OPAL Verbs By Category¶
Verb |
Description |
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Aggregate verbs establish an aggregate context. Multiple input rows generate fewer, summarizing, output rows. |
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Filter verbs select particular rows from the input row set, emitting the matches as output. |
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Join verbs link multiple Datasets together. |
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Metadata verbs modify the metadata of the Dataset and the columns in the Dataset, rather than directly acting on the Dataset. |
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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 treated as scalars. |