I am seeing errors like this in the log file:

-- Error:
{ [error: column reference "4" is ambiguous]
  name: 'error',
  length: 100,
  severity: 'ERROR',
  code: '42702',
  detail: undefined,
  hint: undefined,
  position: '198',
  internalPosition: undefined,
  internalQuery: undefined,
  where: undefined,
  file: 'parse_relation.c',
  line: '487',
  routine: 'scanRTEForColumn' }
Trace
    at Object.module.exports.log (/home/bodega/bodega-server-production/server/lib/errors.js:166:17)
    at Object.module.exports.report (/home/bodega/bodega-server-production/server/lib/errors.js:187:20)
    at null.callback (/home/bodega/bodega-server-production/server/lib/db/stats.js:186:28)
    at Query.handleError (/home/bodega/bodega-server-production/server/node_modules/pg/lib/query.js:93:10)
    at null.<anonymous> (/home/bodega/bodega-server-production/server/node_modules/pg/lib/client.js:178:19)
    at EventEmitter.emit (events.js:95:17)
    at null.<anonymous> (/home/bodega/bodega-server-production/server/node_modules/pg/lib/connection.js:97:12)
    at Socket.EventEmitter.emit (events.js:95:17)
    at Socket.<anonymous> (_stream_readable.js:746:14)
    at Socket.EventEmitter.emit (events.js:92:17)
-- end --



Reproducible: Always