Anton Kaliaev a6a06f820f
[pubsub/query] quote values using single quotes
This fixes the problem with base-16 encoded values which may start with
digits: 015AB.... In such cases, the parser recognizes them as numbers
but fails to parse because of the follow-up characters (AB).

```
failed to parse tm.events.type=Tx AND hash=136E18F7E4C348B780CF873A0BF43922E5BAFA63:
parse error near digit (line 1 symbol 31 - line 1 symbol 32):
  "6"
```

So, from now on we should quote any values. This seems to be the way
Postgresql has chosen.
2017-07-21 13:20:32 +03:00
..
2017-07-12 09:48:01 +03:00
2017-07-12 09:48:01 +03:00
2017-07-12 09:48:01 +03:00
2017-07-12 09:48:01 +03:00