when propagate_cond_constants will be called?
"Mr. Left" <[email protected]> Mon, 11 Feb 2013 00:12:58 +0800 (CST)
| Newsgroups | gmane.comp.db.mysql.devel |
|---|---|
| Message-ID | <[email protected]> |
Hi, all Is there anyone can tell me when the function propagate_cond_constants() will be really used? Cause I found after the build_equal_items(), all Item_func::EQ_FUNC are transformed to Item_func::MULT_EQUAL_FUNC. And the example in mysql internals 8.2.1.1. Constant Propagation, just refer to propagate_cond_constants(), but all translate are really finished in build_equal_items(). So I want to know when the function propagate_cond_constants() will really work? It's kind of you to supply an example. Thank you very much. -- MySQL Internals Mailing List For list archives: http://lists.mysql.com/internals To unsubscribe: http://lists.mysql.com/internals