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Posted to issues@beam.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2020/01/22 20:03:00 UTC
[jira] [Work logged] (BEAM-9169) Extra character introduced during
Calcite unparsing
[ https://issues.apache.org/jira/browse/BEAM-9169?focusedWorklogId=375847&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-375847 ]
ASF GitHub Bot logged work on BEAM-9169:
----------------------------------------
Author: ASF GitHub Bot
Created on: 22/Jan/20 20:02
Start Date: 22/Jan/20 20:02
Worklog Time Spent: 10m
Work Description: 11moon11 commented on pull request #10662: [BEAM-9169] [ZetaSQL] Use custom escape method for unparsing
URL: https://github.com/apache/beam/pull/10662
`StringEscapeUtils.escapeJava` escapes `/`, thus creating an invalid ZetaSQL string.
More about what GoogleSQL expects to be escaped can be found here: https://cloud.google.com/bigquery/docs/reference/standard-sql/lexical#string-and-bytes-literals
------------------------
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Issue Time Tracking
-------------------
Worklog Id: (was: 375847)
Remaining Estimate: 0h
Time Spent: 10m
> Extra character introduced during Calcite unparsing
> ---------------------------------------------------
>
> Key: BEAM-9169
> URL: https://issues.apache.org/jira/browse/BEAM-9169
> Project: Beam
> Issue Type: Improvement
> Components: dsl-sql-zetasql
> Reporter: Yueyang Qiu
> Assignee: Kirill Kozlov
> Priority: Minor
> Time Spent: 10m
> Remaining Estimate: 0h
>
> When I am testing query string
> {code:java}
> "SELECT STRING(TIMESTAMP \"2008-12-25 15:30:00\", \"America/Los_Angeles\")"{code}
> on BeamZetaSqlCalcRel I found that the second string parameter to the function is unparsed to
> {code:java}
> America\/Los_Angeles{code}
> (note an extra backslash character is added).
> This breaks the ZetaSQL evaluator with error
> {code:java}
> Syntax error: Illegal escape sequence: \/{code}
> From what I can see now this character is introduced during the Calcite unparsing step.
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