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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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34
src/backend/utils/adt/ruleutils.c
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@ -3,7 +3,7 @@
* out of its tuple
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/ruleutils.c,v 1.39 2000/01/15 22:43:24 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/ruleutils.c,v 1.40 2000/02/15 03:37:56 thomas Exp $
*
* This software is copyrighted by Jan Wieck - Hamburg.
*
@ -922,9 +922,9 @@ get_select_query_def(Query *query, deparse_context *context)
continue;
rte = (RangeTblEntry *) lfirst(l);
if (!strcmp(rte->refname, "*NEW*"))
if (!strcmp(rte->ref->relname, "*NEW*"))
continue;
if (!strcmp(rte->refname, "*CURRENT*"))
if (!strcmp(rte->ref->relname, "*CURRENT*"))
continue;
rt_constonly = FALSE;
@ -980,10 +980,10 @@ get_select_query_def(Query *query, deparse_context *context)
{
rte = (RangeTblEntry *) lfirst(l);
if (!strcmp(rte->refname, "*NEW*"))
if (!strcmp(rte->ref->relname, "*NEW*"))
continue;
if (!strcmp(rte->refname, "*CURRENT*"))
if (!strcmp(rte->ref->relname, "*CURRENT*"))
continue;
appendStringInfo(buf, sep);
@ -991,9 +991,19 @@ get_select_query_def(Query *query, deparse_context *context)
appendStringInfo(buf, "%s%s",
quote_identifier(rte->relname),
inherit_marker(rte));
if (strcmp(rte->relname, rte->refname) != 0)
if (strcmp(rte->relname, rte->ref->relname) != 0)
{
List *col;
appendStringInfo(buf, " %s",
quote_identifier(rte->refname));
quote_identifier(rte->ref->relname));
appendStringInfo(buf, " (");
foreach (col, rte->ref->attrs)
{
if (col != lfirst(rte->ref->attrs))
appendStringInfo(buf, ", ");
appendStringInfo(buf, "%s", strVal(col));
}
}
}
}
}
@ -1071,9 +1081,9 @@ get_insert_query_def(Query *query, deparse_context *context)
continue;
rte = (RangeTblEntry *) lfirst(l);
if (!strcmp(rte->refname, "*NEW*"))
if (!strcmp(rte->ref->relname, "*NEW*"))
continue;
if (!strcmp(rte->refname, "*CURRENT*"))
if (!strcmp(rte->ref->relname, "*CURRENT*"))
continue;
rt_constonly = FALSE;
@ -1241,13 +1251,13 @@ get_rule_expr(Node *node, deparse_context *context)
if (context->varprefix)
{
if (!strcmp(rte->refname, "*NEW*"))
if (!strcmp(rte->ref->relname, "*NEW*"))
appendStringInfo(buf, "new.");
else if (!strcmp(rte->refname, "*CURRENT*"))
else if (!strcmp(rte->ref->relname, "*CURRENT*"))
appendStringInfo(buf, "old.");
else
appendStringInfo(buf, "%s.",
quote_identifier(rte->refname));
quote_identifier(rte->ref->relname));
}
appendStringInfo(buf, "%s",
quote_identifier(get_attribute_name(rte->relid,