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-rw-r--r--src/include/nodes/relation.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/include/nodes/relation.h b/src/include/nodes/relation.h
index f6592697e44..0aec1637c93 100644
--- a/src/include/nodes/relation.h
+++ b/src/include/nodes/relation.h
@@ -491,6 +491,9 @@ typedef struct IndexOptInfo
bool amsearchnulls; /* can AM search for NULL/NOT NULL entries? */
bool amhasgettuple; /* does AM have amgettuple interface? */
bool amhasgetbitmap; /* does AM have amgetbitmap interface? */
+
+ /* Added at end of struct to avoid ABI breakage in released branches */
+ bool immediate; /* is uniqueness enforced immediately? */
} IndexOptInfo;