From 49451ae03e7b240b4403b4a37a8f8a7107dc1a76 Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Sat, 17 Feb 2007 19:33:32 +0000
Subject: [PATCH] Add code so that when COPY_PARSE_PLAN_TREES is defined, the
copy and equal functions are checked for raw parse trees as well as
post-analysis trees. This was never very important before, but the upcoming
plan cache control module will need to be able to do copyObject() on raw
parse trees.
---
src/backend/tcop/postgres.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/src/backend/tcop/postgres.c b/src/backend/tcop/postgres.c
index 9ca8b981ee7..f00897ee622 100644
--- a/src/backend/tcop/postgres.c
+++ b/src/backend/tcop/postgres.c
@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/tcop/postgres.c,v 1.523 2007/02/15 23:23:23 alvherre Exp $
+ * $PostgreSQL: pgsql/src/backend/tcop/postgres.c,v 1.524 2007/02/17 19:33:32 tgl Exp $
*
* NOTES
* this is the "main" module of the postgres backend and
@@ -540,6 +540,19 @@ pg_parse_query(const char *query_string)
if (log_parser_stats)
ShowUsage("PARSER STATISTICS");
+#ifdef COPY_PARSE_PLAN_TREES
+ /* Optional debugging check: pass raw parsetrees through copyObject() */
+ {
+ List *new_list = (List *) copyObject(raw_parsetree_list);
+
+ /* This checks both copyObject() and the equal() routines... */
+ if (!equal(new_list, raw_parsetree_list))
+ elog(WARNING, "copyObject() failed to produce an equal raw parse tree");
+ else
+ raw_parsetree_list = new_list;
+ }
+#endif
+
return raw_parsetree_list;
}
--
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