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when we open the HEAP table for the first time since server restart, in hp_open(), we set a flag to propagate this info to the handler level which then writes a DELETE FROM this_heap_table to the binlog. It is not a perfect solution for the bug, because between the server start and the first open of the table, the slave still had old data in his table so a SELECT on the slave may show wrong content. But if there is a --init-file to populate the HEAP table on master as startup, then this is a safe fix (I'll put a note about init-file in the HEAP section of the manual). heap/hp_info.c: new info variable implicit_emptied heap/hp_open.c: If this is the first open of the HEAP table, it means it is empty, so we mark it. include/heap.h: new variables implicit_emptied (we need one in HEAPINFO for the hp_info() call). sql/ha_heap.cc: report info to upper level sql/handler.h: new info 'implicit_emptied' in the handler level; only HEAP uses it. sql/sql_base.cc: When a HEAP table is opened for the first time, write a DELETE FROM to the binlog, for replication and mysqlbinlog|mysql. Monty: I added the entry->file->implicit_emptied= 0;
47 lines
1.1 KiB
Text
47 lines
1.1 KiB
Text
# You must run this test with --manager.
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require_manager;
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# Don't know why, but using TCP/IP connections makes this test fail
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# with "Lost connection to MySQL server during query" when we
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# issue a query after the server restart.
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# Maybe this is something awkward in mysqltest or in the manager?
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# So we use sockets.
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connect (master,localhost,root,,test,0,master.sock);
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connect (slave,localhost,root,,test,0,slave.sock);
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connection master;
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reset master;
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drop table if exists t1;
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create table t1 (a int) type=HEAP;
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insert into t1 values(10);
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save_master_pos;
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show binlog events from 79;
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connection slave;
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reset slave;
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start slave;
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sync_with_master;
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show create table t1;
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select * from t1; # should be one row
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server_stop master;
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server_start master;
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connection master;
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select * from t1;
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# to check that DELETE is not written twice
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# (the LIMIT is to not use the query cache)
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select * from t1 limit 10;
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save_master_pos;
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show binlog events in 'master-bin.002' from 79;
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connection slave;
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sync_with_master;
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select * from t1; # should be empty
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# clean up
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connection master;
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drop table t1;
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save_master_pos;
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connection slave;
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sync_with_master;
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