How to use Flux(v6.9.0) to filter through fuzzy(Imprecise) queries(regular expression)? #604
Description
Proposal:
Filter fuzzy(Imprecise) queries by tag or field.
Current behavior:
Finding that there is no imprecise filtering query method or regular expression filtering method, I tried using custom but he doesn't work as expected.
Flux flux = Flux
.from("basic")
.range(Instant.now(), Instant.now())
.filter(Restrictions.and(
Restrictions.measurement().equal("api_log"),
Restrictions.tag("org_id").equal("EDUCLOUD"),
Restrictions.tag("title").custom("/account/", "=~"))
.pivot(List.of("_time"), List.of("_field"), "_value")
.group()
.sort(List.of("_time"), true)
.limit(10, (0 - 1) * 10);
anticipate:
from(bucket:"basic")
|> range(start:2023-07-14T15:59:59.000000000Z, stop:2023-07-14T15:59:59.000000000Z)
|> filter(fn: (r) => (r["_measurement"] == "api_log" and r["orgId"] == "EDUCLOUD" and r["title"] =~ /account/))
|> pivot(rowKey:["_time"], columnKey:["_field"], valueColumn:"_value")
|> group()
|> sort(columns:["_time"], desc:true)
|> limit(n:10, offset:0)
actual:
from(bucket:"basic")
|> range(start:2023-07-14T15:59:59.000000000Z, stop:2023-07-14T15:59:59.000000000Z)
|> filter(fn: (r) => (r["_measurement"] == "api_log" and r["orgId"] == "EDUCLOUD" and r["title"] =~ "/account/"))
|> pivot(rowKey:["_time"], columnKey:["_field"], valueColumn:"_value")
|> group()
|> sort(columns:["_time"], desc:true)
|> limit(n:10, offset:0)
error:
com.influxdb.exceptions.InternalServerErrorException: HTTP status code: 500; Message: type error 3:88-3:109: string != regexp
Desired behavior:
Imprecise filter query method or regular expression filter method, custom filter regular expression is normal
Alternatives considered:
Restrictions.custom() In the tank regular expression
Use case:
Regular expressions (regular expressions) are very powerful when matching patterns in large data collections, and they can effectively filter the amount of data.