How can I use an environment variable in a Postgres function?












3















Let's say I have a windows user environment variable SOME_STRING.



Is it possible to use its value in a PL/pgSQL function?



If not, do I need to use an untrusted language (like PL/pythonu) or can I use a trusted one?



I am on PG 9.2










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    3















    Let's say I have a windows user environment variable SOME_STRING.



    Is it possible to use its value in a PL/pgSQL function?



    If not, do I need to use an untrusted language (like PL/pythonu) or can I use a trusted one?



    I am on PG 9.2










    share|improve this question



























      3












      3








      3








      Let's say I have a windows user environment variable SOME_STRING.



      Is it possible to use its value in a PL/pgSQL function?



      If not, do I need to use an untrusted language (like PL/pythonu) or can I use a trusted one?



      I am on PG 9.2










      share|improve this question
















      Let's say I have a windows user environment variable SOME_STRING.



      Is it possible to use its value in a PL/pgSQL function?



      If not, do I need to use an untrusted language (like PL/pythonu) or can I use a trusted one?



      I am on PG 9.2







      postgresql plpgsql environment-variables






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Oct 25 '13 at 18:18







      Neil McGuigan

















      asked Oct 25 '13 at 18:08









      Neil McGuiganNeil McGuigan

      5,55932444




      5,55932444






















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          You can not access a environment variable directly; but you can access a custom configuration setting and set that to a value from the environment at startup. For example, you can pass the follow startup option using PGOPTIONS:



          PGOPTIONS="-c 'custom.some_string=${SOME_STRING}'"


          Note: the dot (.) in the name is important.



          Then retrieve the value using current_setting:



          SELECT current_setting('custom.some_string');


          (I have tried this on Linux and found it to be working, it should be the same for Windows, but may need some slight modification to cater of that particular platform.)






          share|improve this answer








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            1 Answer
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            0














            You can not access a environment variable directly; but you can access a custom configuration setting and set that to a value from the environment at startup. For example, you can pass the follow startup option using PGOPTIONS:



            PGOPTIONS="-c 'custom.some_string=${SOME_STRING}'"


            Note: the dot (.) in the name is important.



            Then retrieve the value using current_setting:



            SELECT current_setting('custom.some_string');


            (I have tried this on Linux and found it to be working, it should be the same for Windows, but may need some slight modification to cater of that particular platform.)






            share|improve this answer








            New contributor




            Corin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
            Check out our Code of Conduct.

























              0














              You can not access a environment variable directly; but you can access a custom configuration setting and set that to a value from the environment at startup. For example, you can pass the follow startup option using PGOPTIONS:



              PGOPTIONS="-c 'custom.some_string=${SOME_STRING}'"


              Note: the dot (.) in the name is important.



              Then retrieve the value using current_setting:



              SELECT current_setting('custom.some_string');


              (I have tried this on Linux and found it to be working, it should be the same for Windows, but may need some slight modification to cater of that particular platform.)






              share|improve this answer








              New contributor




              Corin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
              Check out our Code of Conduct.























                0












                0








                0







                You can not access a environment variable directly; but you can access a custom configuration setting and set that to a value from the environment at startup. For example, you can pass the follow startup option using PGOPTIONS:



                PGOPTIONS="-c 'custom.some_string=${SOME_STRING}'"


                Note: the dot (.) in the name is important.



                Then retrieve the value using current_setting:



                SELECT current_setting('custom.some_string');


                (I have tried this on Linux and found it to be working, it should be the same for Windows, but may need some slight modification to cater of that particular platform.)






                share|improve this answer








                New contributor




                Corin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
                Check out our Code of Conduct.










                You can not access a environment variable directly; but you can access a custom configuration setting and set that to a value from the environment at startup. For example, you can pass the follow startup option using PGOPTIONS:



                PGOPTIONS="-c 'custom.some_string=${SOME_STRING}'"


                Note: the dot (.) in the name is important.



                Then retrieve the value using current_setting:



                SELECT current_setting('custom.some_string');


                (I have tried this on Linux and found it to be working, it should be the same for Windows, but may need some slight modification to cater of that particular platform.)







                share|improve this answer








                New contributor




                Corin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
                Check out our Code of Conduct.









                share|improve this answer



                share|improve this answer






                New contributor




                Corin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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                answered 15 mins ago









                CorinCorin

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                101




                New contributor




                Corin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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                New contributor





                Corin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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                Corin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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