wangzihuacool

Fix: Convert column value in binlog events to bytes instead of utf8 encoded unicode

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Related issue: #1157 #1112 #532 # Description: This PR converts character of the column data to bytes , and modifies applier connection charset from utf8mb4 to latin1, to aviod charset...

gh-ost fails to appply binlog event for latin1 character set with Error 1366

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We have a table with latin1 character set. We insert a row with multibyte data into the table using latin1 connection, while gh-ost runs.Then gh-ost fails with Error 1366 Incorrect...

gh-ost may lose data when performing DDL on mysql with semi-sync replication enabled

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We encountered a case of the gh-ost losing data. When perform DDL on a table in mysql with semi-sync replication enabled, we lost the max value which is inserted into...

analyze table before cutover

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Related issue: #1418 Description: analyze ghost table before cutover to avoid table statistics not timely updated.

I encountered an extreme case last week. After alter table using gh-ost, the table statistics was not updated until half an hour later, causing a lot of slow queries. The...