src/include/commands/comment.h

   1 /*
   2  * src/include/commands/comment.h
   3  *
   4  *-------------------------------------------------------------------------
   5  *
   6  * comment.h
   7  *
   8  * Prototypes for functions in commands/comment.c
   9  *
  10  * Copyright (c) 1999-2019, PostgreSQL Global Development Group
  11  *
  12  *-------------------------------------------------------------------------
  13  */
  14
  15 #ifndef COMMENT_H
  16 #define COMMENT_H
  17
  18 #include "catalog/objectaddress.h"
  19 #include "nodes/parsenodes.h"
  20
  21 /*------------------------------------------------------------------
  22  * Function Prototypes --
  23  *
  24  * The following prototypes define the public functions of the comment
  25  * related routines.  CommentObject() implements the SQL "COMMENT ON"
  26  * command.  DeleteComments() deletes all comments for an object.
  27  * CreateComments creates (or deletes, if comment is NULL) a comment
  28  * for a specific key.  There are versions of these two methods for
  29  * both normal and shared objects.
  30  *------------------------------------------------------------------
  31  */
  32
  33 extern ObjectAddress CommentObject(CommentStmt *stmt);
  34
  35 extern void DeleteComments(Oid oid, Oid classoid, int32 subid);
  36
  37 extern void CreateComments(Oid oid, Oid classoid, int32 subid, const char *comment);
  38
  39 extern void DeleteSharedComments(Oid oid, Oid classoid);
  40
  41 extern void CreateSharedComments(Oid oid, Oid classoid, const char *comment);
  42
  43 extern char *GetComment(Oid oid, Oid classoid, int32 subid);
  44
  45 #endif                                                  /* COMMENT_H */