Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Fixed
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10.0.2
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None
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Centos 6.4
Description
Steps to reproduce:
1. create a csv-file /tmp/test1.csv, with the following content:
test;bla
2. create a csv-file /tmp/test2.csv with the following content:
test2;blub
3. create a table:
CREATE TABLE `test_all` ( |
`a` char(10) DEFAULT NULL, |
`b` char(10) DEFAULT NULL |
) ENGINE=CONNECT DEFAULT CHARSET=latin1 `table_type`=CSV `file_name`='/tmp/test*.csv' `sep_char`=';' `compress`=0 `multiple`=1 |
4. Query the table: |
SELECT a FROM test_all; |
-> ERROR 2013 (HY000): Lost connection to MySQL server during query |
If you only use one file as source for your table, everything works as expected:
CREATE TABLE `test1` ( |
`a` char(10) DEFAULT NULL, |
`b` char(10) DEFAULT NULL |
) ENGINE=CONNECT DEFAULT CHARSET=latin1 `table_type`=CSV `file_name`='/tmp/test1.csv' `sep_char`=';' `compress`=0 `multiple`=0 |
SELECT a FROM test1; |
+------+ |
| a |
|
+------+ |
| test |
|
+------+ |
Excerpt from error log:
Server version: 10.0.2-MariaDB
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key_buffer_size=134217728
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read_buffer_size=131072
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max_used_connections=1
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max_threads=153
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thread_count=1
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It is possible that mysqld could use up to
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key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 466436 K bytes of memory
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Hope that's ok; if not, decrease some variables in the equation.
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|
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Thread pointer: 0x0x288d158
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Attempting backtrace. You can use the following information to find out
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where mysqld died. If you see no messages after this, something went
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terribly wrong...
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stack_bottom = 0x7fbb52d84d78 thread_stack 0x48000
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??:0(my_print_stacktrace)[0xad121e]
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??:0(handle_fatal_signal)[0x6db20b]
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??:0(??)[0x7fbb529b3500]
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|
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Trying to get some variables.
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Some pointers may be invalid and cause the dump to abort.
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Query (0x7fbb14004c40): is an invalid pointer
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Connection ID (thread ID): 1
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Status: NOT_KILLED
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|
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Optimizer switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=off,exists_to_in=off
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