ESQL: Allow FIRST and LAST as method name #132469
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This modifies the ESQL grammar to allow FIRST and LAST as identifiers. We're going to make functions called that. Relates to elastic#108385
elasticsearchmachine
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Team:Analytics
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Pinging @elastic/es-analytical-engine (Team:Analytics) |
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Another option is to make |
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The alternative is #132474 |
| : UNQUOTED_IDENTIFIER | ||
| | QUOTED_IDENTIFIER | ||
| | FIRST | ||
| | LAST |
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Is it worth restricting FIRST/LAST to only a function name opposed to any identifier? Although somebody might want to use | EVAL first=first(column, @timestamp). Not sure.
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Hey, I think we're adding this bit of grammar in the wrong place, see my comment below.
Additionally, the PR description mentions the syntax FIRST(v BY @timestamp). Having BY inside the function is also new grammar. Do we need this, or could we start with just FIRST(v, @timestamp) and decide later if/how functions should be extended to use the BY keyword in their arguments?
…o allow_function_named_first
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This one's ready for another look, @alex-spies and @idegtiarenko . |
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Thanks @alex-spies and @idegtiarenko . |
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| private String functionName(EsqlBaseParser.FunctionNameContext ctx) { | ||
| TerminalNode first = ctx.LAST(); |
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Looks like this should be
| TerminalNode first = ctx.LAST(); | |
| TerminalNode first = ctx.FIRST(); |
I made a mistake in elastic#132469
…cking * upstream/main: (24 commits) Revert "[Fleet] add privileges to `kibana_system` to read integrations data (elastic#132400)" (elastic#132499) ESQL: Rename evaluators for FIRST and LAST (elastic#132466) Add inference fields to semantic text docs (elastic#132471) ESQL: Allow FIRST and LAST as method name (elastic#132469) ESQL: Add javadoc for PushDownAndCombineFilters (elastic#132484) Misc cleanups in Coordinator (elastic#132452) [DiskBBQ] Write the maximum posting list size to avoid resizing the docId array (elastic#132447) Improve exception handling for JsonXContentParser (elastic#123439) Clarify quantization on semantic_text BBQ dense vector default (elastic#132470) Fix test infra NPE in doEnsureClusterStateConsistency (elastic#131859) Stabilize CancellableTasksIT#testRemoveBanParentsOnDisconnect (elastic#131858) Move ClusterApplierService assertion after logging exception (elastic#132446) ESQL: Support for multi-argument aggs (elastic#132424) Update wolfi (versioned) (elastic#132457) ESQL: Fix Function javadoc (elastic#132399) [ML] Inference API disable partial search results (elastic#132362) Unmute testTermsQuery tests (elastic#132409) Fix index lookup when field-caps returns empty mapping (elastic#132138) CompressorFactory.compressor (elastic#132448) ESQL add formatting to plans in javadoc (elastic#132421) ...
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This modifies the ESQL grammar to allow FIRST and LAST as identifiers. We're going to make functions called that.
Relates to #108385