>KEY CONCERNS >============ >1.I want to know more about how to debug MySQL
> internal. Before this project, I always used gdb to debug mysqld and it worked well. >
> But in this project, I meet some problems. For example, the source code like: >
> if(compare_names(db, INFOSCHEMA_NAME.str) != 0) > DBUG_RETURN(NULL); >
> …… > DBUG_RETURN(share); > If db does not equal to
> INFOSCHEMA_NAME.str, it will return null. But in debugging, it jumps to last statement
> DBUG_RETURN(share) any way. > Sometimes some statements will display and run in gdb
> 2-3 times. > Does the source code text file have some problems? Sergei, how do you
> debug MySQL internal?
I replaced -O2 by -O0 in my storage engine makeflie.am, and it worked well. Another
stupid question.
>2.?What?kinds?of?members?in?TABLE_SHARE?must?be?initialized?in?open_table??In?my?discover,?I?fill?TABLE_SHARE?members:
>???share->mem_root;?share->field;?share->fields;?share->key_info;?share->keys;?share->set_table_cache_key;
>???share->version;?share->table_space;?share->table_map_id;?share->LOCK_ha_data;?share->null_fields;?
>???share->blob_fields;?share->db_plugin;?share->reclength;?share->rec_buff_length;?
>???Because?I?can?not?still?push?my?branch,?I?write?these?here.
Today infoschema_discover seems work right. It succeed in creating
INFORMATION_SCHEMA.ENGINES table's TABLE_SHARE, and it work right and
reaches to ha_infoschema::rnd and ha_infoschema::rnd_next. I will add others I_S
tables' definitions into I_S storage engine soon. After this, fetching
data for I_S tables will start.
GSoC midterm surveys are coming soon. Do I have any problems about it? Or Do I have
anthing to do for it? I think the problem is my branch can
not be push to launchpad.
https://answers.edge.launchpad.net/launchpad-code/+question/75673
Regards.
Robin.
