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caa35f8e25
(This commit is for 10.3 and upper branches)
In case of a pattern of non-STMT_END-marked Rows-log-event (A) followed by
a STMT_END marked one (B) mysqlbinlog mixes up the base64 encoded rows events
with their pseudo sql representation produced by the verbose option:
BINLOG '
base64 encoded data for A
### verbose section for A
base64 encoded data for B
### verbose section for B
'/*!*/;
In effect the produced BINLOG '...' query is not valid and is rejected with the error.
Examples of this way malformed BINLOG could have been found in binlog_row_annotate.result
that gets corrected with the patch.
The issue is fixed with introduction an auxiliary IO_CACHE to hold on the verbose
comments until the terminal STMT_END event is found. The new cache is emptied
out after two pre-existing ones are done at that time.
The correctly produced output now for the above case is as the following:
BINLOG '
base64 encoded data for A
base64 encoded data for B
'/*!*/;
### verbose section for A
### verbose section for B
Thanks to Alexey Midenkov for the problem recognition and attempt to tackle,
and to Venkatesh Duggirala who produced a patch for the upstream whose
idea is exploited here, as well as to MDEV-23077 reporter LukeXwang who
also contributed a piece of a patch aiming at this issue.
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| .. | ||
| archive | ||
| binlog | ||
| binlog_encryption | ||
| compat | ||
| csv | ||
| encryption | ||
| engines | ||
| federated | ||
| funcs_1 | ||
| funcs_2 | ||
| galera | ||
| galera_3nodes | ||
| gcol | ||
| handler | ||
| heap | ||
| innodb | ||
| innodb_fts | ||
| innodb_gis | ||
| innodb_zip | ||
| jp | ||
| json | ||
| large_tests | ||
| maria | ||
| mariabackup | ||
| mtr/t | ||
| mtr2 | ||
| multi_source | ||
| optimizer_unfixed_bugs | ||
| parts | ||
| perfschema | ||
| perfschema_stress | ||
| plugins | ||
| roles | ||
| rpl | ||
| sql_sequence | ||
| storage_engine | ||
| stress | ||
| sys_vars | ||
| unit | ||
| vcol | ||
| versioning | ||
| wsrep | ||