Обсуждение: ODBC Driver Options
Hi I have installed psqlodbc-07_03_0200 for Windows (under XP). I use it for M$ Access as a frontend of a pg database on a FreeBSD Server. Can anyone tell me where I can find any documents about the options of the driver? I have searched under http://gborg.postgresql.org/project/psqlodbc/projdisplay.php and http://techdocs.postgresql.org. The document "ftp://ftp.postgresql.org/pub/odbc/psqlodbc_confighelp.html" doesn't exist anymore. I would be lucky to know what - Use Declare/Fetch - Parse Statements - Cancel as FreeStmt(Exp) - Row Versioning - Disallow Premature - Server side prepare mean and what are the effects of them? Excuse my bad english Regards Nicola
Hi, It's not as up to date as it should be, but most options are documented at http://gborg.postgresql.org/project/psqlodbc/genpage.php?doc-config Regards, Dave. > -----Original Message----- > From: Nicola Tiling [mailto:nti@w4w.net] > Sent: 17 May 2004 11:12 > To: pgsql-odbc@postgresql.org > Subject: [ODBC] ODBC Driver Options > > Hi > > I have installed psqlodbc-07_03_0200 for Windows (under XP). > I use it for M$ Access as a frontend of a pg database on a > FreeBSD Server. > > Can anyone tell me where I can find any documents about the > options of the driver? I have searched under > http://gborg.postgresql.org/project/psqlodbc/projdisplay.php > and http://techdocs.postgresql.org. The document > "ftp://ftp.postgresql.org/pub/odbc/psqlodbc_confighelp.html" > doesn't exist anymore. > > I would be lucky to know what > > - Use Declare/Fetch > - Parse Statements > - Cancel as FreeStmt(Exp) > - Row Versioning > - Disallow Premature > - Server side prepare > > mean and what are the effects of them? > > Excuse my bad english > Regards > Nicola > > > > ---------------------------(end of > broadcast)--------------------------- > TIP 9: the planner will ignore your desire to choose an index > scan if your > joining column's datatypes do not match >
--- Dave Page <dpage@vale-housing.co.uk> wrote: > Hi, > > It's not as up to date as it should be, but most > options are documented > at > http://gborg.postgresql.org/project/psqlodbc/genpage.php?doc-config > > Regards, Dave. > > > -----Original Message----- > > From: Nicola Tiling [mailto:nti@w4w.net] > > Sent: 17 May 2004 11:12 > > To: pgsql-odbc@postgresql.org > > Subject: [ODBC] ODBC Driver Options > > > > Hi > > > > I have installed psqlodbc-07_03_0200 for Windows > (under XP). > > I use it for M$ Access as a frontend of a pg > database on a > > FreeBSD Server. > > > > Can anyone tell me where I can find any documents > about the > > options of the driver? I have searched under > > > http://gborg.postgresql.org/project/psqlodbc/projdisplay.php > > > and http://techdocs.postgresql.org. The document > > > "ftp://ftp.postgresql.org/pub/odbc/psqlodbc_confighelp.html" > > > doesn't exist anymore. > > > > I would be lucky to know what > > > > - Use Declare/Fetch > > - Parse Statements > > - Cancel as FreeStmt(Exp) > > - Row Versioning > > - Disallow Premature > > - Server side prepare > > > > mean and what are the effects of them? Since you are using MS Access, you will probably avoid some problems by setting "row versioning" to true. Also, some people have reported big performance gains from setting "use declare/fetch" to true, so you may want to test that. I am not aware that any of those other options will give you any benefit with other than default values. > > > > Excuse my bad english > > Regards > > Nicola > > > > > > > > ---------------------------(end of > > broadcast)--------------------------- > > TIP 9: the planner will ignore your desire to > choose an index > > scan if your > > joining column's datatypes do not match > > > > ---------------------------(end of > broadcast)--------------------------- > TIP 9: the planner will ignore your desire to choose > an index scan if your > joining column's datatypes do not match __________________________________ Do you Yahoo!? SBC Yahoo! - Internet access at a great low price. http://promo.yahoo.com/sbc/
Jeff Eckermann wrote: > --- Dave Page <dpage@vale-housing.co.uk> wrote: > >>Hi, >> >>It's not as up to date as it should be, but most >>options are documented >>at >> > > http://gborg.postgresql.org/project/psqlodbc/genpage.php?doc-config > >>Regards, Dave. >> >> >>>-----Original Message----- >>>From: Nicola Tiling [mailto:nti@w4w.net] >>>Sent: 17 May 2004 11:12 >>>To: pgsql-odbc@postgresql.org >>>Subject: [ODBC] ODBC Driver Options >>> >>>Hi >>> >>>I have installed psqlodbc-07_03_0200 for Windows >> >>(under XP). >> >>>I use it for M$ Access as a frontend of a pg >> >>database on a >> >>>FreeBSD Server. >>> >>>Can anyone tell me where I can find any documents >> >>about the >> >>>options of the driver? I have searched under >>> >> > http://gborg.postgresql.org/project/psqlodbc/projdisplay.php > >>>and http://techdocs.postgresql.org. The document >>> >> > "ftp://ftp.postgresql.org/pub/odbc/psqlodbc_confighelp.html" > >>>doesn't exist anymore. >>> >>>I would be lucky to know what >>> >>>- Use Declare/Fetch >>>- Parse Statements >>>- Cancel as FreeStmt(Exp) >>>- Row Versioning >>>- Disallow Premature >>>- Server side prepare >>> >>>mean and what are the effects of them? > > > Since you are using MS Access, you will probably avoid > some problems by setting "row versioning" to true. > Also, some people have reported big performance gains > from setting "use declare/fetch" to true, so you may > want to test that. I am not aware that any of those > other options will give you any benefit with other > than default values. A related question would be what the "name" of these variables are if you are passing them in a DSN-less connection. For example, I was having problems in my VB6 application where if I didn't turn off Keyset Query Optimization I would get errors. This is easy to do in the ODBC setup, but in order to do it via a DSN-less connection, you have to pass "ksqo=;" in the connection string. In this case, it is fairly easy to guess - but what about others, like "use declare/fetch"? I would love to try this out in my application, but without knowing what variable to pass - it would take a little to track down (likely a before/after snapshot of a log, while using a DSN connection and turning off/on the flag to see what changes in the log entries). A list of these variables and what their settings can be would be doubly helpful... Andrew Ayers Phoenix, Arizona >>>Excuse my bad english >>>Regards >>>Nicola >>> >>> >>> >>>---------------------------(end of >>>broadcast)--------------------------- >>>TIP 9: the planner will ignore your desire to >> >>choose an index >> >>>scan if your >>> joining column's datatypes do not match >>> >> >>---------------------------(end of >>broadcast)--------------------------- >>TIP 9: the planner will ignore your desire to choose >>an index scan if your >> joining column's datatypes do not match > > > > > > > __________________________________ > Do you Yahoo!? > SBC Yahoo! - Internet access at a great low price. > http://promo.yahoo.com/sbc/ > > ---------------------------(end of broadcast)--------------------------- > TIP 1: subscribe and unsubscribe commands go to majordomo@postgresql.org > -- CONFIDENTIALITY NOTICE -- This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain informationthat is privileged, confidential and exempt from disclosure under applicable law. If you are not the intendedaddressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy,disclose or distribute to anyone the message or any information contained in the message. If you have received thismessage in error, please immediately advise the sender by reply email, and delete the message. Thank you.
> Since you are using MS Access, you will probably avoid some > problems by setting "row versioning" to true. I'm using Access 2003 and think there are no problems with "row versioning" > Also, some people have reported big performance gains from > setting "use declare/fetch" to true, On the contrary it make my Access fall asleep Thanks a lot for the links and explanations Nicola
Have a look here http://www.flatmtn.com/computer/Linux-PostgreSQL.html I think "use declare/fetch" is "FETCH" ' PG_ODBC_PARAMETER ACCESS_PARAMETER ' ********************************************* ' READONLY A0 ' PROTOCOL A1 ' FAKEOIDINDEX A2 'A2 must be 0 unless A3=1 ' SHOWOIDCOLUMN A3 ' ROWVERSIONING A4 ' SHOWSYSTEMTABLES A5 ' CONNSETTINGS A6 'must be a value, blank is A6=; ' FETCH A7 'must be a value, try 100 ' SOCKET A8 'default 4096 ' UNKNOWNSIZES A9 ' range [0-2] ' MAXVARCHARSIZE B0 'must be a value, default 254 ' MAXLONGVARCHARSIZE B1 ' DEBUG B2 ' COMMLOG B3 ' OPTIMIZER B4 ' note that 1 = _cancel_ generic optimizer... ' KSQO B5 ' USEDECLAREFETCH B6 ' TEXTASLONGVARCHAR B7 ' UNKNOWNSASLONGVARCHAR B8 ' BOOLSASCHAR B9 ' INVERSEBOOL? BI '"true is -1"?, 0=checked? ' PARSE C0 ' CANCELASFREESTMT C1 ' EXTRASYSTABLEPREFIXES C2 'must be a value, default dd_
Nicola Tiling wrote: > Have a look here > > http://www.flatmtn.com/computer/Linux-PostgreSQL.html > > I think "use declare/fetch" is "FETCH" I will give it a shot and play around with it - thank you for the reference!!! Andrew Ayers Phoenix, Arizona > > > ' PG_ODBC_PARAMETER ACCESS_PARAMETER > ' ********************************************* > ' READONLY A0 > ' PROTOCOL A1 > ' FAKEOIDINDEX A2 'A2 must be 0 unless A3=1 > ' SHOWOIDCOLUMN A3 > ' ROWVERSIONING A4 > ' SHOWSYSTEMTABLES A5 > ' CONNSETTINGS A6 'must be a value, blank is A6=; > ' FETCH A7 'must be a value, try 100 > ' SOCKET A8 'default 4096 > ' UNKNOWNSIZES A9 ' range [0-2] > ' MAXVARCHARSIZE B0 'must be a value, default 254 > ' MAXLONGVARCHARSIZE B1 > ' DEBUG B2 > ' COMMLOG B3 > ' OPTIMIZER B4 ' note that 1 = _cancel_ generic optimizer... > ' KSQO B5 > ' USEDECLAREFETCH B6 > ' TEXTASLONGVARCHAR B7 > ' UNKNOWNSASLONGVARCHAR B8 > ' BOOLSASCHAR B9 > ' INVERSEBOOL? BI '"true is -1"?, 0=checked? > ' PARSE C0 > ' CANCELASFREESTMT C1 > ' EXTRASYSTABLEPREFIXES C2 'must be a value, default dd_ > > > > -- CONFIDENTIALITY NOTICE -- This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain informationthat is privileged, confidential and exempt from disclosure under applicable law. If you are not the intendedaddressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy,disclose or distribute to anyone the message or any information contained in the message. If you have received thismessage in error, please immediately advise the sender by reply email, and delete the message. Thank you.
A neat little trick that will work with any ODBC driver: 1. Create a file (any name) with a .udl extension. 2. Run the file 3. In the dialog that comes up, choose "use connections string", and "build"; then follow the prompts. 4. When done, open the file with a text editor. You will see a full connection string, with the names of all of the driver options. Thanks to the poster, whose name I cannot recall, who suggested this. --- Andrew Ayers <aayers@eldocomp.com> wrote: > Nicola Tiling wrote: > > Have a look here > > > > > http://www.flatmtn.com/computer/Linux-PostgreSQL.html > > > > I think "use declare/fetch" is "FETCH" > > I will give it a shot and play around with it - > thank you for the > reference!!! > > Andrew Ayers > Phoenix, Arizona > > > > > > > ' PG_ODBC_PARAMETER ACCESS_PARAMETER > > ' ********************************************* > > ' READONLY A0 > > ' PROTOCOL A1 > > ' FAKEOIDINDEX A2 'A2 must be 0 > unless A3=1 > > ' SHOWOIDCOLUMN A3 > > ' ROWVERSIONING A4 > > ' SHOWSYSTEMTABLES A5 > > ' CONNSETTINGS A6 'must be a > value, blank is A6=; > > ' FETCH A7 'must be a > value, try 100 > > ' SOCKET A8 'default 4096 > > ' UNKNOWNSIZES A9 ' range [0-2] > > ' MAXVARCHARSIZE B0 'must be a > value, default 254 > > ' MAXLONGVARCHARSIZE B1 > > ' DEBUG B2 > > ' COMMLOG B3 > > ' OPTIMIZER B4 ' note that 1 > = _cancel_ generic optimizer... > > ' KSQO B5 > > ' USEDECLAREFETCH B6 > > ' TEXTASLONGVARCHAR B7 > > ' UNKNOWNSASLONGVARCHAR B8 > > ' BOOLSASCHAR B9 > > ' INVERSEBOOL? BI '"true is > -1"?, 0=checked? > > ' PARSE C0 > > ' CANCELASFREESTMT C1 > > ' EXTRASYSTABLEPREFIXES C2 'must be a > value, default dd_ > > > > > > > > > > > -- CONFIDENTIALITY NOTICE -- > > This message is intended for the sole use of the > individual and entity to whom it is addressed, and > may contain information that is privileged, > confidential and exempt from disclosure under > applicable law. If you are not the intended > addressee, nor authorized to receive for the > intended addressee, you are hereby notified that you > may not use, copy, disclose or distribute to anyone > the message or any information contained in the > message. If you have received this message in error, > please immediately advise the sender by reply email, > and delete the message. Thank you. __________________________________ Do you Yahoo!? SBC Yahoo! - Internet access at a great low price. http://promo.yahoo.com/sbc/
Jeff Eckermann wrote: > A neat little trick that will work with any ODBC > driver: > > 1. Create a file (any name) with a .udl extension. > 2. Run the file > 3. In the dialog that comes up, choose "use > connections string", and "build"; then follow the > prompts. > 4. When done, open the file with a text editor. You > will see a full connection string, with the names of > all of the driver options. > > Thanks to the poster, whose name I cannot recall, who > suggested this. Cool - this works great - thanks! BTW - the "Use declare/fetch" option for the string was: UseDeclareFetch=1 (or 0 to turn off) [smacks head against desk - walks away in shame] Andrew > --- Andrew Ayers <aayers@eldocomp.com> wrote: > >>Nicola Tiling wrote: >> >>>Have a look here >>> >>> >> > http://www.flatmtn.com/computer/Linux-PostgreSQL.html > >>>I think "use declare/fetch" is "FETCH" >> >>I will give it a shot and play around with it - >>thank you for the >>reference!!! >> >>Andrew Ayers >>Phoenix, Arizona >> >> >>> >>>' PG_ODBC_PARAMETER ACCESS_PARAMETER >>>' ********************************************* >>>' READONLY A0 >>>' PROTOCOL A1 >>>' FAKEOIDINDEX A2 'A2 must be 0 >> >>unless A3=1 >> >>>' SHOWOIDCOLUMN A3 >>>' ROWVERSIONING A4 >>>' SHOWSYSTEMTABLES A5 >>>' CONNSETTINGS A6 'must be a >> >>value, blank is A6=; >> >>>' FETCH A7 'must be a >> >>value, try 100 >> >>>' SOCKET A8 'default 4096 >>>' UNKNOWNSIZES A9 ' range [0-2] >>>' MAXVARCHARSIZE B0 'must be a >> >>value, default 254 >> >>>' MAXLONGVARCHARSIZE B1 >>>' DEBUG B2 >>>' COMMLOG B3 >>>' OPTIMIZER B4 ' note that 1 >> >>= _cancel_ generic optimizer... >> >>>' KSQO B5 >>>' USEDECLAREFETCH B6 >>>' TEXTASLONGVARCHAR B7 >>>' UNKNOWNSASLONGVARCHAR B8 >>>' BOOLSASCHAR B9 >>>' INVERSEBOOL? BI '"true is >> >>-1"?, 0=checked? >> >>>' PARSE C0 >>>' CANCELASFREESTMT C1 >>>' EXTRASYSTABLEPREFIXES C2 'must be a >> >>value, default dd_ -- CONFIDENTIALITY NOTICE -- This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain informationthat is privileged, confidential and exempt from disclosure under applicable law. If you are not the intendedaddressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy,disclose or distribute to anyone the message or any information contained in the message. If you have received thismessage in error, please immediately advise the sender by reply email, and delete the message. Thank you.