Result Set Header Packet MySQL

From server to client after command, if no error and result set -- that is, if the command was a query which returned a result set.

The Result Set Header Packet is the first of several, possibly many, packets that the server sends for result sets. The order of packets for a result set is:

Result Set Header Packet

The "extra" field is optional and never appears for ordinary result sets.

Alternative terms: a Result Set Packet is also called "a result packet for a command returning rows" or "a field description packet".

Result Set Header Packet

In the example, we se what the packet would contain after "SELECT * FROM t7" if table t7 has 3 columns.


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