1 files changed, 108 insertions, 0 deletions
diff --git a/src/include/tcop/deparse_utility.h b/src/include/tcop/deparse_utility.h
new file mode 100644
index 0000000..b585810
--- /dev/null
+++ b/src/include/tcop/deparse_utility.h
@@ -0,0 +1,108 @@
+/*-------------------------------------------------------------------------
+ *
+ * deparse_utility.h
+ *
+ * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/tcop/deparse_utility.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef DEPARSE_UTILITY_H
+#define DEPARSE_UTILITY_H
+
+#include "access/attnum.h"
+#include "catalog/objectaddress.h"
+#include "nodes/nodes.h"
+#include "utils/aclchk_internal.h"
+
+
+/*
+ * Support for keeping track of collected commands.
+ */
+typedef enum CollectedCommandType
+{
+	SCT_Simple,
+	SCT_AlterTable,
+	SCT_Grant,
+	SCT_AlterOpFamily,
+	SCT_AlterDefaultPrivileges,
+	SCT_CreateOpClass,
+	SCT_AlterTSConfig
+} CollectedCommandType;
+
+/*
+ * For ALTER TABLE commands, we keep a list of the subcommands therein.
+ */
+typedef struct CollectedATSubcmd
+{
+	ObjectAddress address;		/* affected column, constraint, index, ... */
+	Node	   *parsetree;
+} CollectedATSubcmd;
+
+typedef struct CollectedCommand
+{
+	CollectedCommandType type;
+
+	bool		in_extension;
+	Node	   *parsetree;
+
+	union
+	{
+		/* most commands */
+		struct
+		{
+			ObjectAddress address;
+			ObjectAddress secondaryObject;
+		}			simple;
+
+		/* ALTER TABLE, and internal uses thereof */
+		struct
+		{
+			Oid			objectId;
+			Oid			classId;
+			List	   *subcmds;
+		}			alterTable;
+
+		/* GRANT / REVOKE */
+		struct
+		{
+			InternalGrant *istmt;
+		}			grant;
+
+		/* ALTER OPERATOR FAMILY */
+		struct
+		{
+			ObjectAddress address;
+			List	   *operators;
+			List	   *procedures;
+		}			opfam;
+
+		/* CREATE OPERATOR CLASS */
+		struct
+		{
+			ObjectAddress address;
+			List	   *operators;
+			List	   *procedures;
+		}			createopc;
+
+		/* ALTER TEXT SEARCH CONFIGURATION ADD/ALTER/DROP MAPPING */
+		struct
+		{
+			ObjectAddress address;
+			Oid		   *dictIds;
+			int			ndicts;
+		}			atscfg;
+
+		/* ALTER DEFAULT PRIVILEGES */
+		struct
+		{
+			ObjectType	objtype;
+		}			defprivs;
+	}			d;
+
+	struct CollectedCommand *parent;	/* when nested */
+} CollectedCommand;
+
+#endif							/* DEPARSE_UTILITY_H */