Avoid matching in a word in is_write_query()

[takotakot]

No description provided.

[JJJ]

@spacedmonkey just going through PRs. Any more thoughts on this one?

We really need to get unit tests setup and working. Wanna take that on, too?

[spacedmonkey]

I don’t want to merge this without unit test. I will add unit tests to ci in another pr

[JJJ]

@spacedmonkey understandable. I did just merge #100 which is going to conflict with this PR. Sorry about that.

[amitaymolko]

On master:
is_write_query("SELECT option_name, option_value FROM wp_options WHERE autoload = 'yes'");
returns true.
With this fix, it returns false

[JJJ]

@amitaymolko That's a good thing!

[amitaymolko]

@JJJ
Yeah, the fix is good, it reduces the load on the write servers.

[JJJ]

Merged to master. This is working fine for me, too.