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'bitwise and' index
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* 'bitwise and' index
@ 2015-03-20 17:27 Lance Jacob <JacobLJ@familysearch.org>
  2015-03-20 17:33 ` Re: 'bitwise and' index Igor Neyman <ineyman@perceptron.com>
  0 siblings, 1 reply; 2+ messages in thread

From: Lance Jacob @ 2015-03-20 17:27 UTC (permalink / raw)
  To: pgsql-sql

I have an Oracle database that I migrated to Postgres.  I’ve been successful with everything except the creation of one index.  On the oracle side the index was created with the syntax “create index abc on xyz (bitand(column_name,16384))”.  What would be the proper syntax for creating a similar bitwise function-based index in Postgres?  Or, is it even possible?

LanceJacob


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^ permalink  raw  reply  [nested|flat] 2+ messages in thread

* Re: 'bitwise and' index
  2015-03-20 17:27 'bitwise and' index Lance Jacob <JacobLJ@familysearch.org>
@ 2015-03-20 17:33 ` Igor Neyman <ineyman@perceptron.com>
  0 siblings, 0 replies; 2+ messages in thread

From: Igor Neyman @ 2015-03-20 17:33 UTC (permalink / raw)
  To: Lance Jacob <JacobLJ@familysearch.org>; pgsql-sql



From: pgsql-sql-owner@postgresql.org [mailto:pgsql-sql-owner@postgresql.org] On Behalf Of Lance Jacob
Sent: Friday, March 20, 2015 1:28 PM
To: pgsql-sql@postgresql.org
Subject: [SQL] 'bitwise and' index

I have an Oracle database that I migrated to Postgres.  I've been successful with everything except the creation of one index.  On the oracle side the index was created with the syntax "create index abc on xyz (bitand(column_name,16384))".  What would be the proper syntax for creating a similar bitwise function-based index in Postgres?  Or, is it even possible?

LanceJacob


Try:
create index abc on xyz (column_name & 16384);

Regards,
Igor Neyman

^ permalink  raw  reply  [nested|flat] 2+ messages in thread


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2015-03-20 17:27 'bitwise and' index Lance Jacob <JacobLJ@familysearch.org>
2015-03-20 17:33 ` Igor Neyman <ineyman@perceptron.com>

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