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-rw-r--r--src/backend/commands/prepare.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/src/backend/commands/prepare.c b/src/backend/commands/prepare.c
index bf6aad1ac14..fe716c5e9f6 100644
--- a/src/backend/commands/prepare.c
+++ b/src/backend/commands/prepare.c
@@ -10,7 +10,7 @@
* Copyright (c) 2002-2008, PostgreSQL Global Development Group
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/commands/prepare.c,v 1.88 2008/07/18 20:26:06 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/commands/prepare.c,v 1.89 2008/07/21 15:26:55 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -162,6 +162,12 @@ PrepareQuery(PrepareStmt *stmt, const char *queryString)
/*
* Implements the 'EXECUTE' utility statement.
+ *
+ * Note: this is one of very few places in the code that needs to deal with
+ * two query strings at once. The passed-in queryString is that of the
+ * EXECUTE, which we might need for error reporting while processing the
+ * parameter expressions. The query_string that we copy from the plan
+ * source is that of the original PREPARE.
*/
void
ExecuteQuery(ExecuteStmt *stmt, const char *queryString,