just started using DBIx::Recordset Links with PostgreSQL and ran
into a few problems:


DBIx::Compat gives SupportSQLJoin => 0 for Pg.
PostgreSQL 7.1 (at least) claims to fully support joins.


DBIx::Recordset::BuildFields() has explicit code for SupportSQLJoin = (1..3),
but the "else" clause here builds statements like:

  SELECT <fields> FROM table1,OUTER table2 ,OUTER table3 WHERE ...

which (as far as i can work out), is not valid SQL. (I presume this is
supposed to be "LEFT OUTER"? i've never used sql joins before.)

this, combined with above SupportSQLJoin=0, makes Links unusable with Pg :(


there is no code (or documentation) for SupportSQLJoin = 4, which Informix
claims to have.

-- 
 - Gus

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