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db_include/commands/comment.h

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+/*
+ * src/include/commands/comment.h
+ *
+ *-------------------------------------------------------------------------
+ *
+ * comment.h
+ *
+ * Prototypes for functions in commands/comment.c
+ *
+ * Copyright (c) 1999-2021, PostgreSQL Global Development Group
+ *
+ *-------------------------------------------------------------------------
+ */
+
+#ifndef COMMENT_H
+#define COMMENT_H
+
+#include "catalog/objectaddress.h"
+#include "nodes/parsenodes.h"
+
+/*------------------------------------------------------------------
+ * Function Prototypes --
+ *
+ * The following prototypes define the public functions of the comment
+ * related routines.  CommentObject() implements the SQL "COMMENT ON"
+ * command.  DeleteComments() deletes all comments for an object.
+ * CreateComments creates (or deletes, if comment is NULL) a comment
+ * for a specific key.  There are versions of these two methods for
+ * both normal and shared objects.
+ *------------------------------------------------------------------
+ */
+
+extern ObjectAddress CommentObject(CommentStmt *stmt);
+
+extern void DeleteComments(Oid oid, Oid classoid, int32 subid);
+
+extern void CreateComments(Oid oid, Oid classoid, int32 subid, const char *comment);
+
+extern void DeleteSharedComments(Oid oid, Oid classoid);
+
+extern void CreateSharedComments(Oid oid, Oid classoid, const char *comment);
+
+extern char *GetComment(Oid oid, Oid classoid, int32 subid);
+
+#endif							/* COMMENT_H */