Update query endpoint to use new pipeline executor #3015
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This commit also adds `logical_operator::predicate_pushdown`.
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Due to incomplete support by the current CI compilers.
The `put` operator is a replacement for both the `extend` and the `replace` operators. It takes as arguments a comma-separated list of assignments. If the assigned-to extractor resolves for the input data replaces all occurences of the field (previously `replace`), and if the extractor does not resolve adds one new field at the end (previously `extend`). `put` is the first operator not to be available in the old pipeline operator framing, and as such is not currently reachable by the user.
dominiklohmann
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Mar 28, 2023
Co-authored-by: Jannis Christopher Köhl <mail@koehl.dev>
The `put` operator is a replacement for both the `extend` and the `replace` operators. It takes as arguments a comma-separated list of assignments. If the assigned-to extractor resolves for the input data replaces all occurences of the field (previously `replace`), and if the extractor does not resolve adds one new field at the end (previously `extend`). `put` is the first operator not to be available in the old pipeline operator framing, and as such is not currently reachable by the user.
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This PR updates the
/queryREST endpoint to use the new pipeline API. This also means that queries are not allowed to start with an expression. Usewhereinstead.It also adds
operator_base::predicate_pushdownsuch that queries such aswhere x == 1 | where y == 2 | head 5are optimized intohead 5, with an additionalx == 1 && y == 2constraint that is passed to the index.