/bitmapset.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/include/nodes/bitmapset.h b/src/include/nodes/bitmapset.h
index a78ff4886d..a314192b71 100644
--- a/src/include/nodes/bitmapset.h
+++ b/src/include/nodes/bitmapset.h
@@ -72,6 +72,7 @@ extern bool bms_is_member(int x, const Bitmapset *a);
extern bool bms_overlap(const Bitmapset *a, const Bitmapset *b);
extern bool bms_nonempty_difference(const Bitmapset *a, const Bitmapset *b);
extern int bms_singleton_member(const Bitmapset *a);
+extern bool bms_get_singleton_member(const Bitmapset *a, int *member);
extern int bms_num_members(const Bitmapset *a);
/* optimized tests when we don't need to know exact membership count: */