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| author | Thomas G. Lockhart <lockhart@fourpalms.org> | 2000-02-15 03:38:29 +0000 |
|---|---|---|
| committer | Thomas G. Lockhart <lockhart@fourpalms.org> | 2000-02-15 03:38:29 +0000 |
| commit | a344a6e7b5d7b2b87f33a155c3ef88bdfdce3fd8 (patch) | |
| tree | 78c19baad416cfe014237bc726baff63aff2b150 /src/backend/nodes/makefuncs.c | |
| parent | 92c8437d8de8efeb5324fcccb0175beec8e66619 (diff) | |
| download | postgresql-a344a6e7b5d7b2b87f33a155c3ef88bdfdce3fd8.tar.gz postgresql-a344a6e7b5d7b2b87f33a155c3ef88bdfdce3fd8.zip | |
Carry column aliases from the parser frontend. Enables queries like
SELECT a FROM t1 tx (a);
Allow join syntax, including queries like
SELECT * FROM t1 NATURAL JOIN t2;
Update RTE structure to hold column aliases in an Attr structure.
Diffstat (limited to 'src/backend/nodes/makefuncs.c')
| -rw-r--r-- | src/backend/nodes/makefuncs.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/src/backend/nodes/makefuncs.c b/src/backend/nodes/makefuncs.c index 221a83d713e..e42930ef87b 100644 --- a/src/backend/nodes/makefuncs.c +++ b/src/backend/nodes/makefuncs.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/nodes/makefuncs.c,v 1.19 2000/01/26 05:56:31 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/nodes/makefuncs.c,v 1.20 2000/02/15 03:37:09 thomas Exp $ * * NOTES * Creator functions in POSTGRES 4.2 are generated automatically. Most of @@ -141,3 +141,26 @@ makeConst(Oid consttype, cnst->constiscast = constiscast; return cnst; } + +/* + * makeAttr - + * creates an Attr node + */ +Attr * +makeAttr(char *relname, char *attname) +{ + Attr *a = makeNode(Attr); + + a->relname = pstrdup(relname); + a->paramNo = NULL; + if (attname != NULL) + a->attrs = lcons(makeString(pstrdup(attname)), NIL); + a->indirection = NULL; + + return a; +} + + + + + |