database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-30 16:24:05 +03:00
Code Activity

Merge chilla.local:/home/mydev/mysql-5.0-bug20627

Browse Source 
into  chilla.local:/home/mydev/mysql-5.1-bug20627
This commit is contained in:
istruewing@chilla.local
2006-09-20 12:17:51 +02:00
parent c49c58cbf4 e9e58c6682
commit 1639e4a45f
3 changed files with 362 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

46
sql/sql_insert.cc
View File

@ -1330,6 +1330,9 @@ public:
bool query_start_used, ignore, log_query;
bool stmt_depends_on_first_successful_insert_id_in_prev_stmt;
ulonglong first_successful_insert_id_in_prev_stmt;
ulonglong next_insert_id;
ulong auto_increment_increment;
ulong auto_increment_offset;
timestamp_auto_set_type timestamp_field_type;
LEX_STRING query;
@ -1743,6 +1746,22 @@ write_delayed(THD *thd,TABLE *table, enum_duplicates duplic,
thd->first_successful_insert_id_in_prev_stmt;
row->timestamp_field_type= table->timestamp_field_type;
/* The session variable settings can always be copied. */
row->auto_increment_increment= thd->variables.auto_increment_increment;
row->auto_increment_offset= thd->variables.auto_increment_offset;
/*
Next insert id must be set for the first value in a multi-row insert
only. So clear it after the first use. Assume a multi-row insert.
Since the user thread doesn't really execute the insert,
thd->next_insert_id is left untouched between the rows. If we copy
the same insert id to every row of the multi-row insert, the delayed
insert thread would copy this before inserting every row. Thus it
tries to insert all rows with the same insert id. This fails on the
unique constraint. So just the first row would be really inserted.
*/
row->next_insert_id= thd->next_insert_id;
thd->next_insert_id= 0;
di->rows.push_back(row);
di->stacked_inserts++;
di->status=1;
@ -2122,6 +2141,14 @@ bool delayed_insert::handle_inserts(void)
row->stmt_depends_on_first_successful_insert_id_in_prev_stmt;
table->timestamp_field_type= row->timestamp_field_type;
/* The session variable settings can always be copied. */
thd.variables.auto_increment_increment= row->auto_increment_increment;
thd.variables.auto_increment_offset= row->auto_increment_offset;
/* Next insert id must be used only if non-zero. */
if (row->next_insert_id)
thd.next_insert_id= row->next_insert_id;
DBUG_PRINT("loop", ("next_insert_id: %lu", (ulong) thd.next_insert_id));
info.ignore= row->ignore;
info.handle_duplicates= row->dup;
if (info.ignore ||
@ -2143,6 +2170,20 @@ bool delayed_insert::handle_inserts(void)
info.error_count++; // Ignore errors
thread_safe_increment(delayed_insert_errors,&LOCK_delayed_status);
row->log_query = 0;
/*
We must reset next_insert_id. Otherwise all following rows may
become duplicates. If write_record() failed on a duplicate and
next_insert_id would be left unchanged, the next rows would also
be tried with the same insert id and would fail. Since the end
of a multi-row statement is unknown here, all following rows in
the queue would be dropped, regardless which thread added them.
After the queue is used up, next_insert_id is cleared and the
next run will succeed. This could even happen if these come from
the same multi-row statement as the current queue contents. That
way it would look somewhat random which rows are rejected after
a duplicate.
*/
thd.next_insert_id= 0;
}
if (using_ignore)
@ -2199,6 +2240,7 @@ bool delayed_insert::handle_inserts(void)
/* This should never happen */
table->file->print_error(error,MYF(0));
sql_print_error("%s",thd.net.last_error);
DBUG_PRINT("error", ("HA_EXTRA_NO_CACHE failed in loop"));
goto err;
}
query_cache_invalidate3(&thd, table, 1);
@ -2241,6 +2283,7 @@ bool delayed_insert::handle_inserts(void)
{ // This shouldn't happen
table->file->print_error(error,MYF(0));
sql_print_error("%s",thd.net.last_error);
DBUG_PRINT("error", ("HA_EXTRA_NO_CACHE failed after loop"));
goto err;
}
query_cache_invalidate3(&thd, table, 1);
@ -2248,13 +2291,16 @@ bool delayed_insert::handle_inserts(void)
DBUG_RETURN(0);
err:
DBUG_EXECUTE("error", max_rows= 0;);
/* Remove all not used rows */
while ((row=rows.get()))
{
delete row;
thread_safe_increment(delayed_insert_errors,&LOCK_delayed_status);
stacked_inserts--;
DBUG_EXECUTE("error", max_rows++;);
}
DBUG_PRINT("error", ("dropped %lu rows after an error", max_rows));
thread_safe_increment(delayed_insert_errors, &LOCK_delayed_status);
pthread_mutex_lock(&mutex);
DBUG_RETURN(1);