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Diffstat (limited to 'src/test/regress/sql/window.sql')
| -rw-r--r-- | src/test/regress/sql/window.sql | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/test/regress/sql/window.sql b/src/test/regress/sql/window.sql index e2943a38f1e..e28aec806cc 100644 --- a/src/test/regress/sql/window.sql +++ b/src/test/regress/sql/window.sql @@ -1241,3 +1241,22 @@ SELECT to_char(SUM(n::float8) OVER (ORDER BY i ROWS BETWEEN CURRENT ROW AND 1 FO SELECT i, b, bool_and(b) OVER w, bool_or(b) OVER w FROM (VALUES (1,true), (2,true), (3,false), (4,false), (5,true)) v(i,b) WINDOW w AS (ORDER BY i ROWS BETWEEN CURRENT ROW AND 1 FOLLOWING); + +-- Tests for problems with failure to walk or mutate expressions +-- within window frame clauses. + +-- test walker (fails with collation error if expressions are not walked) +SELECT array_agg(i) OVER w + FROM generate_series(1,5) i +WINDOW w AS (ORDER BY i ROWS BETWEEN (('foo' < 'foobar')::integer) PRECEDING AND CURRENT ROW); + +-- test mutator (fails when inlined if expressions are not mutated) +CREATE FUNCTION pg_temp.f(group_size BIGINT) RETURNS SETOF integer[] +AS $$ + SELECT array_agg(s) OVER w + FROM generate_series(1,5) s + WINDOW w AS (ORDER BY s ROWS BETWEEN CURRENT ROW AND GROUP_SIZE FOLLOWING) +$$ LANGUAGE SQL STABLE; + +EXPLAIN (costs off) SELECT * FROM pg_temp.f(2); +SELECT * FROM pg_temp.f(2); |