CRC function?
Looked at contrib and didn't see it.
Anyone knows if there is a CRC fuction available for PostgreSQL.
As an example of how I would use it.
Imagine a table with 3 columns
id,text, crc_val
I could then do something like:
select id from <table> where crc(text) <> crc_val;
Francisco Reyes wrote:
Looked at contrib and didn't see it.
Anyone knows if there is a CRC fuction available for PostgreSQL.As an example of how I would use it.
Imagine a table with 3 columns
id,text, crc_valI could then do something like:
select id from <table> where crc(text) <> crc_val;
Sure see contrib/pgcrypto/README:
Hashes: MD5, SHA1, CRC32, CRC32B, GOST, TIGER, RIPEMD160,
^^^^^^^^^^^^^
--
Bruce Momjian | http://candle.pha.pa.us
pgman@candle.pha.pa.us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026On Mon, 8 Jul 2002, Bruce Momjian wrote:
Francisco Reyes wrote:
Looked at contrib and didn't see it.
Anyone knows if there is a CRC fuction available for PostgreSQL.As an example of how I would use it.
Imagine a table with 3 columns
id,text, crc_valI could then do something like:
select id from <table> where crc(text) <> crc_val;Sure see contrib/pgcrypto/README:
Hashes: MD5, SHA1, CRC32, CRC32B, GOST, TIGER, RIPEMD160,
CRC32 is not installed/supported.
Wrote to the author asking him how difficult it would be to add.
Francisco Reyes wrote:
On Mon, 8 Jul 2002, Bruce Momjian wrote:
Francisco Reyes wrote:
Looked at contrib and didn't see it.
Anyone knows if there is a CRC fuction available for PostgreSQL.As an example of how I would use it.
Imagine a table with 3 columns
id,text, crc_valI could then do something like:
select id from <table> where crc(text) <> crc_val;Sure see contrib/pgcrypto/README:
Hashes: MD5, SHA1, CRC32, CRC32B, GOST, TIGER, RIPEMD160,
CRC32 is not installed/supported.
Wrote to the author asking him how difficult it would be to add.
Oh, yea, I see that now. Strange. We use CRC in the backend WAL code.
Funny it isn't already coded somewhere.
--
Bruce Momjian | http://candle.pha.pa.us
pgman@candle.pha.pa.us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026On Mon, 8 Jul 2002, Bruce Momjian wrote:
Francisco Reyes wrote:
On Mon, 8 Jul 2002, Bruce Momjian wrote:
CRC32 is not installed/supported.
Wrote to the author asking him how difficult it would be to add.Oh, yea, I see that now. Strange. We use CRC in the backend WAL code.
Funny it isn't already coded somewhere.
How difficult you think it would be to have a user visible function for it
then?
Francisco Reyes wrote:
On Mon, 8 Jul 2002, Bruce Momjian wrote:
Francisco Reyes wrote:
On Mon, 8 Jul 2002, Bruce Momjian wrote:
CRC32 is not installed/supported.
Wrote to the author asking him how difficult it would be to add.Oh, yea, I see that now. Strange. We use CRC in the backend WAL code.
Funny it isn't already coded somewhere.How difficult you think it would be to have a user visible function for it
then?
Very easy. I thought others had already done it already. Seems it
should be available.
--
Bruce Momjian | http://candle.pha.pa.us
pgman@candle.pha.pa.us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026On Mon, 8 Jul 2002, Bruce Momjian wrote:
Francisco Reyes wrote:
On Mon, 8 Jul 2002, Bruce Momjian wrote:
How difficult you think it would be to have a user visible function for it
then?Very easy. I thought others had already done it already. Seems it
should be available.
How do we go about from here?
I have a project where it would help me tons if I could get this.