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ARCHIVED TRAINING / kayak/pypika

kayak__pypika-80

This is a preserved training example. Membership in the current training wave has not been verified.
kayak/pypika · Task 88 of 169

Problem statement

Cannot use union result as a subquery
I've tried to use result of abc and efg tables as a subquery to calculate the average value from those union tables

```
 abc, efg = Tables('abc', 'efg')
 hij = Query.from_(abc).select(abc.t).union(Query.from_(efg).select(efg.t))
 q = Query.from_(hij).select(an.Avg(hij.t))
```

but actual query I get is

```
'SELECT AVG("sq0"."t") FROM (SELECT "t" FROM "abc") "sq0"'
```

expected query should be

```
'SELECT AVG("sq0"."t") FROM ((SELECT "t" FROM "abc") UNION (SELECT "t" FROM "efg")) "sq0"'
```

Am I doing something wrong? or there is any other ways to achieve this.

Thanks

Training membership

opd_e4b_pure_v7

Task issues extracted from preserved verified_rft_messages training examples. This is not a verified current RL wave manifest.

Task and snapshot provenance

Snapshot captured 2026-11-12T17:06:59.476467+00:00 · Autoresearch-Arena/gemma-4-developer-agent

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  "datasets": [
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  "instance_id": "kayak__pypika-80",
  "problem_statement": "Cannot use union result as a subquery\nI've tried to use result of abc and efg tables as a subquery to calculate the average value from those union tables\r\n\r\n```\r\n abc, efg = Tables('abc', 'efg')\r\n hij = Query.from_(abc).select(abc.t).union(Query.from_(efg).select(efg.t))\r\n q = Query.from_(hij).select(an.Avg(hij.t))\r\n```\r\n\r\nbut actual query I get is\r\n\r\n```\r\n'SELECT AVG(\"sq0\".\"t\") FROM (SELECT \"t\" FROM \"abc\") \"sq0\"'\r\n```\r\n\r\nexpected query should be\r\n\r\n```\r\n'SELECT AVG(\"sq0\".\"t\") FROM ((SELECT \"t\" FROM \"abc\") UNION (SELECT \"t\" FROM \"efg\")) \"sq0\"'\r\n```\r\n\r\nAm I doing something wrong? or there is any other ways to achieve this.\r\n\r\nThanks",
  "repo": "kayak/pypika",
  "source": "v2/experiments/train_data/opd_e4b_pure_v7/verified_rft_messages.jsonl",
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}
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  "captured_at": "2026-11-12T17:06:59.476467+00:00",
  "membership": "archived training",
  "membership_evidence": "Task issues extracted from preserved verified_rft_messages training examples. This is not a verified current RL wave manifest.",
  "name": "Preserved post-training task archive",
  "source": "Autoresearch-Arena/gemma-4-developer-agent",
  "source_revision": "016496de222aaafca0d4ee4c18efc63ba616f76e",
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