+/*
+ * _copyCaseTestExpr
+ */
+static CaseTestExpr *
+_copyCaseTestExpr(CaseTestExpr *from)
+{
+ CaseTestExpr *newnode = makeNode(CaseTestExpr);
+
+ COPY_SCALAR_FIELD(typeId);
+ COPY_SCALAR_FIELD(typeMod);
+
+ return newnode;
+}
+
+/*
+ * _copyArrayExpr
+ */
+static ArrayExpr *
+_copyArrayExpr(ArrayExpr *from)
+{
+ ArrayExpr *newnode = makeNode(ArrayExpr);
+
+ COPY_SCALAR_FIELD(array_typeid);
+ COPY_SCALAR_FIELD(element_typeid);
+ COPY_NODE_FIELD(elements);
+ COPY_SCALAR_FIELD(multidims);
+
+ return newnode;
+}
+
+/*
+ * _copyRowExpr
+ */
+static RowExpr *
+_copyRowExpr(RowExpr *from)
+{
+ RowExpr *newnode = makeNode(RowExpr);
+
+ COPY_NODE_FIELD(args);
+ COPY_SCALAR_FIELD(row_typeid);
+ COPY_SCALAR_FIELD(row_format);
+
+ return newnode;
+}
+
+/*
+ * _copyRowCompareExpr
+ */
+static RowCompareExpr *
+_copyRowCompareExpr(RowCompareExpr *from)
+{
+ RowCompareExpr *newnode = makeNode(RowCompareExpr);
+
+ COPY_SCALAR_FIELD(rctype);
+ COPY_NODE_FIELD(opnos);
+ COPY_NODE_FIELD(opclasses);
+ COPY_NODE_FIELD(largs);
+ COPY_NODE_FIELD(rargs);
+
+ return newnode;
+}
+
+/*
+ * _copyCoalesceExpr
+ */
+static CoalesceExpr *
+_copyCoalesceExpr(CoalesceExpr *from)
+{
+ CoalesceExpr *newnode = makeNode(CoalesceExpr);
+
+ COPY_SCALAR_FIELD(coalescetype);
+ COPY_NODE_FIELD(args);
+
+ return newnode;
+}
+
+/*
+ * _copyMinMaxExpr
+ */
+static MinMaxExpr *
+_copyMinMaxExpr(MinMaxExpr *from)
+{
+ MinMaxExpr *newnode = makeNode(MinMaxExpr);
+
+ COPY_SCALAR_FIELD(minmaxtype);
+ COPY_SCALAR_FIELD(op);
+ COPY_NODE_FIELD(args);
+
+ return newnode;
+}
+
+/*
+ * _copyNullIfExpr (same as OpExpr)
+ */
+static NullIfExpr *
+_copyNullIfExpr(NullIfExpr *from)
+{
+ NullIfExpr *newnode = makeNode(NullIfExpr);
+
+ COPY_SCALAR_FIELD(opno);
+ COPY_SCALAR_FIELD(opfuncid);
+ COPY_SCALAR_FIELD(opresulttype);
+ COPY_SCALAR_FIELD(opretset);
+ COPY_NODE_FIELD(args);
+
+ return newnode;
+}
+