postgresql/src/interfaces
Bruce Momjian 57040f78f7 Attached is a patch for JDBC's getColumn() function that was broken /
flawed in the following ways:

1. Only returned columns that had a default value defined, rather than all
columns in a table
2. Used 2 * N + 1 queries to find out attributes, comments and typenames
for N columns.

By using some outer join syntax it is possible to retrieve all necessary
information in just one SQL statement. This means this version is only
suitable for PostgreSQL >= 7.1. Don't know whether that's a problem.

I've tested this function with current sources and 7.1.3 and patched both
jdbc1 and jdbc2. I haven't compiled nor tested the jdbc1 version though, as
I have no JDK 1.1 available.

Note the discussion in http://fts.postgresql.org/db/mw/msg.html?mid=1029626
regarding differences in obtaining comments on database object in 7.1 and
7.2. I was unable to use the following syntax (or similar ones):

select
     ...,
     description
from
     ...
     left outer join col_description(a.attrelid, a.attnum) description
order by
     c.relname, a.attnum;

(the error was parse error at or near '(') so I had to paste the actual
code for the col_description function into the left outer join. Maybe
someone who is more knowledgable about outer joins might provide me with a
better SQL statement.

Jeroen van Vianen
2001-09-06 03:20:30 +00:00
..
cli pgindent run. Make it all clean. 2001-03-22 04:01:46 +00:00
ecpg Avoid #ifdef inside printf() ... that loses on platforms where printf() 2001-08-28 02:47:18 +00:00
jdbc Attached is a patch for JDBC's getColumn() function that was broken / 2001-09-06 03:20:30 +00:00
libpgeasy Stamp CVS as 7.2. Update all interface version numbers. This is the 2001-05-11 01:46:33 +00:00
libpgtcl Below is the patch against current cvs for libpgtcl and 2001-09-06 02:54:56 +00:00
libpq Below is the patch against current cvs for libpgtcl and 2001-09-06 02:54:56 +00:00
libpq++ Rename config.h to pg_config.h and os.h to pg_config_os.h, fix a number of 2001-08-24 14:07:50 +00:00
odbc Fix a wrong error handling. 2001-08-28 05:52:13 +00:00
perl5 /usr/local/bin/perl => /usr/bin/perl 2001-09-04 11:41:04 +00:00
python Rename config.h to pg_config.h and os.h to pg_config_os.h, fix a number of 2001-08-24 14:07:50 +00:00
libpgtcl.def Below is the patch against current cvs for libpgtcl and 2001-09-06 02:54:56 +00:00
Makefile Recursive distclean shouldn't depend on recursive clean. Subdirectories 2001-03-09 21:50:27 +00:00
win32.mak Below is the patch against current cvs for libpgtcl and 2001-09-06 02:54:56 +00:00