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Carry column aliases from the parser frontend. Enables queries like

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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.
This commit is contained in:
Thomas G. Lockhart
2000-02-15 03:38:29 +00:00
parent 92c8437d8d
commit a344a6e7b5
27 changed files with 1102 additions and 324 deletions
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8
src/backend/optimizer/prep/prepunion.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/prep/prepunion.c,v 1.43 2000/02/03 06:12:19 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/prep/prepunion.c,v 1.44 2000/02/15 03:37:26 thomas Exp $
*
*-------------------------------------------------------------------------
*/
@ -430,9 +430,9 @@ new_rangetable_entry(Oid new_relid, RangeTblEntry *old_entry)
RangeTblEntry *new_entry = copyObject(old_entry);
/* ??? someone tell me what the following is doing! - ay 11/94 */
if (!strcmp(new_entry->refname, "*CURRENT*") ||
!strcmp(new_entry->refname, "*NEW*"))
new_entry->refname = get_rel_name(new_relid);
if (!strcmp(new_entry->ref->relname, "*CURRENT*") ||
!strcmp(new_entry->ref->relname, "*NEW*"))
new_entry->ref->relname = get_rel_name(new_relid);
else
new_entry->relname = get_rel_name(new_relid);