Logstash "Duplicate field 'match'

Hi all
I am using following input in logstash conf file to checking matching of a field.

input {
elasticsearch {
hosts => ["http://localhost:9200/"]
index => "log*"
query => '{
		"query": { 
		      "bool" : {
		          "must" : {
		                "match": { "request.type": "1"},
		                "match": { "request.type": "2"}

		             },
				   "filter" : { 
                        "range" : {   "timestamp" : { "gte": "now-1d/d", "lte": "now-1d/d"}} 
				   }
		      }

		}, 
		"sort": [ "_doc" ] 
	}'
}
 exec { command => "/bin/true" interval => 864000 } 
}

but running it leading to following error in logstash and cannot be started:

Error: [500] {"error":{"root_cause":[{"type":"json_parse_exception","reason":"Duplicate field 'match'\n at [Source: org.elasticsearch.transport.netty4.ByteBufStreamInput@4770f542; line: 6, column: 26]"}],"type":"json_parse_exception","reason":"Duplicate field 'match'\n at [Source: org.elasticsearch.transport.netty4.ByteBufStreamInput@4770f542; line: 6, column: 26]"},"status":500}

actually i want to filter events that their request.type field value is 1 or 2.
any help will be so appreciated