Dears, We are using Drill 1.8.0 over MongoDB 3.2.10.
Here we are accessing json data (using JDBC connection via Squirrel). For Simple json dataset: [cid:[email protected]] Accessing using Squirrel: [cid:[email protected]] For Complex json data: { "_id" : " some_value ", "_updated" : " some_value ", "brands" : [ " some_value " ], "_created" : " some_value ", "_status" : " some_value ", "metadata" : { "username" : [ { "site_id" : " some_value " } ], "status" : [ Query like "select * from mongo.test.`member`;" gives error "Error: SYSTEM ERROR: IllegalArgumentException: You tried to write a Float8 type when you are using a ValueWriter of type NullableVarCharWriterImpl." For selected first level of columns, it runs successfully Our Query: How do we access fields from complex json object in drill?? Accessing "site_id" under "username": I did google and found this approach Tried: " select _id, _updated, brands[0], _created, _status, metadata.username[0].site_id from mongo.test.`member` " Gives error: "Error: PARSE ERROR: Encountered ", metadata" at line 1, column 51" This e-mail and any attachments are confidential and intended solely for the addressee and may also be privileged or exempt from disclosure under applicable law. If you are not the addressee, or have received this e-mail in error, please notify the sender immediately, delete it from your system and do not copy, disclose or otherwise act upon any part of this e-mail or its attachments. Internet e-mails are not necessarily secure and are susceptible to change. InfoCepts does not accept responsibility for changes made to this message after it was sent. Whilst all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that the onward transmission, opening or use of this message and any attachments will not adversely affect its systems or data. No responsibility is accepted by InfoCepts in this regard and the recipient should carry out such virus and other checks as it considers appropriate. InfoCepts does not also accept responsibility for the improper or incomplete transmission of the information contained in this communication nor for any delay in its receipt or damage to your system and does not guarantee that the integrity of this communication has been maintained. Replies to this e-mail may be monitored by InfoCepts for operational or business reasons.
