Need Help Regarding design multivalue column field in elasticsearch from river

Phani_Nadiminti · October 6, 2014, 12:04pm

Hi All,

I have a scenario like, I need to build an index with four fields
(Generic Description,GenericId ,GroupNo, List of Catalogsids ).

Here is sample example of mysql table.

 Generic Description  GenericId        GroupNo

List of Catalogsids FrameKit
1 35 10,20,24,56,78,90,87 Pulley 3480 23 36 Bypass Pulley
4133 7 55

The fourth column in above table field contains multiple values for one
row. Now i want to create index using above mysql table via river
concept so that fourth column in the table sholud be represented as array
in elastic search i tried this concept but i am not getting a good way to
solve this.please help me in this.

Mapping i used:

PUT /temp

{
"mappings": {
"tempv1" : {
"properties" : {
"GenericDescription" : {"type" : "string"},
"GenericId" : {"type" : "string"},
"GroupNo" : {"type" : "string"},
"descriptionids" : {
"type" : "nested",
"properties" : {
"ListofDescriptionIDs" : {"type" : "integer"}
}
}
}
}
}
}

Thanks in advance.
phani srinivas

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jprante · October 6, 2014, 1:55pm

The mail is hard to read, the layout is scrambled.

For simple integer array, you do not need type "nested".

What is the SQL statement you tried for JDBC river? You have seen the
examples for bracket notation?

Jörg

On Mon, Oct 6, 2014 at 2:04 PM, phani.nadiminti@goktree.com wrote:

Hi All,

I have a scenario like, I need to build an index with four fields
(Generic Description,GenericId ,GroupNo, List of Catalogsids ).

Here is sample example of mysql table.
  Generic Description  GenericId        GroupNo
List of Catalogsids FrameKit
1 35 10,20,24,56,78,90,87 Pulley 3480 23 36 Bypass Pulley
4133 7 55

The fourth column in above table field contains multiple values for one
row. Now i want to create index using above mysql table via river
concept so that fourth column in the table sholud be represented as array
in Elasticsearch i tried this concept but i am not getting a good way to
solve this.please help me in this.

Mapping i used:
PUT /temp
{
"mappings": {
"tempv1" : {
"properties" : {
"GenericDescription" : {"type" : "string"},
"GenericId" : {"type" : "string"},
"GroupNo" : {"type" : "string"},
"descriptionids" : {
"type" : "nested",
"properties" : {
"ListofDescriptionIDs" : {"type" : "integer"}
}
}
}
}
}
}

Thanks in advance.
phani srinivas

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Phani_Nadiminti · October 7, 2014, 11:20am

Hi Jorg,

Thanks for quick reply. I tried the bracket notation from the river

query itself .I tried the following query and got the result.

" SELECT GenericDescription,GenericId,GroupNo,ListofDescriptionIDs AS

ListofDescriptionIDs[] FROM temp"

it worked for me for list of descriptionIDs it is created as array.

 {
        "_index": "test",
        "_type": "testv1",
        "_id": "uYTwn2iBSKGBPt0Auz834w",
        "_score": 1,
        "_source": {
           "GenericDescription": "test",
           "GenericId": "1",
           "GroupNo": "35",
           "ListofDescriptionIDs": [
              "10",
              "20",
              "61",
              "71",
              "73",
              "74",
              "77",
              "110",
              "116"
           ]
        }
     },

   the mapping directly created by river itself in es server. the type

for ListofDescriptionIDs created as "string".but it is taking data as
arrays from query. is this "string " is correct for the
ListofDescriptionIDs field. eventhough we declared as string how ES
consider as array for this field?

Thanks,
phani.

On Monday, October 6, 2014 7:25:26 PM UTC+5:30, Jörg Prante wrote:

The mail is hard to read, the layout is scrambled.

For simple integer array, you do not need type "nested".

What is the SQL statement you tried for JDBC river? You have seen the
examples for bracket notation?

Jörg

On Mon, Oct 6, 2014 at 2:04 PM, <phani.n...@goktree.com <javascript:>>
wrote:
Hi All,

I have a scenario like, I need to build an index with four fields
(Generic Description,GenericId ,GroupNo, List of Catalogsids ).

Here is sample example of mysql table.
  Generic Description  GenericId        GroupNo     
List of Catalogsids FrameKit
1 35 10,20,24,56,78,90,87 Pulley 3480 23 36 Bypass Pulley

4133 7 55

The fourth column in above table field contains multiple values for one
row. Now i want to create index using above mysql table via river
concept so that fourth column in the table sholud be represented as array
in Elasticsearch i tried this concept but i am not getting a good way to
solve this.please help me in this.

Mapping i used:
PUT /temp
{
"mappings": {
"tempv1" : {
"properties" : {
"GenericDescription" : {"type" : "string"},
"GenericId" : {"type" : "string"},
"GroupNo" : {"type" : "string"},
"descriptionids" : {
"type" : "nested",
"properties" : {
"ListofDescriptionIDs" : {"type" : "integer"}
}
}
}
}
}
}

Thanks in advance.
phani srinivas

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jprante · October 7, 2014, 11:35am

Is the database field for "ListofDescriptionIDs" a numeric field? This
would be interesting because the river should map JDBC integers to JSON
integers automatically.

You have the following options to enforce integer type:

create index before running the river, together with desired mappings
(preferred)
declare an index type mapping in the JDBC river definition with
type_mapping parameter

Jörg

On Tue, Oct 7, 2014 at 1:20 PM, phani.nadiminti@goktree.com wrote:

Hi Jorg,
Thanks for quick reply. I tried the bracket notation from the river
query itself .I tried the following query and got the result.
" SELECT GenericDescription,GenericId,GroupNo,ListofDescriptionIDs AS
ListofDescriptionIDs[] FROM temp"
it worked for me for list of descriptionIDs it is created as array.

 {
        "_index": "test",
        "_type": "testv1",
        "_id": "uYTwn2iBSKGBPt0Auz834w",
        "_score": 1,
        "_source": {
           "GenericDescription": "test",
           "GenericId": "1",
           "GroupNo": "35",
           "ListofDescriptionIDs": [
              "10",
              "20",
              "61",
              "71",
              "73",
              "74",
              "77",
              "110",
              "116"
           ]
        }
     },

   the mapping directly created by river itself in es server. the type
for ListofDescriptionIDs created as "string".but it is taking data as
arrays from query. is this "string " is correct for the
ListofDescriptionIDs field. eventhough we declared as string how ES
consider as array for this field?

Thanks,
phani.

On Monday, October 6, 2014 7:25:26 PM UTC+5:30, Jörg Prante wrote:
The mail is hard to read, the layout is scrambled.

For simple integer array, you do not need type "nested".

What is the SQL statement you tried for JDBC river? You have seen the
examples for bracket notation?

Jörg

On Mon, Oct 6, 2014 at 2:04 PM, phani.n...@goktree.com wrote:
Hi All,

I have a scenario like, I need to build an index with four fields
(Generic Description,GenericId ,GroupNo, List of Catalogsids ).

Here is sample example of mysql table.
  Generic Description  GenericId        GroupNo
List of Catalogsids FrameKit
1 35 10,20,24,56,78,90,87 Pulley 3480 23 36 Bypass Pulley

4133 7 55

The fourth column in above table field contains multiple values for one
row. Now i want to create index using above mysql table via river
concept so that fourth column in the table sholud be represented as
array in Elasticsearch i tried this concept but i am not getting a good
way to solve this.please help me in this.

Mapping i used:
PUT /temp
{
"mappings": {
"tempv1" : {
"properties" : {
"GenericDescription" : {"type" : "string"},
"GenericId" : {"type" : "string"},
"GroupNo" : {"type" : "string"},
"descriptionids" : {
"type" : "nested",
"properties" : {
"ListofDescriptionIDs" : {"type" : "integer"}
}
}
}
}
}
}

Thanks in advance.
phani srinivas

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Phani_Nadiminti · October 7, 2014, 12:10pm

Hi Jorg,

Thanks for the reply.The list of DescriptionIds is a string field it
contains data " 10,20,24,56,78,90,87" as a string in database table for one
record.

The following is the mapping information for the above descriptionIds in
elasticsearch.

 {
  "temp_new": {
  "mappings": {
     "tempv1new": {
        "properties": {
           "GenericDescription": {
              "type": "string"
           },
           "GenericId": {
              "type": "string"
           },
           "GroupNo": {
              "type": "string"
           },
           "ListofDescriptionIDs": {
              "type": "string"
           }
        }
     }
  }

}
}

            If listofDescriptionIds is a string please post me what are

our alternatives. if I create index like this(as said before ==> array
mapping) will it be searchable field.
Thanks,

phani

On Tuesday, October 7, 2014 5:05:58 PM UTC+5:30, Jörg Prante wrote:

Is the database field for "ListofDescriptionIDs" a numeric field? This
would be interesting because the river should map JDBC integers to JSON
integers automatically.

You have the following options to enforce integer type:

create index before running the river, together with desired mappings
(preferred)

declare an index type mapping in the JDBC river definition with
type_mapping parameter

Jörg

On Tue, Oct 7, 2014 at 1:20 PM, <phani.n...@goktree.com <javascript:>>
wrote:
Hi Jorg,
Thanks for quick reply. I tried the bracket notation from the river 
query itself .I tried the following query and got the result.
" SELECT GenericDescription,GenericId,GroupNo,ListofDescriptionIDs AS 
ListofDescriptionIDs[] FROM temp"
it worked for me for list of descriptionIDs it is created as array.

 {
        "_index": "test",
        "_type": "testv1",
        "_id": "uYTwn2iBSKGBPt0Auz834w",
        "_score": 1,
        "_source": {
           "GenericDescription": "test",
           "GenericId": "1",
           "GroupNo": "35",
           "ListofDescriptionIDs": [
              "10",
              "20",
              "61",
              "71",
              "73",
              "74",
              "77",
              "110",
              "116"
           ]
        }
     },

   the mapping directly created by river itself in es server. the 
type for ListofDescriptionIDs created as "string".but it is taking data as
arrays from query. is this "string " is correct for the
ListofDescriptionIDs field. eventhough we declared as string how ES
consider as array for this field?

Thanks,
phani.

On Monday, October 6, 2014 7:25:26 PM UTC+5:30, Jörg Prante wrote:
The mail is hard to read, the layout is scrambled.

For simple integer array, you do not need type "nested".

What is the SQL statement you tried for JDBC river? You have seen the
examples for bracket notation?

Jörg

On Mon, Oct 6, 2014 at 2:04 PM, phani.n...@goktree.com wrote:
Hi All,

I have a scenario like, I need to build an index with four fields
(Generic Description,GenericId ,GroupNo, List of Catalogsids ).

Here is sample example of mysql table.
  Generic Description  GenericId        GroupNo     
List of Catalogsids FrameKit
1 35 10,20,24,56,78,90,87 Pulley 3480 23 36 Bypass Pulley

4133 7 55

The fourth column in above table field contains multiple values for one
row. Now i want to create index using above mysql table via river
concept so that fourth column in the table sholud be represented as
array in Elasticsearch i tried this concept but i am not getting a good
way to solve this.please help me in this.

Mapping i used:
PUT /temp
{
"mappings": {
"tempv1" : {
"properties" : {
"GenericDescription" : {"type" : "string"},
"GenericId" : {"type" : "string"},
"GroupNo" : {"type" : "string"},
"descriptionids" : {
"type" : "nested",
"properties" : {
"ListofDescriptionIDs" : {"type" : "integer"}
}
}
}
}
}
}

Thanks in advance.
phani srinivas

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jprante · October 7, 2014, 12:27pm

Yes, in the mapping, the JDBC river automatically sets field type "string".
This is because the bracket notation mode does not examine the exploded
values for types like integer but simply assumes "string". "string" is ok
for search.

If you want numeric values with type "integer" you have to define the
mapping for field "ListofDescriptionIDs" manually before the river
auto-creates it. ES will then coerce the values into "integer".

Jörg

On Tue, Oct 7, 2014 at 2:10 PM, phani.nadiminti@goktree.com wrote:

Hi Jorg,

Thanks for the reply.The list of DescriptionIds is a string field it
contains data " 10,20,24,56,78,90,87" as a string in database table for one
record.

The following is the mapping information for the above descriptionIds
in elasticsearch.
 {
  "temp_new": {
  "mappings": {
     "tempv1new": {
        "properties": {
           "GenericDescription": {
              "type": "string"
           },
           "GenericId": {
              "type": "string"
           },
           "GroupNo": {
              "type": "string"
           },
           "ListofDescriptionIDs": {
              "type": "string"
           }
        }
     }
  }
}
}
            If listofDescriptionIds is a string please post me what
are our alternatives. if I create index like this(as said before ==> array
mapping) will it be searchable field.
Thanks,

phani

On Tuesday, October 7, 2014 5:05:58 PM UTC+5:30, Jörg Prante wrote:
Is the database field for "ListofDescriptionIDs" a numeric field? This
would be interesting because the river should map JDBC integers to JSON
integers automatically.

You have the following options to enforce integer type:

create index before running the river, together with desired mappings
(preferred)

declare an index type mapping in the JDBC river definition with
type_mapping parameter

Jörg

On Tue, Oct 7, 2014 at 1:20 PM, phani.n...@goktree.com wrote:
Hi Jorg,
Thanks for quick reply. I tried the bracket notation from the river
query itself .I tried the following query and got the result.
" SELECT GenericDescription,GenericId,GroupNo,ListofDescriptionIDs
AS ListofDescriptionIDs[] FROM temp"
it worked for me for list of descriptionIDs it is created as array.

 {
        "_index": "test",
        "_type": "testv1",
        "_id": "uYTwn2iBSKGBPt0Auz834w",
        "_score": 1,
        "_source": {
           "GenericDescription": "test",
           "GenericId": "1",
           "GroupNo": "35",
           "ListofDescriptionIDs": [
              "10",
              "20",
              "61",
              "71",
              "73",
              "74",
              "77",
              "110",
              "116"
           ]
        }
     },

   the mapping directly created by river itself in es server. the
type for ListofDescriptionIDs created as "string".but it is taking data as
arrays from query. is this "string " is correct for the
ListofDescriptionIDs field. eventhough we declared as string how ES
consider as array for this field?

Thanks,
phani.

On Monday, October 6, 2014 7:25:26 PM UTC+5:30, Jörg Prante wrote:
The mail is hard to read, the layout is scrambled.

For simple integer array, you do not need type "nested".

What is the SQL statement you tried for JDBC river? You have seen the
examples for bracket notation?

Jörg

On Mon, Oct 6, 2014 at 2:04 PM, phani.n...@goktree.com wrote:
Hi All,

I have a scenario like, I need to build an index with four fields
(Generic Description,GenericId ,GroupNo, List of Catalogsids ).

Here is sample example of mysql table.
  Generic Description  GenericId        GroupNo
List of Catalogsids FrameKit
1 35 10,20,24,56,78,90,87 Pulley 3480 23 36 Bypass Pulley

4133 7 55

The fourth column in above table field contains multiple values for
one row. Now i want to create index using above mysql table via river
concept so that fourth column in the table sholud be represented as
array in Elasticsearch i tried this concept but i am not getting a good
way to solve this.please help me in this.

Mapping i used:
PUT /temp
{
"mappings": {
"tempv1" : {
"properties" : {
"GenericDescription" : {"type" : "string"},
"GenericId" : {"type" : "string"},
"GroupNo" : {"type" : "string"},
"descriptionids" : {
"type" : "nested",
"properties" : {
"ListofDescriptionIDs" : {"type" : "integer"}
}
}
}
}
}
}

Thanks in advance.
phani srinivas

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Phani_Nadiminti · October 8, 2014, 3:09pm

Hi Jorg,

I believe that there is difference between normal string mapping and
dynamic array mapping using bracket notation in Elasticsearch . If we do
normal string type for "ListofDescriptionIds" in Elasticsearch where i can
find exact difference in searching data in dynamic array and normal string
field in Elasticsearch.

Dynamic array of type string in elasticsearch.
"ListofDescriptionIDs": [
"10",
"20",
"61",
"71",
"73",
"74",
"77",
"110",
"116"
]
Normal string notation:

"ListofDescriptionIDs": "10,20,61,71,73,74,77,110,116"

Thanks
phani

On Tuesday, October 7, 2014 5:58:02 PM UTC+5:30, Jörg Prante wrote:

Yes, in the mapping, the JDBC river automatically sets field type
"string". This is because the bracket notation mode does not examine the
exploded values for types like integer but simply assumes "string".
"string" is ok for search.

If you want numeric values with type "integer" you have to define the
mapping for field "ListofDescriptionIDs" manually before the river
auto-creates it. ES will then coerce the values into "integer".

Jörg

On Tue, Oct 7, 2014 at 2:10 PM, <phani.n...@goktree.com <javascript:>>
wrote:
Hi Jorg,

Thanks for the reply.The list of DescriptionIds is a string field it
contains data " 10,20,24,56,78,90,87" as a string in database table for one
record.

The following is the mapping information for the above descriptionIds
in elasticsearch.
 {
  "temp_new": {
  "mappings": {
     "tempv1new": {
        "properties": {
           "GenericDescription": {
              "type": "string"
           },
           "GenericId": {
              "type": "string"
           },
           "GroupNo": {
              "type": "string"
           },
           "ListofDescriptionIDs": {
              "type": "string"
           }
        }
     }
  }
}
}
            If listofDescriptionIds is a string please post me what 
are our alternatives. if I create index like this(as said before ==> array
mapping) will it be searchable field.
Thanks,

phani

On Tuesday, October 7, 2014 5:05:58 PM UTC+5:30, Jörg Prante wrote:
Is the database field for "ListofDescriptionIDs" a numeric field? This
would be interesting because the river should map JDBC integers to JSON
integers automatically.

You have the following options to enforce integer type:

create index before running the river, together with desired mappings
(preferred)

declare an index type mapping in the JDBC river definition with
type_mapping parameter

Jörg

On Tue, Oct 7, 2014 at 1:20 PM, phani.n...@goktree.com wrote:
Hi Jorg,
Thanks for quick reply. I tried the bracket notation from the river 
query itself .I tried the following query and got the result.
" SELECT GenericDescription,GenericId,GroupNo,ListofDescriptionIDs 
AS ListofDescriptionIDs[] FROM temp"
it worked for me for list of descriptionIDs it is created as array.

 {
        "_index": "test",
        "_type": "testv1",
        "_id": "uYTwn2iBSKGBPt0Auz834w",
        "_score": 1,
        "_source": {
           "GenericDescription": "test",
           "GenericId": "1",
           "GroupNo": "35",
           "ListofDescriptionIDs": [
              "10",
              "20",
              "61",
              "71",
              "73",
              "74",
              "77",
              "110",
              "116"
           ]
        }
     },

   the mapping directly created by river itself in es server. the 
type for ListofDescriptionIDs created as "string".but it is taking data as
arrays from query. is this "string " is correct for the
ListofDescriptionIDs field. eventhough we declared as string how ES
consider as array for this field?

Thanks,
phani.

On Monday, October 6, 2014 7:25:26 PM UTC+5:30, Jörg Prante wrote:
The mail is hard to read, the layout is scrambled.

For simple integer array, you do not need type "nested".

What is the SQL statement you tried for JDBC river? You have seen the
examples for bracket notation?

Jörg

On Mon, Oct 6, 2014 at 2:04 PM, phani.n...@goktree.com wrote:
Hi All,

I have a scenario like, I need to build an index with four fields
(Generic Description,GenericId ,GroupNo, List of Catalogsids ).

Here is sample example of mysql table.
  Generic Description  GenericId        GroupNo     
List of Catalogsids FrameKit
1 35 10,20,24,56,78,90,87 Pulley 3480 23 36 Bypass Pulley

4133 7 55

The fourth column in above table field contains multiple values for
one row. Now i want to create index using above mysql table via river
concept so that fourth column in the table sholud be represented as
array in Elasticsearch i tried this concept but i am not getting a good
way to solve this.please help me in this.

Mapping i used:
PUT /temp
{
"mappings": {
"tempv1" : {
"properties" : {
"GenericDescription" : {"type" : "string"},
"GenericId" : {"type" : "string"},
"GroupNo" : {"type" : "string"},
"descriptionids" : {
"type" : "nested",
"properties" : {
"ListofDescriptionIDs" : {"type" : "integer"}
}
}
}
}
}
}

Thanks in advance.
phani srinivas

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