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-rw-r--r--src/include/access/gist.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/include/access/gist.h b/src/include/access/gist.h
index 00c6b4f2bb9..aa5f1763dd0 100644
--- a/src/include/access/gist.h
+++ b/src/include/access/gist.h
@@ -51,6 +51,7 @@
#define F_HAS_GARBAGE (1 << 4) /* some tuples on the page are dead,
* but not deleted yet */
+/* NSN - node sequence number, a special-purpose LSN */
typedef XLogRecPtr GistNSN;
/*