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WL#2486 - Natural/using join according to SQL:2003.

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Post-review fixes according to Monty's review.
This commit is contained in:
timour@mysql.com
2005-11-28 21:57:50 +02:00
parent f5804869e3
commit cc7d1268c4
12 changed files with 189 additions and 183 deletions
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23
sql/sql_parse.cc
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@@ -6584,36 +6584,39 @@ void st_select_lex::set_lock_for_tables(thr_lock_type lock_type)
/*
Create a new name resolution context for a JOIN ... ON clause.
Push a new name resolution context for a JOIN ... ON clause to the
context stack of a query block.
SYNOPSIS
make_join_on_context()
push_new_name_resolution_context()
thd pointer to current thread
left_op left operand of the JOIN
right_op rigth operand of the JOIN
DESCRIPTION
Create a new name resolution context for a JOIN ... ON clause,
and set the first and last leaves of the list of table references
to be used for name resolution.
set the first and last leaves of the list of table references
to be used for name resolution, and push the newly created
context to the stack of contexts of the query.
RETURN
A new context if all is OK
NULL - if a memory allocation error occured
FALSE if all is OK
TRUE if a memory allocation error occured
*/
Name_resolution_context *
make_join_on_context(THD *thd, TABLE_LIST *left_op, TABLE_LIST *right_op)
bool
push_new_name_resolution_context(THD *thd,
TABLE_LIST *left_op, TABLE_LIST *right_op)
{
Name_resolution_context *on_context;
if (!(on_context= new (thd->mem_root) Name_resolution_context))
return NULL;
return TRUE;
on_context->init();
on_context->first_name_resolution_table=
left_op->first_leaf_for_name_resolution();
on_context->last_name_resolution_table=
right_op->last_leaf_for_name_resolution();
return on_context;
return thd->lex->push_context(on_context);
}