OPAL Verbs By Category¶
Verb |
Description |
|---|---|
Aggregate verbs establish an aggregate context: multiple input rows generate fewer, summarizing, output rows. |
|
Filter verbs select particular rows from the input row set, emitting the matches as output. |
|
Join verbs link multiple datasets together. |
|
Metadata verbs modify the metadata of the dataset and the columns in the dataset, rather than directly acting on the data itself. |
|
Metrics verbs create, aggregate, or normalize time series values. |
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Projection verbs create, remove, or rename columns in a dataset. |
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Semistructured verbs act upon, or produce, arrays or objects that are treated as scalars. |