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Made sure that nullability rules are applied properly when joining tables (#56)

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Dr. Patrick Urbanke (劉自成)
2025-10-03 22:54:46 +03:00
committed by GitHub
parent 45c1a52177
commit ce302f54de
42 changed files with 905 additions and 134 deletions
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4
tests/postgres/test_joins_nested.cpp
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@@ -61,7 +61,7 @@ TEST(postgres, test_joins_nested) {
select_from<Relationship, "t1">("parent_id"_t1 | as<"id">,
"first_name"_t2 | as<"first_name">,
"age"_t2 | as<"age">) |
left_join<Person, "t2">("id"_t2 == "child_id"_t1);
inner_join<Person, "t2">("id"_t2 == "child_id"_t1);
const auto get_people =
select_from<Person, "t1">(
@@ -81,7 +81,7 @@ TEST(postgres, test_joins_nested) {
.value();
const std::string expected_query =
R"(SELECT t1."last_name" AS "last_name", t1."first_name" AS "first_name_parent", t2."first_name" AS "first_name_child", (t1."age") - (t2."age") AS "parent_age_at_birth" FROM "Person" t1 INNER JOIN (SELECT t1."parent_id" AS "id", t2."first_name" AS "first_name", t2."age" AS "age" FROM "Relationship" t1 LEFT JOIN "Person" t2 ON t2."id" = t1."child_id") t2 ON t1."id" = t2."id" ORDER BY t1."id", t2."id")";
R"(SELECT t1."last_name" AS "last_name", t1."first_name" AS "first_name_parent", t2."first_name" AS "first_name_child", (t1."age") - (t2."age") AS "parent_age_at_birth" FROM "Person" t1 INNER JOIN (SELECT t1."parent_id" AS "id", t2."first_name" AS "first_name", t2."age" AS "age" FROM "Relationship" t1 INNER JOIN "Person" t2 ON t2."id" = t1."child_id") t2 ON t1."id" = t2."id" ORDER BY t1."id", t2."id")";
const std::string expected =
R"([{"last_name":"Simpson","first_name_parent":"Homer","first_name_child":"Bart","parent_age_at_birth":35.0},{"last_name":"Simpson","first_name_parent":"Homer","first_name_child":"Lisa","parent_age_at_birth":37.0},{"last_name":"Simpson","first_name_parent":"Homer","first_name_child":"Maggie","parent_age_at_birth":45.0},{"last_name":"Simpson","first_name_parent":"Marge","first_name_child":"Bart","parent_age_at_birth":30.0},{"last_name":"Simpson","first_name_parent":"Marge","first_name_child":"Lisa","parent_age_at_birth":32.0},{"last_name":"Simpson","first_name_parent":"Marge","first_name_child":"Maggie","parent_age_at_birth":40.0}])";