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Replace the parser's namespace tree (which formerly had the same

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representation as the jointree) with two lists of RTEs, one showing
the RTEs accessible by qualified names, and the other showing the RTEs
accessible by unqualified names.  I think this is conceptually simpler
than what we did before, and it's sure a whole lot easier to search.
This seems to eliminate the parse-time bottleneck for deeply nested
JOIN structures that was exhibited by phil@vodafone.
This commit is contained in:
Tom Lane
2005-06-05 00:38:11 +00:00
parent efe0d0808b
commit a4996a8953
10 changed files with 339 additions and 497 deletions
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4
src/backend/commands/tablecmds.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/tablecmds.c,v 1.159 2005/05/30 07:20:58 neilc Exp $
* $PostgreSQL: pgsql/src/backend/commands/tablecmds.c,v 1.160 2005/06/05 00:38:08 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -4720,7 +4720,7 @@ ATPrepAlterColumnType(List **wqueue,
NULL,
false,
true);
addRTEtoQuery(pstate, rte, false, true);
addRTEtoQuery(pstate, rte, false, true, true);
transform = transformExpr(pstate, cmd->transform);