InfluxQL regex operator =~ requires a space after it but other operators do not

[russorat]

Bug report

System info:
InfluxDB shell version: v1.3.6
Mac OS X 10.13

Steps to reproduce:

1. run a query with a regex such as SELECT mean("usage_idle") AS "mean_usage_idle" FROM "telegraf"."autogen"."cpu" WHERE "cpu"=~/cpu0/ and notice that it has a parse error
2. add a space after the regex operator SELECT mean("usage_idle") AS "mean_usage_idle" FROM "telegraf"."autogen"."cpu" WHERE "cpu"=~ /cpu0/ and notice it succeeds
3. run a query with an equals operator and notice that there is no space SELECT mean("usage_idle") AS "mean_usage_idle" FROM "telegraf"."autogen"."cpu" WHERE "cpu"='cpu0' which succeds

Expected behavior: InfluxQL should not require a space after the regex operator

Actual behavior: the query fails to parse unless there is a space following the regex operator

Additional info: none

[rye]

I think this was fixed by influxdata/influxql#4—should this issue be closed?

[cktang88]

Yeah I think this should be closed.