Do Identical UPDATE Statements Trigger MySQL Binlog Writes? A Practical Test

This article experimentally investigates whether MySQL re‑executes UPDATE statements that set a column to its current value, comparing behavior under ROW and STATEMENT binlog formats and revealing how InnoDB handles redundant updates.

BinlogInnoDBSTATEMENT format

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Do Identical UPDATE Statements Trigger MySQL Binlog Writes? A Practical Test