[9.0] MySQL._update returns rowcount

[chaen]

No description provided.

[fstagni]

For info, where would this be useful/needed?

[andresailer]

- NEW: MySQL._update returns rowcount
+ NEW: MySQL._update returns `rowCount` as an entry in the returned dictionary

Would also be good to update the docstring for this function.

[chaen]

For info, where would this be useful/needed?

Anywhere you want to know how many rows were updated. And I need it in an LHCbDIRAC MR

[chrisburr]

This is a hard thing to emulate in the DiracX compatibility layer.

[chaen]

This is a hard thing to emulate in the DiracX compatibility layer.

It anyway will probably be interesting to move to direct DB access for all this

[chaen]

In fact, looking at the low level mysql code, (and after at the DIRAC comments), the value I was after is already in res["Value"]...