SELECT

    b.ekperif, s.short_description, s.imagesXrwma

FROM

    (SELECT

        ps.synolo,

            se.id_syndiasmosSeEnotita,

            se.id_syndiasmos,

            se.id_perifereiakiEnotita,

            se.id_eklogikhPerifereia

    FROM

        (SELECT

        SUM(ps.psifoiSyndiasmou) AS synolo,

            ps.id_syndiasmosSeEnotita

    FROM

        psifoiSyndiasmon AS ps

    WHERE

        ps.id_diexagogiEklogon = 3

    GROUP BY (ps.id_syndiasmosSeEnotita)) AS ps

    LEFT JOIN syndiasmosSeEnotita se ON ps.id_syndiasmosSeEnotita =

se.id_syndiasmosSeEnotita

    WHERE

        se.active = 1) AS a

        INNER JOIN

    (SELECT

        MAX(t.synolo) AS maxsynolo,

            t.id_eklogikhPerifereia AS ekperif

    FROM

        (SELECT

        ps.synolo,

            se.id_syndiasmosSeEnotita,

            se.id_syndiasmos,

            se.id_perifereiakiEnotita,

            se.id_eklogikhPerifereia

    FROM

        (SELECT

        SUM(ps.psifoiSyndiasmou) AS synolo,

            ps.id_syndiasmosSeEnotita

    FROM

        psifoiSyndiasmon AS ps

    WHERE

        ps.id_diexagogiEklogon = 3

    GROUP BY (ps.id_syndiasmosSeEnotita)) AS ps

    LEFT JOIN syndiasmosSeEnotita se ON ps.id_syndiasmosSeEnotita =

se.id_syndiasmosSeEnotita

    WHERE

        se.active = 1) AS t

    GROUP BY t.id_eklogikhPerifereia) AS b ON a.id_eklogikhPerifereia =

b.ekperif

        LEFT JOIN

    syndiasmos s ON a.id_syndiasmos = s.id_syndiasmos

WHERE

    a.synolo = b.maxsynolo;

140205 15:58:42 Percona XtraDB (http://www.percona.com) 5.5.35-MariaDB-33.0 started; log sequence number 151241109

140205 15:58:42 [Note] Event Scheduler: Loaded 0 events

140205 15:58:42 [Note] /usr/sbin/mysqld: ready for connections.

Version: '5.5.35-MariaDB-log'  socket: '/var/run/mysqld/mysqld.sock'  port: 0  Source distribution

140205 17:24:25 [ERROR] mysqld got signal 11 ;

This could be because you hit a bug. It is also possible that this binary

or one of the libraries it was linked against is corrupt, improperly built,

or misconfigured. This error can also be caused by malfunctioning hardware.

To report this bug, see http://kb.askmonty.org/en/reporting-bugs

We will try our best to scrape up some info that will hopefully help

diagnose the problem, but since we have already crashed, 

something is definitely wrong and this may fail.

Server version: 5.5.35-MariaDB-log

key_buffer_size=25165824

read_buffer_size=131072

max_used_connections=1

max_threads=52

thread_count=1

It is possible that mysqld could use up to 

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 138638 K  bytes of memory

Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x0x7fb8acac1000

Attempting backtrace. You can use the following information to find out

where mysqld died. If you see no messages after this, something went

terribly wrong...

stack_bottom = 0x7fb8c88afed8 thread_stack 0x48000

/usr/sbin/mysqld(my_print_stacktrace+0x26)[0x9ca0d6]

/usr/sbin/mysqld(handle_fatal_signal+0x398)[0x69a458]

/lib64/libpthread.so.0(+0xfbb0)[0x7fb8c9cc1bb0]

/usr/sbin/mysqld(_ZN10Item_field10fix_fieldsEP3THDPP4Item+0x19e)[0x6b416e]

/usr/sbin/mysqld(_ZN9Item_func10fix_fieldsEP3THDPP4Item+0x180)[0x6dddc0]

/usr/sbin/mysqld(_Z11setup_condsP3THDP10TABLE_LISTR4ListIS1_EPP4Item+0x1e6)[0x550fa6]

/usr/sbin/mysqld(_ZN4JOIN7prepareEPPP4ItemP10TABLE_LISTjS1_jP8st_orderbS7_S1_S7_P13st_select_lexP18st_select_lex_unit+0x394)[0x5bf8f4]

/usr/sbin/mysqld(_ZN18st_select_lex_unit7prepareEP3THDP13select_resultm+0x95d)[0x5feced]

/usr/sbin/mysqld(_Z21mysql_derived_prepareP3THDP3LEXP10TABLE_LIST+0x235)[0x56dc45]

/usr/sbin/mysqld(_Z27mysql_handle_single_derivedP3LEXP10TABLE_LISTj+0xec)[0x56e92c]

/usr/sbin/mysqld(_ZN13st_select_lex14handle_derivedEP3LEXj+0x3e)[0x580bce]

/usr/sbin/mysqld(_ZN4JOIN7prepareEPPP4ItemP10TABLE_LISTjS1_jP8st_orderbS7_S1_S7_P13st_select_lexP18st_select_lex_unit+0xea)[0x5bf64a]

/usr/sbin/mysqld(_Z12mysql_selectP3THDPPP4ItemP10TABLE_LISTjR4ListIS1_ES2_jP8st_orderSB_S2_SB_yP13select_resultP18st_select_lex_unitP13st_select_lex+0x8ec)[0x5c9d5c]

/usr/sbin/mysqld(_Z13handle_selectP3THDP3LEXP13select_resultm+0x2cc)[0x5cfabc]

/usr/sbin/mysqld[0x58388b]

/usr/sbin/mysqld(_Z21mysql_execute_commandP3THD+0x4a02)[0x58d272]

/usr/sbin/mysqld(_Z11mysql_parseP3THDPcjP12Parser_state+0x119)[0x58f479]

/usr/sbin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0x135e)[0x59086e]

/usr/sbin/mysqld(_Z24do_handle_one_connectionP3THD+0x173)[0x62da93]

/usr/sbin/mysqld(handle_one_connection+0x4a)[0x62db6a]

/lib64/libpthread.so.0(+0x7fda)[0x7fb8c9cb9fda]

/lib64/libc.so.6(clone+0x6d)[0x7fb8c8db99ad]

Trying to get some variables.

Some pointers may be invalid and cause the dump to abort.

Query (0x7fb8a1c14018): is an invalid pointer

Connection ID (thread ID): 13

Status: NOT_KILLED