INDEX builtin with input
I'm trying to build an INDEX from a json file which contains a list of flat objects.
If I use the construct
jq 'INDEX(.a + ":" + .b)' < data.json
I get what i want. But if I use
jq 'INDEX(input; .a + ":" + .b) data.json
then I get the error
jq: error (at data.json:<last-line>): break
The reason I need to use the second form is that I will then need to JOIN another input to the index of the first, and I don't see how to do that from STDIN.
Any ideas how I can get around this?
(Currently running jq-1.6 on MacOS 10.13.6)
Adding input (data.json):
[
{
"a": "a1",
"b": "b1",
"c": "c1",
"d": "d1"
},
{
"a": "a2",
"b": "b2",
"c": "c2",
"d": "d2"
},
{
"a": "a3",
"b": "b3",
"c": "c3",
"d": "d3"
}
]
And expected output
{
"a1:b1": {
"a": "a1",
"b": "b1",
"c": "c1",
"d": "d1"
},
"a2:b2": {
"a": "a2",
"b": "b2",
"c": "c2",
"d": "d2"
},
"a3:b3": {
"a": "a3",
"b": "b3",
"c": "c3",
"d": "d3"
}
}
jq
asked Nov 13 '18 at 8:44
tyketyke
234
add a comment |
I'm trying to build an INDEX from a json file which contains a list of flat objects.
If I use the construct
jq 'INDEX(.a + ":" + .b)' < data.json
I get what i want. But if I use
jq 'INDEX(input; .a + ":" + .b) data.json
then I get the error
jq: error (at data.json:<last-line>): break
The reason I need to use the second form is that I will then need to JOIN another input to the index of the first, and I don't see how to do that from STDIN.
Any ideas how I can get around this?
(Currently running jq-1.6 on MacOS 10.13.6)
Adding input (data.json):
[
{
"a": "a1",
"b": "b1",
"c": "c1",
"d": "d1"
},
{
"a": "a2",
"b": "b2",
"c": "c2",
"d": "d2"
},
{
"a": "a3",
"b": "b3",
"c": "c3",
"d": "d3"
}
]
And expected output
{
"a1:b1": {
"a": "a1",
"b": "b1",
"c": "c1",
"d": "d1"
},
"a2:b2": {
"a": "a2",
"b": "b2",
"c": "c2",
"d": "d2"
},
"a3:b3": {
"a": "a3",
"b": "b3",
"c": "c3",
"d": "d3"
}
}
jq
asked Nov 13 '18 at 8:44
tyketyke
234
Please add example input and output to your question.
– oguzismail
Nov 13 '18 at 8:46
1
@oguzismail : examples added
– tyke
Nov 13 '18 at 10:30
add a comment |
I'm trying to build an INDEX from a json file which contains a list of flat objects.
If I use the construct
jq 'INDEX(.a + ":" + .b)' < data.json
I get what i want. But if I use
jq 'INDEX(input; .a + ":" + .b) data.json
then I get the error
jq: error (at data.json:<last-line>): break
The reason I need to use the second form is that I will then need to JOIN another input to the index of the first, and I don't see how to do that from STDIN.
Any ideas how I can get around this?
(Currently running jq-1.6 on MacOS 10.13.6)
Adding input (data.json):
[
{
"a": "a1",
"b": "b1",
"c": "c1",
"d": "d1"
},
{
"a": "a2",
"b": "b2",
"c": "c2",
"d": "d2"
},
{
"a": "a3",
"b": "b3",
"c": "c3",
"d": "d3"
}
]
And expected output
{
"a1:b1": {
"a": "a1",
"b": "b1",
"c": "c1",
"d": "d1"
},
"a2:b2": {
"a": "a2",
"b": "b2",
"c": "c2",
"d": "d2"
},
"a3:b3": {
"a": "a3",
"b": "b3",
"c": "c3",
"d": "d3"
}
}
jq
asked Nov 13 '18 at 8:44
tyketyke
234
I'm trying to build an INDEX from a json file which contains a list of flat objects.
If I use the construct
jq 'INDEX(.a + ":" + .b)' < data.json
I get what i want. But if I use
jq 'INDEX(input; .a + ":" + .b) data.json
then I get the error
jq: error (at data.json:<last-line>): break
The reason I need to use the second form is that I will then need to JOIN another input to the index of the first, and I don't see how to do that from STDIN.
Any ideas how I can get around this?
(Currently running jq-1.6 on MacOS 10.13.6)
Adding input (data.json):
[
{
"a": "a1",
"b": "b1",
"c": "c1",
"d": "d1"
},
{
"a": "a2",
"b": "b2",
"c": "c2",
"d": "d2"
},
{
"a": "a3",
"b": "b3",
"c": "c3",
"d": "d3"
}
]
And expected output
{
"a1:b1": {
"a": "a1",
"b": "b1",
"c": "c1",
"d": "d1"
},
"a2:b2": {
"a": "a2",
"b": "b2",
"c": "c2",
"d": "d2"
},
"a3:b3": {
"a": "a3",
"b": "b3",
"c": "c3",
"d": "d3"
}
}
jq
jq
asked Nov 13 '18 at 8:44
tyketyke
234
asked Nov 13 '18 at 8:44
tyketyke
234
edited Nov 13 '18 at 10:16
tyke
asked Nov 13 '18 at 8:44
tyketyke
234
asked Nov 13 '18 at 8:44
tyketyke
234
asked Nov 13 '18 at 8:44
tyketyke
234
234
Please add example input and output to your question.
– oguzismail
Nov 13 '18 at 8:46
1
@oguzismail : examples added
– tyke
Nov 13 '18 at 10:30
add a comment |
Please add example input and output to your question.
– oguzismail
Nov 13 '18 at 8:46
1
@oguzismail : examples added
– tyke
Nov 13 '18 at 10:30
Please add example input and output to your question.
– oguzismail
Nov 13 '18 at 8:46
Please add example input and output to your question.
– oguzismail
Nov 13 '18 at 8:46
1
1
@oguzismail : examples added
– tyke
Nov 13 '18 at 10:30
@oguzismail : examples added
– tyke
Nov 13 '18 at 10:30
add a comment |
1 Answer
1
active
oldest
votes
The first argument of INDEX/2 should be a stream of the items to be indexed; here, . is exactly what we want:
INDEX(.; .a + ":" + .b)
answered Nov 13 '18 at 14:37
peakpeak
30.7k83957
You're right. That is EXACTLY what I want here. Many thanks.
– tyke
Nov 13 '18 at 15:57
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
The first argument of INDEX/2 should be a stream of the items to be indexed; here, . is exactly what we want:
INDEX(.; .a + ":" + .b)
answered Nov 13 '18 at 14:37
peakpeak
30.7k83957
You're right. That is EXACTLY what I want here. Many thanks.
– tyke
Nov 13 '18 at 15:57
add a comment |
The first argument of INDEX/2 should be a stream of the items to be indexed; here, . is exactly what we want:
INDEX(.; .a + ":" + .b)
answered Nov 13 '18 at 14:37
peakpeak
30.7k83957
You're right. That is EXACTLY what I want here. Many thanks.
– tyke
Nov 13 '18 at 15:57
add a comment |
The first argument of INDEX/2 should be a stream of the items to be indexed; here, . is exactly what we want:
INDEX(.; .a + ":" + .b)
answered Nov 13 '18 at 14:37
peakpeak
30.7k83957
The first argument of INDEX/2 should be a stream of the items to be indexed; here, . is exactly what we want:
INDEX(.; .a + ":" + .b)
answered Nov 13 '18 at 14:37
peakpeak
30.7k83957
answered Nov 13 '18 at 14:37
peakpeak
30.7k83957
answered Nov 13 '18 at 14:37
peakpeak
30.7k83957
answered Nov 13 '18 at 14:37
peakpeak
30.7k83957
30.7k83957
You're right. That is EXACTLY what I want here. Many thanks.
– tyke
Nov 13 '18 at 15:57
add a comment |
You're right. That is EXACTLY what I want here. Many thanks.
– tyke
Nov 13 '18 at 15:57
You're right. That is EXACTLY what I want here. Many thanks.
– tyke
Nov 13 '18 at 15:57
You're right. That is EXACTLY what I want here. Many thanks.
– tyke
Nov 13 '18 at 15:57
add a comment |
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Please add example input and output to your question.
– oguzismail
Nov 13 '18 at 8:46
1
@oguzismail : examples added
– tyke
Nov 13 '18 at 10:30