postgresql rename index





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up vote
1
down vote

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I want to understand how safe is the rename command:



ALTER INDEX old_name RENAME TO old_name;


The index was created by command(for the foreign key column):



CREATE INDEX old_name ON table_t1 (user_id);


Does it mean simple update in the postgres system tables or do much more operations. I try to find it in the docs but unsuccess.






postgresql index







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  • @McNets thank you for help with the question details, no it is index without any features.
    – Bear Brown
    yesterday










  • @McNets: that link is irrelevant for Postgres as it is about SQL Server and Postgres does not have clustered indexes to begin with. (plus it's about dropping an index, not about renaming it)
    – a_horse_with_no_name
    yesterday



















up vote
1
down vote

favorite












I want to understand how safe is the rename command:



ALTER INDEX old_name RENAME TO old_name;


The index was created by command(for the foreign key column):



CREATE INDEX old_name ON table_t1 (user_id);


Does it mean simple update in the postgres system tables or do much more operations. I try to find it in the docs but unsuccess.






postgresql index







share|improve this question









New contributor




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




















  • @McNets thank you for help with the question details, no it is index without any features.
    – Bear Brown
    yesterday










  • @McNets: that link is irrelevant for Postgres as it is about SQL Server and Postgres does not have clustered indexes to begin with. (plus it's about dropping an index, not about renaming it)
    – a_horse_with_no_name
    yesterday















up vote
1
down vote

favorite









up vote
1
down vote

favorite











I want to understand how safe is the rename command:



ALTER INDEX old_name RENAME TO old_name;


The index was created by command(for the foreign key column):



CREATE INDEX old_name ON table_t1 (user_id);


Does it mean simple update in the postgres system tables or do much more operations. I try to find it in the docs but unsuccess.






postgresql index







share|improve this question









New contributor




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











I want to understand how safe is the rename command:



ALTER INDEX old_name RENAME TO old_name;


The index was created by command(for the foreign key column):



CREATE INDEX old_name ON table_t1 (user_id);


Does it mean simple update in the postgres system tables or do much more operations. I try to find it in the docs but unsuccess.






postgresql index




postgresql index






share|improve this question









New contributor




Bear Brown 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 question









New contributor




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









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edited yesterday





















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New contributor




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





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






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












  • @McNets thank you for help with the question details, no it is index without any features.
    – Bear Brown
    yesterday










  • @McNets: that link is irrelevant for Postgres as it is about SQL Server and Postgres does not have clustered indexes to begin with. (plus it's about dropping an index, not about renaming it)
    – a_horse_with_no_name
    yesterday




















  • @McNets thank you for help with the question details, no it is index without any features.
    – Bear Brown
    yesterday










  • @McNets: that link is irrelevant for Postgres as it is about SQL Server and Postgres does not have clustered indexes to begin with. (plus it's about dropping an index, not about renaming it)
    – a_horse_with_no_name
    yesterday


















@McNets thank you for help with the question details, no it is index without any features.
– Bear Brown
yesterday




@McNets thank you for help with the question details, no it is index without any features.
– Bear Brown
yesterday












@McNets: that link is irrelevant for Postgres as it is about SQL Server and Postgres does not have clustered indexes to begin with. (plus it's about dropping an index, not about renaming it)
– a_horse_with_no_name
yesterday






@McNets: that link is irrelevant for Postgres as it is about SQL Server and Postgres does not have clustered indexes to begin with. (plus it's about dropping an index, not about renaming it)
– a_horse_with_no_name
yesterday












1 Answer
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up vote
2
down vote



accepted










Quote from the manual




The RENAME form changes the name of the index (...) There is no effect on the stored data




(emphasis mine)



So yes, this is a simple update to the system catalog.



The statement sill needs an exclusive lock on the table if I'm not mistaken, but the lock will only be held for a very short period.






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    1 Answer
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    active

    oldest

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    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes








    up vote
    2
    down vote



    accepted










    Quote from the manual




    The RENAME form changes the name of the index (...) There is no effect on the stored data




    (emphasis mine)



    So yes, this is a simple update to the system catalog.



    The statement sill needs an exclusive lock on the table if I'm not mistaken, but the lock will only be held for a very short period.






    share|improve this answer

























      up vote
      2
      down vote



      accepted










      Quote from the manual




      The RENAME form changes the name of the index (...) There is no effect on the stored data




      (emphasis mine)



      So yes, this is a simple update to the system catalog.



      The statement sill needs an exclusive lock on the table if I'm not mistaken, but the lock will only be held for a very short period.






      share|improve this answer























        up vote
        2
        down vote



        accepted







        up vote
        2
        down vote



        accepted






        Quote from the manual




        The RENAME form changes the name of the index (...) There is no effect on the stored data




        (emphasis mine)



        So yes, this is a simple update to the system catalog.



        The statement sill needs an exclusive lock on the table if I'm not mistaken, but the lock will only be held for a very short period.






        share|improve this answer












        Quote from the manual




        The RENAME form changes the name of the index (...) There is no effect on the stored data




        (emphasis mine)



        So yes, this is a simple update to the system catalog.



        The statement sill needs an exclusive lock on the table if I'm not mistaken, but the lock will only be held for a very short period.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered yesterday









        a_horse_with_no_name

        38k772110




        38k772110






















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