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MySQL Internals Manual


14.9.4.21 USER_VAR_EVENT

Binlog::USER_VAR_EVENT:
Payload
4                name_length
string[$len]     name
1                is_null
  if not is_null {
1                type
4                charset
4                value_length
string[$len]     value
    if more data {
1                flags
    }
  }
Fields
  • name_length (4) -- length of name

  • name (string.var_len) -- [len=$name_length] name

  • is_null (1) -- 1 if value is NULL, 0 otherwise

  • type (1) -- type of value

  • charset (4) -- character set of value

  • value_length (4) -- length of value

  • value (string.var_len) -- [len=$value_length] value

  • flags (1) -- flags of value

    Hex

    uservar Flags

    0x01

    UNSIGNED


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