Movatterモバイル変換


[0]ホーム

URL:


Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly

Sign up
Appearance settings

Commitad15560

Browse files
Jan WieckJan Wieck
Jan Wieck
authored and
Jan Wieck
committed
Enabling automatic primary key detection for self-referencing
FOREIGN KEY constraint during CREATE TABLE. Tnx to Stephan.Jan
1 parent582ec17 commitad15560

File tree

1 file changed

+28
-3
lines changed

1 file changed

+28
-3
lines changed

‎src/backend/parser/analyze.c

Lines changed: 28 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@
66
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
77
* Portions Copyright (c) 1994, Regents of the University of California
88
*
9-
*$Id: analyze.c,v 1.135 2000/02/04 18:49:32 wieck Exp $
9+
*$Id: analyze.c,v 1.136 2000/02/05 00:20:38 wieck Exp $
1010
*
1111
*-------------------------------------------------------------------------
1212
*/
@@ -967,11 +967,36 @@ transformCreateStmt(ParseState *pstate, CreateStmt *stmt)
967967

968968
/*
969969
* If the attribute list for the referenced table was
970-
* omitted, lookup for the definition of the primary key
970+
* omitted, lookup for the definition of the primary key.
971+
* If the referenced table is this table, use the definition
972+
* we found above, rather than looking to the system
973+
* tables.
971974
*
972975
*/
973976
if (fkconstraint->fk_attrs!=NIL&&fkconstraint->pk_attrs==NIL)
974-
transformFkeyGetPrimaryKey(fkconstraint);
977+
if (strcmp(fkconstraint->pktable_name,stmt->relname)!=0)
978+
transformFkeyGetPrimaryKey(fkconstraint);
979+
elseif (pkey!=NULL)
980+
{
981+
List*pkey_attr=pkey->indexParams;
982+
List*attr;
983+
IndexElem*ielem;
984+
Ident*pkattr;
985+
986+
foreach (attr,pkey_attr)
987+
{
988+
ielem=lfirst(attr);
989+
pkattr= (Ident*)makeNode(Ident);
990+
pkattr->name=pstrdup(ielem->name);
991+
pkattr->indirection=NIL;
992+
pkattr->isRel= false;
993+
fkconstraint->pk_attrs=lappend(fkconstraint->pk_attrs,pkattr);
994+
}
995+
}
996+
else {
997+
elog(ERROR,"PRIMARY KEY for referenced table \"%s\" not found",
998+
fkconstraint->pktable_name);
999+
}
9751000

9761001
/*
9771002
* Build a CREATE CONSTRAINT TRIGGER statement for the CHECK

0 commit comments

Comments
 (0)

[8]ページ先頭

©2009-2025 Movatter.jp