In syslog-ng, how can I type-hint a json field as an integer for use in a sql destination?











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I am trying to send a JSON-format source to a sql destination using syslog-ng. The source has some text fields, and some integer fields.



When I use the json-parser I'm able to individually address each key/value, but the json-parser converts all the fields to strings.



Because the sql destination doesn't allow for type hinting, how can I send a value from my json-parsed message as an integer?



I've tried using a rewrite like this, but it doesn't work:



rewrite r_dns {
set(
"flow_id",
value( "int64(${.json.flow_id})" )
);
};


Ideally I would like to do something like this, but the sql dest doesn't have such an option:



sql(
...
columns(flow_id BIGINT)
values(int64(${.json.flow_id}))
)









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    up vote
    0
    down vote

    favorite












    I am trying to send a JSON-format source to a sql destination using syslog-ng. The source has some text fields, and some integer fields.



    When I use the json-parser I'm able to individually address each key/value, but the json-parser converts all the fields to strings.



    Because the sql destination doesn't allow for type hinting, how can I send a value from my json-parsed message as an integer?



    I've tried using a rewrite like this, but it doesn't work:



    rewrite r_dns {
    set(
    "flow_id",
    value( "int64(${.json.flow_id})" )
    );
    };


    Ideally I would like to do something like this, but the sql dest doesn't have such an option:



    sql(
    ...
    columns(flow_id BIGINT)
    values(int64(${.json.flow_id}))
    )









    share|improve this question


























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I am trying to send a JSON-format source to a sql destination using syslog-ng. The source has some text fields, and some integer fields.



      When I use the json-parser I'm able to individually address each key/value, but the json-parser converts all the fields to strings.



      Because the sql destination doesn't allow for type hinting, how can I send a value from my json-parsed message as an integer?



      I've tried using a rewrite like this, but it doesn't work:



      rewrite r_dns {
      set(
      "flow_id",
      value( "int64(${.json.flow_id})" )
      );
      };


      Ideally I would like to do something like this, but the sql dest doesn't have such an option:



      sql(
      ...
      columns(flow_id BIGINT)
      values(int64(${.json.flow_id}))
      )









      share|improve this question















      I am trying to send a JSON-format source to a sql destination using syslog-ng. The source has some text fields, and some integer fields.



      When I use the json-parser I'm able to individually address each key/value, but the json-parser converts all the fields to strings.



      Because the sql destination doesn't allow for type hinting, how can I send a value from my json-parsed message as an integer?



      I've tried using a rewrite like this, but it doesn't work:



      rewrite r_dns {
      set(
      "flow_id",
      value( "int64(${.json.flow_id})" )
      );
      };


      Ideally I would like to do something like this, but the sql dest doesn't have such an option:



      sql(
      ...
      columns(flow_id BIGINT)
      values(int64(${.json.flow_id}))
      )






      syslog-ng






      share|improve this question















      share|improve this question













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      share|improve this question








      edited Nov 22 at 13:26

























      asked Nov 21 at 23:51









      wcal

      33




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