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Brandon Chong commented on CALCITE-5268: ---------------------------------------- Yes the PR is ready for review again :) > Add QUALIFY clause > ------------------ > > Key: CALCITE-5268 > URL: https://issues.apache.org/jira/browse/CALCITE-5268 > Project: Calcite > Issue Type: New Feature > Reporter: Brandon Chong > Assignee: Brandon Chong > Priority: Major > Labels: pull-request-available > Time Spent: 40m > Remaining Estimate: 0h > > {{QUALIFY}} is to Window functions what {{HAVING}} is to {{GROUP BY}}. > For example: > {code} > SELECT a, b, c, ROW_NUMBER() OVER (PARTITION BY b ORDER BY c) as row_num > FROM t1 > QUALIFY row_num = 1 > {code} > Is the same as: > {code} > SELECT * > FROM ( > SELECT a, b, c, ROW_NUMBER() OVER (PARTITION BY b ORDER BY c) as row_num > FROM t1) > WHERE row_num = 1 > {code} -- This message was sent by Atlassian Jira (v8.20.10#820010)