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Diffstat (limited to 'src/backend/access/gist/gistbuild.c')
-rw-r--r--src/backend/access/gist/gistbuild.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/backend/access/gist/gistbuild.c b/src/backend/access/gist/gistbuild.c
index 021a8dcf44b..3dc3e96df4d 100644
--- a/src/backend/access/gist/gistbuild.c
+++ b/src/backend/access/gist/gistbuild.c
@@ -144,6 +144,16 @@ gistbuild(PG_FUNCTION_ARGS)
elog(ERROR, "index \"%s\" already contains data",
RelationGetRelationName(index));
+ /*
+ * We can't yet handle unlogged GiST indexes, because we depend on LSNs.
+ * This is duplicative of an error in gistbuildempty, but we want to check
+ * here so as to throw error before doing all the index-build work.
+ */
+ if (heap->rd_rel->relpersistence == RELPERSISTENCE_UNLOGGED)
+ ereport(ERROR,
+ (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+ errmsg("unlogged GiST indexes are not supported")));
+
/* no locking is needed */
buildstate.giststate = initGISTstate(index);