Re: [HACKERS] [BUGS] 7.4: CHAR padding inconsistency

2003-11-20 Thread Troels Arvin
e like? I see no justification for the change: It may break old queries in subtle ways and doesn't make the CHAR-type any more consistent than before. -- Greetings from Troels Arvin, Copenhagen, Denmark ---(end of broadcast)--- TIP 1: subs

Re: [HACKERS] 7.4: CHAR padding inconsistency

2003-11-20 Thread Troels Arvin
ence 1: An interesting one is this one: http://article.gmane.org/gmane.comp.db.postgresql.devel.general/10958/match=char+padding -- Greetings from Troels Arvin, Copenhagen, Denmark ---(end of broadcast)--- TIP 6: Have you searched our list archives? http://archives.postgresql.org

[HACKERS] DETERMINISTIC as synonym for IMMUTABLE

2004-10-17 Thread Troels Arvin
x27;d rather spend my time finishing the conformance review. -- Greetings from Troels Arvin, Copenhagen, Denmark ---(end of broadcast)--- TIP 6: Have you searched our list archives? http://archives.postgresql.org

Re: [HACKERS] DETERMINISTIC as synonym for IMMUTABLE

2004-10-17 Thread Troels Arvin
the same thing. I'm having a hard time seeing the difference between DETERMINISTIC and IMMUTABLE. My suggestion for "NOT DETERMINISTIC"==VOLATILE is because VOLATILE seems to be the least strict of the three PostgreSQL volatility categories. Do you disagree on both, or just the

Re: [HACKERS] DETERMINISTIC as synonym for IMMUTABLE

2004-10-18 Thread Troels Arvin
n: It's still safe to call a function including now() NOT DETERMINISTIC==VOLATILE; no unexpected results should result from this, except - potentially - lower performance. I think it's a common phenomenon that performance can sometimes be increased by utilizing certain pr

[HACKERS] Adding a suffix array index

2004-11-19 Thread Troels Arvin
ng a large index covering all the indexes values in the column. Is it conceivable to create such an index "cluster"? 2. Does someone know of interesting documentation (perhaps in the form of interesting code comments) which I should read, as a basis for creating a non-standard

Re: [HACKERS] Adding a suffix array index

2004-11-19 Thread Troels Arvin
ies), as opposed to very long, contiguous sequences. Am I mistaken? -- Greetings from Troels Arvin, Copenhagen, Denmark ---(end of broadcast)--- TIP 2: you can get off all lists at once with the unregister command (send "unregister YourEma

Re: [HACKERS] Adding a suffix array index

2004-11-19 Thread Troels Arvin
ams (or > modify them to 4,5,6 or 7-grams ;) to get some feel how that works. > > trigram module is in contrib/pg_trgm. (/me Printing readme.) Thanks. -- Greetings from Troels Arvin, Copenhagen, Denmark ---(end of broadcast)---

Re: [HACKERS] Adding a suffix array index

2004-11-28 Thread Troels Arvin
ointers in the index? Am I right that the answer is related to BlockIdData? If I store BlockIds in an index, do I then have to worry about physical blocks on the disk which might somehow move? -- Greetings from Troels Arvin, Copenhagen, Denmark ---(end of broadcast)--

Re: [HACKERS] Adding a suffix array index

2004-11-28 Thread Troels Arvin
IO-wise to "jump" around in an index than to go back and forth between index and tuple blocks? -- Greetings from Troels Arvin, Copenhagen, Denmark ---(end of broadcast)--- TIP 8: explain analyze is your friend

Re: [HACKERS] Adding a suffix array index

2004-12-03 Thread Troels Arvin
CREATE TYPE bigobj (INPUT = lo_filein, OUTPUT = lo_fileout,...) Reference 1: Stonebraker & Olson: Large Object Support in POSTGRES (1993) http://epoch.cs.berkeley.edu:8000/postgres/papers/S2K-93-30.pdf -- Greetings from Troels Arvin, Copenhagen, Denmark ---(end of broadcast)--- TIP 4: Don't 'kill -9' the postmaster

Re: [HACKERS] Extending System Views: proposal for 8.1/8.2

2005-01-22 Thread Troels Arvin
is - solely - or part of - a uniqueness constraint - solely - or part of - a foreign key (pointing where?) - if it is subject to a (set of) CHECK constraints I could use this to more easily build user interfaces (forms). -- Greetings from Troels Arvin, Copenhagen, Denmark ---

Re: [HACKERS] Some download statistics

2005-02-24 Thread Troels Arvin
rball. > Frankly, I'd suggest dropping the splits. Thoughts? I also found the split sources + a non-split sources version to be confusing. As you, I think that splitting should be dropped. -- Greetings from Troels Arvin, Copenhagen, Denmark ---(end of broadcast)---