JSON.NUMMULTBY - Amazon MemoryDB

JSON.NUMMULTBY

Multiply the number values at the path by a given number.

Syntax

JSON.NUMMULTBY <key> <path> <number>

  • key (required) – key of JSON document type

  • path (required) – a JSON path

  • number (required) – a number

Return

If the path is enhanced syntax:

  • Array of bulk Strings representing the resulting value at each path.

  • If a value is not a number, its corresponding return value is null.

  • WRONGTYPE error if the number cannot be parsed.

  • OVERFLOW error if the result is out of the range of 64-bit IEEE double.

  • NONEXISTENT if the document key does not exist.

If the path is restricted syntax:

  • Bulk String representing the resulting value.

  • If multiple values are selected, the command returns the result of the last updated value.

  • WRONGTYPE error if the value at the path is not a number.

  • WRONGTYPE error if the number cannot be parsed.

  • OVERFLOW error if the result is out of the range of 64-bit IEEE double.

  • NONEXISTENT if the document key does not exist.

Examples

Enhanced path syntax:

127.0.0.1:6379> JSON.SET k1 . '{"a":[], "b":[1], "c":[1,2], "d":[1,2,3]}'
OK
127.0.0.1:6379> JSON.NUMMULTBY k1 $.d[*] 2
"[2,4,6]"
127.0.0.1:6379> JSON.GET k1
"{\"a\":[],\"b\":[1],\"c\":[1,2],\"d\":[2,4,6]}"

127.0.0.1:6379> JSON.SET k1 $ '{"a":[], "b":[1], "c":[1,2], "d":[1,2,3]}'
OK
127.0.0.1:6379> JSON.NUMMULTBY k1 $.a[*] 2
"[]"
127.0.0.1:6379> JSON.NUMMULTBY k1 $.b[*] 2
"[2]"
127.0.0.1:6379> JSON.NUMMULTBY k1 $.c[*] 2
"[2,4]"
127.0.0.1:6379> JSON.NUMMULTBY k1 $.d[*] 2
"[2,4,6]"

127.0.0.1:6379> JSON.SET k2 $ '{"a":{}, "b":{"a":1}, "c":{"a":1, "b":2}, "d":{"a":1, "b":2, "c":3}}'
OK
127.0.0.1:6379> JSON.NUMMULTBY k2 $.a.* 2
"[]"
127.0.0.1:6379> JSON.NUMMULTBY k2 $.b.* 2
"[2]"
127.0.0.1:6379> JSON.NUMMULTBY k2 $.c.* 2
"[2,4]"
127.0.0.1:6379> JSON.NUMMULTBY k2 $.d.* 2
"[2,4,6]"

127.0.0.1:6379> JSON.SET k3 $ '{"a":{"a":"a"}, "b":{"a":"a", "b":1}, "c":{"a":"a", "b":"b"}, "d":{"a":1, "b":"b", "c":3}}'
OK
127.0.0.1:6379> JSON.NUMMULTBY k3 $.a.* 2
"[null]"
127.0.0.1:6379> JSON.NUMMULTBY k3 $.b.* 2
"[null,2]"
127.0.0.1:6379> JSON.NUMMULTBY k3 $.c.* 2
"[null,null]"
127.0.0.1:6379> JSON.NUMMULTBY k3 $.d.* 2
"[2,null,6]"

Restricted path syntax:

127.0.0.1:6379> JSON.SET k1 . '{"a":[], "b":[1], "c":[1,2], "d":[1,2,3]}'
OK
127.0.0.1:6379> JSON.NUMMULTBY k1 .d[1] 2
"4"
127.0.0.1:6379> JSON.GET k1
"{\"a\":[],\"b\":[1],\"c\":[1,2],\"d\":[1,4,3]}"

127.0.0.1:6379> JSON.SET k1 . '{"a":[], "b":[1], "c":[1,2], "d":[1,2,3]}'
OK
127.0.0.1:6379> JSON.NUMMULTBY k1 .a[*] 2
(error) NONEXISTENT JSON path does not exist
127.0.0.1:6379> JSON.NUMMULTBY k1 .b[*] 2
"2"
127.0.0.1:6379> JSON.GET k1
"{\"a\":[],\"b\":[2],\"c\":[1,2],\"d\":[1,2,3]}"
127.0.0.1:6379> JSON.NUMMULTBY k1 .c[*] 2
"4"
127.0.0.1:6379> JSON.GET k1
"{\"a\":[],\"b\":[2],\"c\":[2,4],\"d\":[1,2,3]}"
127.0.0.1:6379> JSON.NUMMULTBY k1 .d[*] 2
"6"
127.0.0.1:6379> JSON.GET k1
"{\"a\":[],\"b\":[2],\"c\":[2,4],\"d\":[2,4,6]}"

127.0.0.1:6379> JSON.SET k2 . '{"a":{}, "b":{"a":1}, "c":{"a":1, "b":2}, "d":{"a":1, "b":2, "c":3}}'
OK
127.0.0.1:6379> JSON.NUMMULTBY k2 .a.* 2
(error) NONEXISTENT JSON path does not exist
127.0.0.1:6379> JSON.NUMMULTBY k2 .b.* 2
"2"
127.0.0.1:6379> JSON.GET k2
"{\"a\":{},\"b\":{\"a\":2},\"c\":{\"a\":1,\"b\":2},\"d\":{\"a\":1,\"b\":2,\"c\":3}}"
127.0.0.1:6379> JSON.NUMMULTBY k2 .c.* 2
"4"
127.0.0.1:6379> JSON.GET k2
"{\"a\":{},\"b\":{\"a\":2},\"c\":{\"a\":2,\"b\":4},\"d\":{\"a\":1,\"b\":2,\"c\":3}}"
127.0.0.1:6379> JSON.NUMMULTBY k2 .d.* 2
"6"
127.0.0.1:6379> JSON.GET k2
"{\"a\":{},\"b\":{\"a\":2},\"c\":{\"a\":2,\"b\":4},\"d\":{\"a\":2,\"b\":4,\"c\":6}}"

127.0.0.1:6379> JSON.SET k3 . '{"a":{"a":"a"}, "b":{"a":"a", "b":1}, "c":{"a":"a", "b":"b"}, "d":{"a":1, "b":"b", "c":3}}'
OK
127.0.0.1:6379> JSON.NUMMULTBY k3 .a.* 2
(error) WRONGTYPE JSON element is not a number
127.0.0.1:6379> JSON.NUMMULTBY k3 .b.* 2
"2"
127.0.0.1:6379> JSON.GET k3
"{\"a\":{\"a\":\"a\"},\"b\":{\"a\":\"a\",\"b\":2},\"c\":{\"a\":\"a\",\"b\":\"b\"},\"d\":{\"a\":1,\"b\":\"b\",\"c\":3}}"
127.0.0.1:6379> JSON.NUMMULTBY k3 .c.* 2
(error) WRONGTYPE JSON element is not a number
127.0.0.1:6379> JSON.NUMMULTBY k3 .d.* 2
"6"
127.0.0.1:6379> JSON.GET k3
"{\"a\":{\"a\":\"a\"},\"b\":{\"a\":\"a\",\"b\":2},\"c\":{\"a\":\"a\",\"b\":\"b\"},\"d\":{\"a\":2,\"b\":\"b\",\"c\":6}}"