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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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10
src/backend/commands/explain.c
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@ -5,7 +5,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994-5, Regents of the University of California
*
* $Id: explain.c,v 1.52 2000/01/26 05:56:13 momjian Exp $
* $Id: explain.c,v 1.53 2000/02/15 03:36:39 thomas Exp $
*
*/
@ -230,12 +230,12 @@ explain_outNode(StringInfo str, Plan *plan, int indent, ExplainState *es)
RangeTblEntry *rte = nth(((Scan *) plan)->scanrelid - 1, es->rtable);
appendStringInfo(str, " on ");
if (strcmp(rte->refname, rte->relname) != 0)
if (strcmp(rte->ref->relname, rte->relname) != 0)
{
appendStringInfo(str, "%s ",
stringStringInfo(rte->relname));
}
appendStringInfo(str, stringStringInfo(rte->refname));
appendStringInfo(str, stringStringInfo(rte->ref->relname));
}
break;
case T_TidScan:
@ -244,12 +244,12 @@ explain_outNode(StringInfo str, Plan *plan, int indent, ExplainState *es)
RangeTblEntry *rte = nth(((TidScan *) plan)->scan.scanrelid - 1, es->rtable);
appendStringInfo(str, " on ");
if (strcmp(rte->refname, rte->relname) != 0)
if (strcmp(rte->ref->relname, rte->relname) != 0)
{
appendStringInfo(str, "%s ",
stringStringInfo(rte->relname));
}
appendStringInfo(str, stringStringInfo(rte->refname));
appendStringInfo(str, stringStringInfo(rte->ref->relname));
}
break;
default: