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Add COMMENT ON CONSTRAINT facility (from Rod Taylor's pg_constraint patch).

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Fix comment.c to not depend on parser token values, per discussion awhile
back.
This commit is contained in:
Tom Lane
2002-07-14 23:38:13 +00:00
parent c4fb2b4e9e
commit d5fa19c6ee
3 changed files with 154 additions and 46 deletions
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47
src/backend/parser/gram.y
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@@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.339 2002/07/12 18:43:17 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.340 2002/07/14 23:38:13 tgl Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@@ -2364,7 +2364,7 @@ CommentStmt:
IS comment_text
{
CommentStmt *n = makeNode(CommentStmt);
n->objtype = AGGREGATE;
n->objtype = COMMENT_ON_AGGREGATE;
n->objname = $4;
n->objargs = makeList1($6);
n->comment = $9;
@@ -2373,7 +2373,7 @@ CommentStmt:
| COMMENT ON FUNCTION func_name func_args IS comment_text
{
CommentStmt *n = makeNode(CommentStmt);
n->objtype = FUNCTION;
n->objtype = COMMENT_ON_FUNCTION;
n->objname = $4;
n->objargs = $5;
n->comment = $7;
@@ -2383,16 +2383,16 @@ CommentStmt:
IS comment_text
{
CommentStmt *n = makeNode(CommentStmt);
n->objtype = OPERATOR;
n->objtype = COMMENT_ON_OPERATOR;
n->objname = $4;
n->objargs = $6;
n->comment = $9;
$$ = (Node *) n;
}
| COMMENT ON TRIGGER name ON any_name IS comment_text
| COMMENT ON CONSTRAINT name ON any_name IS comment_text
{
CommentStmt *n = makeNode(CommentStmt);
n->objtype = TRIGGER;
n->objtype = COMMENT_ON_CONSTRAINT;
n->objname = lappend($6, makeString($4));
n->objargs = NIL;
n->comment = $8;
@@ -2401,7 +2401,7 @@ CommentStmt:
| COMMENT ON RULE name ON any_name IS comment_text
{
CommentStmt *n = makeNode(CommentStmt);
n->objtype = RULE;
n->objtype = COMMENT_ON_RULE;
n->objname = lappend($6, makeString($4));
n->objargs = NIL;
n->comment = $8;
@@ -2411,29 +2411,38 @@ CommentStmt:
{
/* Obsolete syntax supported for awhile for compatibility */
CommentStmt *n = makeNode(CommentStmt);
n->objtype = RULE;
n->objtype = COMMENT_ON_RULE;
n->objname = makeList1(makeString($4));
n->objargs = NIL;
n->comment = $6;
$$ = (Node *) n;
}
| COMMENT ON TRIGGER name ON any_name IS comment_text
{
CommentStmt *n = makeNode(CommentStmt);
n->objtype = COMMENT_ON_TRIGGER;
n->objname = lappend($6, makeString($4));
n->objargs = NIL;
n->comment = $8;
$$ = (Node *) n;
}
;
comment_type:
COLUMN { $$ = COLUMN; }
| DATABASE { $$ = DATABASE; }
| SCHEMA { $$ = SCHEMA; }
| INDEX { $$ = INDEX; }
| SEQUENCE { $$ = SEQUENCE; }
| TABLE { $$ = TABLE; }
| DOMAIN_P { $$ = TYPE_P; }
| TYPE_P { $$ = TYPE_P; }
| VIEW { $$ = VIEW; }
COLUMN { $$ = COMMENT_ON_COLUMN; }
| DATABASE { $$ = COMMENT_ON_DATABASE; }
| SCHEMA { $$ = COMMENT_ON_SCHEMA; }
| INDEX { $$ = COMMENT_ON_INDEX; }
| SEQUENCE { $$ = COMMENT_ON_SEQUENCE; }
| TABLE { $$ = COMMENT_ON_TABLE; }
| DOMAIN_P { $$ = COMMENT_ON_TYPE; }
| TYPE_P { $$ = COMMENT_ON_TYPE; }
| VIEW { $$ = COMMENT_ON_VIEW; }
;
comment_text:
Sconst { $$ = $1; }
| NULL_P { $$ = NULL; }
Sconst { $$ = $1; }
| NULL_P { $$ = NULL; }
;
/*****************************************************************************