build_query.js

const format = require('pg-format')

var filter = [
  {
    c: "id",
    o: "=",
    v: "1"
  },
  {
    c: "name",
    o: "like",
    v: "doasidn"
  }
]


var insertFinJobs = function( filter ) {
  var f = filter.map( i => { return `${i.c} ${i.o} '${i.v}'` } ).join(" AND ")
  return format('select * from jobs_finished where 1 = 1 %s', f ? `AND ${f}` : '' )
}



console.log( insertFinJobs(filter) )