PostgreSQL single query SELECT single row FROM two tables without JOIN -

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the result of query need create return single row. data need pull comes 2 tables without relational columns. second table has additional rows added once per year i'll construct query via php necessary.

i know how use sql sub-selects i'm not sure how select multiple columns from second table when there no relational data in performance oriented/dynamic way.

here static example use multiple sub-selects visualize i'm trying do...

select t1.a,  t1.b,  t1.c,  (select t2.d table2) d,  (select t2.e table2) e,  (select t2.f table2) f,  (select t2.g table2) g,  t1.h,  t1.i table1 t1;

how dynamically , efficiently pull multiple columns second table has no relational columns first table?

i not want create second separate query cheap solution, have some impact on performance , worst of wouldn't expand understanding of sql.

sounds need cartesian join (no join) -- multiply values (ie, if table 1 has 100 rows , table 2 has 10 rows, you'll return 1000 rows)

select t1.a,  t1.b,  t1.c,  t2.d,  t2.e,  t2.f, t2.g, t1.h,  t1.i table1 t1, table2 t2;

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