Compare two columns inside filter

Hello! Is it possible compare two columns inside filter?

I would like do something like that:

[...] filter: { column1: { greaterThanOrEqualTo: column2} } [..]

[jefbarn]

FWIW, I got around this problem by using the new makeAddPgTableConditionPlugin to add a new custom filter clause that included my comparison operation. Edit, here’s some code for reference:

import { makeAddPgTableConditionPlugin } from 'graphile-utils'
import Maybe from 'graphql/tsutils/Maybe'

export const CustomFilterPlugin = makeAddPgTableConditionPlugin(
  'graphql',
  'ncsr',
  'recurring',
  build => ({
    description: 'Filters the list to NCSRs that use recurring dates.',
    type: build.graphql.GraphQLBoolean
  }),
  (value, helpers, build) => {
    const { sql, sqlTableAlias } = helpers
    const recurrencePatternIdent = sql.identifier('recurrence_pattern')
    const startTimeIdent = sql.identifier('scheduled_start_time')
    const endTimeIdent = sql.identifier('requested_date_of_completion')

    const onceOrSameDay = sql.fragment`
      ${sqlTableAlias}.${recurrencePatternIdent} = 'Once' OR
      date(${sqlTableAlias}.${startTimeIdent}) = date(${sqlTableAlias}.${endTimeIdent})
    `
    if ((value as Maybe<boolean>) === true) {
      return sql.fragment`NOT (${onceOrSameDay})`
    } else if ((value as Maybe<boolean>) === false) {
      return onceOrSameDay
    } else {
      return null
    }
  }
)

[mattbretl]

Tentatively yes, though I would publish it as a separate package with a dependency on this plugin. For v2, I plan to move several features into separate plugins.