[5.6] Add Nested Joins to Query Builder - #23059
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Add $nestedJoins vairable to compileJoins function Add tests testJoinsWithNestedJoins, testJoinsWithMultipleNestedJoins, testJoinsWithNestedJoinWithAdvancedSubqueryCondition to DatabaseQueryBuilderTest
tillkruss
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Sometimes left joined tables should only show up if they can join to another table. The following query is a basic example and was used in one of the tests.
SELECT "users"."id",
"contacts"."id",
"contact_types"."id"
FROM "users"
LEFT JOIN "contacts"
INNER JOIN "contact_types"
ON "contacts"."contact_type_id" = "contact_types"."id"
ON "users"."id" = "contacts"."id"