mysqlbinlog Ver 3.3 for Linux at x86_64 from MariaDB-client.x86_64 5.5.40-1.el6 @mariadb
Following on from MDEV-7268
mysqlbinlog --start-position 30748070 mysql-bin.046557 | more
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BEGIN
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/*!*/;
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# at 30748141
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# at 30748202
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# at 30748274
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#141204 10:12:43 server id 1 end_log_pos 30748202 Table_map: `weather`.`lightning` mapped to number 177647
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#141204 10:12:43 server id 1 end_log_pos 30748274 Table_map: `weather`.`_lightning_new` mapped to number 177646
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#141204 10:12:43 server id 1 end_log_pos 30748356 Delete_rows: table id 177647 flags: STMT_END_F
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BINLOG '
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65h/VBMBAAAAPQAAACou1QEAAO+1AgAAAAEAB3dlYXRoZXIACWxpZ2h0bmluZwAHAw8MAAAADwQK
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AAoAYA==
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65h/VBMBAAAASAAAAHIu1QEAAO61AgAAAAEAB3dlYXRoZXIADl9saWdodG5pbmdfbmV3AAcDDwz2
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9vYPCgoACgcKBwUBCgBg
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65h/VBkBAAAAUgAAAMQu1QEAAO+1AgAAAAEAB/+AG4GOBAVHUEFUU5OG1tNFEgAAIC0zMy42MzA3
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NDc5IDE1Mi44MzIwNjk3ICAtNDEuMgJHUw==
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'/*!*/;
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# at 30748356
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#141204 10:12:43 server id 1 end_log_pos 30748383 Xid = 12786901894
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COMMIT/*!*/;
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decoded version
mysqlbinlog --start-position 30748070 --verbose --base64-output=decode-rows mysql-bin.046557 | more
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BEGIN
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/*!*/;
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# at 30748141
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# at 30748202
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# at 30748274
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#141204 10:12:43 server id 1 end_log_pos 30748202 Table_map: `weather`.`lightning` mapped to number 177647
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#141204 10:12:43 server id 1 end_log_pos 30748274 Table_map: `weather`.`_lightning_new` mapped to number 177646
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#141204 10:12:43 server id 1 end_log_pos 30748356 Delete_rows: table id 177647 flags: STMT_END_F
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### DELETE FROM `weather`.`lightning`
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### WHERE
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### @1=76448027
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### @2='GPATS'
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### @3=2009-11-16 09:51:23
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### @4=!! Don't know how to handle column type=0 meta=0 (0000)# at 30748356
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#141204 10:12:43 server id 1 end_log_pos 30748383 Xid = 12786901894
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COMMIT/*!*/;
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from upstream:
mysqlbinlog did not properly decode DECIMAL ( http://dev.mysql.com/doc/refman/5.6/en/fixed-point-types.html ) values in a row-based binary log. This could cause invalid values to be printed out for DECIMAL columns. (Bug #17544169)
- blocks
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MDEV-7628
Row-based replication of old DECIMAL to new DECIMAL
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Stalled
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Bug
While the parent issue
MDEV-7268is still full of mysteries, this one is quite straightforward.If a server has a table with a column of type DECIMAL (as opposed to NEWDECIMAL), the described effect happens while trying to read its row-based event.
Please note it's not an operational error; doesn't matter how many mysql_upgrade's and ALTER's a table has undergone, the DECIMAL type remains intact. A table should be re-created from scratch (not via LIKE, but with the actual CREATE TABLE statement) to get rid of it.