So, I'm probably blanking on something, but I'm just trying to create a bar chart for a single value. So:
index=hpov eph " error " AND (tag="EPH_SVR") | chart count
But for some reason the bar graph won't appear. The reason I'm doing this is that I then have a larger search which appends columns, and for some reason, the first value (error count) won't appear as a bar and instead appears as the x-axis.