Add transformed flag to nodes/*funcs.c for CREATE STATISTICS

Commit a4d75c86bf added a new flag, tracking if the statement was
processed by transformStatsStmt(), but failed to add this flag to
nodes/*funcs.c.

Catversion bump, due to adding a flag to copy/equal/out functions.

Reported-by: Noah Misch
Discussion: https://postgr.es/m/ad7891d2-e90c-b446-9fe2-7419143847d7%40enterprisedb.com

src/backend/nodes/copyfuncs.c

@@ -3678,6 +3678,7 @@ _copyCreateStatsStmt(const CreateStatsStmt *from)
 	COPY_NODE_FIELD(exprs);
 	COPY_NODE_FIELD(relations);
 	COPY_STRING_FIELD(stxcomment);
+	COPY_SCALAR_FIELD(transformed);
 	COPY_SCALAR_FIELD(if_not_exists);
 
 	return newnode;

src/backend/nodes/equalfuncs.c

@@ -1405,6 +1405,7 @@ _equalCreateStatsStmt(const CreateStatsStmt *a, const CreateStatsStmt *b)
 	COMPARE_NODE_FIELD(exprs);
 	COMPARE_NODE_FIELD(relations);
 	COMPARE_STRING_FIELD(stxcomment);
+	COMPARE_SCALAR_FIELD(transformed);
 	COMPARE_SCALAR_FIELD(if_not_exists);
 
 	return true;

src/backend/nodes/outfuncs.c

@@ -2778,6 +2778,7 @@ _outCreateStatsStmt(StringInfo str, const CreateStatsStmt *node)
 	WRITE_NODE_FIELD(exprs);
 	WRITE_NODE_FIELD(relations);
 	WRITE_STRING_FIELD(stxcomment);
+	WRITE_BOOL_FIELD(transformed);
 	WRITE_BOOL_FIELD(if_not_exists);
 }
 

src/include/catalog/catversion.h

@@ -53,6 +53,6 @@
  */
 
 /*							yyyymmddN */
-#define CATALOG_VERSION_NO	202106061
+#define CATALOG_VERSION_NO	202106062
 
 #endif