Re: IN question

All:

In the interest of investigating various throughput limits.
Where do we get cache and buffer and heap size limitations, and how to set
these?
Is there something similar in postgres-world to the mysql-world equivalent
of the following:

mysql> show variables like '%size%';
+---------------------------------+------------+
| Variable_name | Value |
+---------------------------------+------------+
| bdb_cache_size | 8388600 |
| bdb_log_buffer_size | 32768 |
| binlog_cache_size | 32768 |
| bulk_insert_buffer_size | 8388608 |
| delayed_queue_size | 1000 |
| innodb_additional_mem_pool_size | 1048576 |
| innodb_buffer_pool_size | 8388608 |
| innodb_log_buffer_size | 1048576 |
| innodb_log_file_size | 5242880 |
| join_buffer_size | 131072 |
| key_buffer_size | 8388600 |
| key_cache_block_size | 1024 |
| max_binlog_cache_size | 4294967295 |
| max_binlog_size | 1073741824 |
| max_heap_table_size | 16777216 |
| max_join_size | 4294967295 |
| max_relay_log_size | 0 |
| myisam_data_pointer_size | 4 |
| myisam_max_extra_sort_file_size | 2147483648 |
| myisam_max_sort_file_size | 2147483647 |
| myisam_sort_buffer_size | 8388608 |
| preload_buffer_size | 32768 |
| query_alloc_block_size | 8192 |
| query_cache_size | 0 |
| query_prealloc_size | 8192 |
| range_alloc_block_size | 2048 |
| read_buffer_size | 131072 |
| read_rnd_buffer_size | 262144 |
| sort_buffer_size | 2097144 |
| thread_cache_size | 0 |
| tmp_table_size | 33554432 |
| transaction_alloc_block_size | 8192 |
| transaction_prealloc_size | 4096 |
+---------------------------------+------------+
33 rows in set (0.00 sec)

mysql> show variables like '%limit%';
+--------------------------+---------+
| Variable_name | Value |
+--------------------------+---------+
| delayed_insert_limit | 100 |
| ft_query_expansion_limit | 20 |
| key_cache_division_limit | 100 |
| open_files_limit | 10951 |
| query_cache_limit | 1048576 |
| relay_log_space_limit | 0 |
+--------------------------+---------+
6 rows in set (0.00 sec)

On Mon, Dec 15, 2008 at 12:24 PM, Josh Berkus <josh(at)agliodbs(dot)com> wrote:
> Mat Caughron wrote:
>>
>> Regarding query size:
>>
>> In general, is there an approved way to get the parser to indicate
>> average length of query size?
>
> You could do this with CSV logging and length() fairly easily.
>
> --Josh
>
>