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https://issues.apache.org/jira/browse/CALCITE-1181?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15223439#comment-15223439
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Julian Hyde commented on CALCITE-1181:
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Maybe some rows are being returned in the response to {{prepareAndExecute}}?
> FetchResponse always return no rows
> -----------------------------------
>
> Key: CALCITE-1181
> URL: https://issues.apache.org/jira/browse/CALCITE-1181
> Project: Calcite
> Issue Type: Bug
> Components: avatica
> Affects Versions: avatica-1.7.1
> Environment: HBase 1.1 and Phoenix 4.7.0
> Reporter: Francis Chuang
> Assignee: Julian Hyde
>
> Assuming I have a table called my_table which is created and seeded like so:
> {code:sql}
> CREATE TABLE my_table (k BIGINT PRIMARY KEY, v VARCHAR) TRANSACTIONAL=true
> UPSERT INTO my_table VALUES (1,'A')
> UPSERT INTO my_table VALUES (2,'B')
> {code}
> I have 2 rows in the table. If I query the table using SELECT * FROM
> my_table, and request a maxRowCount of 1, using FetchRequest to request
> further rows always returns 0 rows.
> For ease of reproduction, I have included CURL commands (avatica will need to
> have serialization set to JSON):
> {code}
> curl localhost:8765 -XPOST --data '{"request":
> "openConnection","connectionId": "my-conn"}'
> curl localhost:8765 -XPOST --data '{"request":
> "createStatement","connectionId": "my-conn"}'
> curl localhost:8765 -XPOST --data '{"request":
> "prepareAndExecute","connectionId": "my-conn","statementId": 12345,"sql":
> "SELECT * FROM my_table","maxRowCount": 1}' # update the statementId
> curl localhost:8765 -XPOST --data '{"request": "fetch","connectionId":
> "my-conn","statementId": 12345,"offset": 0,"fetchMaxRowCount": 1}' # update
> the statementId
> {code}
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