crash in variable bindings when retrying mysql query

[mariux]

@mylittlepony

2015-08-19 14:12:36 +0200 mxqd[2380]: WARNING: MySQL mysql_stmt_execute(): ERROR 2013 (HY000): Lost connection to MySQL server during query
2015-08-19 14:12:36 +0200 mxqd[2380]: ERROR: mx_mysql_statement_execute(): Resource temporarily unavailable
2015-08-19 14:12:36 +0200 mxqd[2380]: WARNING: mx_mysql_do_statement() failed: Resource temporarily unavailable
2015-08-19 14:12:36 +0200 mxqd[2380]: WARNING: MySQL mysql_stmt_bind_param(): ERROR 2036 (HY000): Using unsupported buffer type: 7427968  (parameter: 19)
2015-08-19 14:12:36 +0200 mxqd[2380]: EMERGENCY: MySQL mysql_stmt_bind_param(): ERROR 2036 (HY000): Using unsupported buffer type: 7427968  (parameter: 19)
2015-08-19 14:12:36 +0200 mxqd[2380]: ERROR: mx_mysql_statement_execute(): Protocol error
*** Error in `mxqd': double free or corruption (!prev): 0x0000000000715790 ***

[mariux]

@peanutbutterjellytime

2015-08-19 14:12:37 +0200 mxqd[33612]: WARNING: MySQL mysql_stmt_execute(): ERROR 2013 (HY000): Lost connection to MySQL server during query
2015-08-19 14:12:37 +0200 mxqd[33612]: ERROR: mx_mysql_statement_execute(): Resource temporarily unavailable
2015-08-19 14:12:37 +0200 mxqd[33612]: WARNING: mx_mysql_do_statement() failed: Resource temporarily unavailable
2015-08-19 14:12:37 +0200 mxqd[33612]: WARNING: MySQL mysql_stmt_bind_result(): ERROR 2036 (HY000): Using unsupported buffer type: 8  (parameter: 1)
2015-08-19 14:12:37 +0200 mxqd[33612]: EMERGENCY: MySQL mysql_stmt_bind_result(): ERROR 2036 (HY000): Using unsupported buffer type: 8  (parameter: 1)
2015-08-19 14:12:37 +0200 mxqd[33612]: ERROR: mx_mysql_statement_fetch(): Protocol error
*** Error in `mxqd': double free or corruption (!prev): 0x00000000006a1330 ***

[mariux]

bind parameters are freed in mysql_statement_close() which is wrong behaviour if doing retries after connection is lost during complex statements.

[mariux]

untested ;)

[mariux]

finally fixed in 193a3b4