Implement LEAD, LAG, FIRST_VALUE, LAST_VALUE window functions#2444
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apoorvdarshan wants to merge 1 commit intoAlaSQL:developfrom
Open
Implement LEAD, LAG, FIRST_VALUE, LAST_VALUE window functions#2444apoorvdarshan wants to merge 1 commit intoAlaSQL:developfrom
apoorvdarshan wants to merge 1 commit intoAlaSQL:developfrom
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…#2409) Add support for SQL:2003 positional window functions with PARTITION BY and ORDER BY. These enable period-over-period comparisons and accessing relative row values within partitions.
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Summary
LEAD(),LAG(),FIRST_VALUE(),LAST_VALUE()(resolves Window Offset Functions (LEAD/LAG/FIRST_VALUE/LAST_VALUE) Not Implemented #2409)PARTITION BYandORDER BYin OVER clauses, with configurable offset and default values for LEAD/LAGTest plan
test/test2409.jspass