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Type:
Improvement
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Status: Resolved
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: None
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Fix Version/s: 7.12.x
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Component/s: Spark-HPCC
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Compatibility:Minor
There are 3 use cases: keyed lookups; filtered index reads, and keyed joins.
The keyed lookup will be the equivalent of an index read inside a project transform with a keyed field and optional non-keyed filters. For example, SELF.foo := indx_attr(KEYED(bar=LEFT.my_var) AND extra_field=LEFT.my_extra);
The filtered index read will be the equivalent of a PULL(indx_attr(KEYED(...) AND ...)).
The keyed join will be the equivalent of JOIN(ds, ks, KEYED(...) ..., ...)
The details are covered in the individual JIRA tickets.
- is blocked by
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HPCC-18475 Extend remote filtering to include indexes
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- Resolved
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HPCC-19480 Add keyed lookup and fetch support.
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- Scheduled
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- relates to
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HPCC-19374 Spark use of Keys, keyed lookups
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- Resolved
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HPCC-19375 Spark use of keys: filtered index read
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- Resolved
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HPCC-19376 Spark use of keys: keyed join
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- Resolved
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