[CAY-1996] Adding a prefetch to a SelectQuery via string path doesn't work

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 4.0.M2
• Component/s: Core Library
• Environment: MySQL 5.5.40-MariaDB-36.1, InnoDB, Mac OS X 10.10, Java 8u40 (build 1.8.0_40-b27)
• Assignee: Savva Kolbachev
• Reporter: Hugi Thordarson
• Created: 01/Apr/15 13:15
• Updated: 02/Apr/15 17:49
• Resolved: 02/Apr/15 11:09

Description

Adding a prefetch to a selectQuery via the relationship's name only doesn't seem to work.
Entity "SMReceipt" has a to-one relationship "shop" to the entity "SMShop". The first fetch performs a prefetch as expceted, the second fetch performs no prefetching.

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FETCH 1 (working)
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SelectQuery<DataRow> q = SelectQuery.dataRowQuery( SMReceipt.class );
q.addPrefetch( SMReceipt.SHOP.joint() );
List<DataRow> list = objectContext.select( q );
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GENERATED SQL
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SELECT t0.creation_date, t0.date, t0.modification_date, t0.shop_id, t0.storage_number, t0.text, t0.user_id, t0.id, t1.CITY_ID, t1.LOCATION, t1.NAME, t1.CHAIN_ID, t1.SHOP_ID FROM strimillinn.fd_receipt t0 LEFT JOIN strimillinn.fd_shop t1 ON (t0.shop_id = t1.SHOP_ID)

----------------------------------
FETCH 2 (not working)
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SelectQuery<DataRow> q = SelectQuery.dataRowQuery( SMReceipt.class );
q.addPrefetch( SMReceipt.SHOP.getName() );
List<DataRow> list = objectContext.select( q );
----------------------------------
GENERATED SQL
----------------------------------
SELECT t0.creation_date, t0.date, t0.modification_date, t0.shop_id, t0.storage_number, t0.text, t0.user_id, t0.id FROM strimillinn.fd_receipt t0