Re: [SQL] what does ONLY do
On Fri, 2005-02-18 at 21:15, Stephan Szabo wrote: > On Fri, 18 Feb 2005, Bret Hughes wrote: > > > I can't seem to find an explanation of what adding ONLY does for an sql > > statement for instance : > > > > ALTER TABLE [ONLY] ADD COLUMN ... > > > > or what ever. Does anyone have a pointer to docs on this. I am simply > > curious since there is obviously something I am missing. > > Using the ALTER TABLE page as an example... > > name > > The name (possibly schema-qualified) of an existing table to alter. If > ONLY is specified, only that table is altered. If ONLY is not specified, > the table and all its descendant tables (if any) are updated. * can be > appended to the table name to indicate that descendant tables are to be > altered, but in the current version, this is the default behavior. (In > releases before 7.1, ONLY was the default behavior. The default can be > altered by changing the configuration parameter sql_inheritance.) > Well, (*&^$%. I have read that very page, parts if it several times. B I was adding a column to a table, thought about it again and rather than look again I decided to ask. I hate that. I pride myself on not asking questions that can be easily answered but blew it this time. Thanks for the pointer. And for doing so without making me feel stupider than necessary. Bret ---(end of broadcast)--- TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]
Re: [SQL] what does ONLY do
On Fri, 18 Feb 2005, Bret Hughes wrote: > I can't seem to find an explanation of what adding ONLY does for an sql > statement for instance : > > ALTER TABLE [ONLY] ADD COLUMN ... > > or what ever. Does anyone have a pointer to docs on this. I am simply > curious since there is obviously something I am missing. Using the ALTER TABLE page as an example... name The name (possibly schema-qualified) of an existing table to alter. If ONLY is specified, only that table is altered. If ONLY is not specified, the table and all its descendant tables (if any) are updated. * can be appended to the table name to indicate that descendant tables are to be altered, but in the current version, this is the default behavior. (In releases before 7.1, ONLY was the default behavior. The default can be altered by changing the configuration parameter sql_inheritance.) ---(end of broadcast)--- TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]
[SQL] what does ONLY do
I can't seem to find an explanation of what adding ONLY does for an sql statement for instance : ALTER TABLE [ONLY] ADD COLUMN ... or what ever. Does anyone have a pointer to docs on this. I am simply curious since there is obviously something I am missing. Bret ---(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
