bk commit into 5.0 tree (konstantin:1.1899)

[konstantin]

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ChangeSet
  1.1899 05/05/23 22:35:16 konstantin@stripped +1 -0
  A comment for view_prepare_mode.

  sql/sql_lex.h
    1.178 05/05/23 22:35:11 konstantin@stripped +7 -1
    A comment.

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	konstantin
# Host:	dragonfly.local
# Root:	/opt/local/work/mysql-5.0-root

--- 1.177/sql/sql_lex.h	2005-05-18 20:00:15 +04:00
+++ 1.178/sql/sql_lex.h	2005-05-23 22:35:11 +04:00
@@ -757,7 +757,13 @@
   bool drop_if_exists, drop_temporary, local_file, one_shot_set;
   bool in_comment, ignore_space, verbose, no_write_to_binlog;
   bool tx_chain, tx_release;
-  /* special JOIN::prepare mode: changing of query is prohibited */
+  /*
+    Special JOIN::prepare mode: changing of query is prohibited.
+    When creating a view, we need to just check its syntax omitting
+    any optimizations: afterwards definition of the view will be
+    reconstructed by means of ::print() methods and written to
+    to an .frm file. We need this definition to stay untouched.
+  */
   bool view_prepare_mode;
   bool safe_to_cache_query;
   bool subqueries, ignore;