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Jinfeng Ni updated DRILL-2012: ------------------------------ Assignee: Sean Hsuan-Yi Chu (was: Jinfeng Ni) > Flatten fails when we filter by a non-projected column > ------------------------------------------------------- > > Key: DRILL-2012 > URL: https://issues.apache.org/jira/browse/DRILL-2012 > Project: Apache Drill > Issue Type: Bug > Components: Query Planning & Optimization > Reporter: Rahul Challapalli > Assignee: Sean Hsuan-Yi Chu > Priority: Critical > Attachments: error.log > > > git.commit.id.abbrev=b491cdb > {code} > { > "id": "0001", > "type": "donut", > "name": "Cake", > "ppu": 0.55, > "batters": > { > "batter": > [ > { "id": "1001", "type": "Regular" }, > { "id": "1002", "type": "Chocolate" }, > { "id": "1003", "type": "Blueberry" }, > { "id": "1004", "type": "Devil's Food" } > ] > }, > "topping": > [ > { "id": "5001", "type": "None" }, > { "id": "5002", "type": "Glazed" }, > { "id": "5005", "type": "Sugar" }, > { "id": "5007", "type": "Powdered Sugar" }, > { "id": "5006", "type": "Chocolate with Sprinkles" }, > { "id": "5003", "type": "Chocolate" }, > { "id": "5004", "type": "Maple" } > ] > } > {code} > The below query fails : > {code} > select j.id id, j.name name, flatten(j.topping) tt, flatten(j.batters.batter) > bb from `sample.json` j where j.type = 'donut'; > Query failed: Query failed: Failure while running fragment., Trying to > flatten a non-repeated filed. [ 98ff5db0-4aa7-4f65-9a7a-93ae8bc41f6b on > qa-node190.qa.lab:31010 ] > [ 98ff5db0-4aa7-4f65-9a7a-93ae8bc41f6b on qa-node190.qa.lab:31010 ] > {code} > However if I include the filter column in the list of selected columns, then > the query succeeds. > {code} > select j.type, j.id id, j.name name, flatten(j.topping) tt, > flatten(j.batters.batter) bb from `user.json` j where j.type = 'donut'; > +------------+------------+------------+------------+------------+ > | type | id | name | tt | bb | > +------------+------------+------------+------------+------------+ > | donut | 0001 | Cake | {"id":"5001","type":"None"} | > {"id":"1001","type":"Regular"} | > | donut | 0001 | Cake | {"id":"5001","type":"None"} | > {"id":"1002","type":"Chocolate"} | > | donut | 0001 | Cake | {"id":"5001","type":"None"} | > {"id":"1003","type":"Blueberry"} | > | donut | 0001 | Cake | {"id":"5001","type":"None"} | > {"id":"1004","type":"Devil's Food"} | > | donut | 0001 | Cake | {"id":"5002","type":"Glazed"} | > {"id":"1001","type":"Regular"} | > | donut | 0001 | Cake | {"id":"5002","type":"Glazed"} | > {"id":"1002","type":"Chocolate"} | > | donut | 0001 | Cake | {"id":"5002","type":"Glazed"} | > {"id":"1003","type":"Blueberry"} | > | donut | 0001 | Cake | {"id":"5002","type":"Glazed"} | > {"id":"1004","type":"Devil's Food"} | > | donut | 0001 | Cake | {"id":"5005","type":"Sugar"} | > {"id":"1001","type":"Regular"} | > | donut | 0001 | Cake | {"id":"5005","type":"Sugar"} | > {"id":"1002","type":"Chocolate"} | > | donut | 0001 | Cake | {"id":"5005","type":"Sugar"} | > {"id":"1003","type":"Blueberry"} | > | donut | 0001 | Cake | {"id":"5005","type":"Sugar"} | > {"id":"1004","type":"Devil's Food"} | > | donut | 0001 | Cake | {"id":"5007","type":"Powdered > Sugar"} | {"id":"1001","type":"Regular"} | > | donut | 0001 | Cake | {"id":"5007","type":"Powdered > Sugar"} | {"id":"1002","type":"Chocolate"} | > | donut | 0001 | Cake | {"id":"5007","type":"Powdered > Sugar"} | {"id":"1003","type":"Blueberry"} | > | donut | 0001 | Cake | {"id":"5007","type":"Powdered > Sugar"} | {"id":"1004","type":"Devil's Food"} | > | donut | 0001 | Cake | {"id":"5006","type":"Chocolate with > Sprinkles"} | {"id":"1001","type":"Regular"} | > | donut | 0001 | Cake | {"id":"5006","type":"Chocolate with > Sprinkles"} | {"id":"1002","type":"Chocolate"} | > | donut | 0001 | Cake | {"id":"5006","type":"Chocolate with > Sprinkles"} | {"id":"1003","type":"Blueberry"} | > | donut | 0001 | Cake | {"id":"5006","type":"Chocolate with > Sprinkles"} | {"id":"1004","type":"Devil's Food"} | > | donut | 0001 | Cake | {"id":"5003","type":"Chocolate"} | > {"id":"1001","type":"Regular"} | > | donut | 0001 | Cake | {"id":"5003","type":"Chocolate"} | > {"id":"1002","type":"Chocolate"} | > | donut | 0001 | Cake | {"id":"5003","type":"Chocolate"} | > {"id":"1003","type":"Blueberry"} | > | donut | 0001 | Cake | {"id":"5003","type":"Chocolate"} | > {"id":"1004","type":"Devil's Food"} | > | donut | 0001 | Cake | {"id":"5004","type":"Maple"} | > {"id":"1001","type":"Regular"} | > | donut | 0001 | Cake | {"id":"5004","type":"Maple"} | > {"id":"1002","type":"Chocolate"} | > | donut | 0001 | Cake | {"id":"5004","type":"Maple"} | > {"id":"1003","type":"Blueberry"} | > | donut | 0001 | Cake | {"id":"5004","type":"Maple"} | > {"id":"1004","type":"Devil's Food"} | > {code} > I attached the relevant log file. -- This message was sent by Atlassian JIRA (v6.3.4#6332)