Module relations 

Structs

Column

NamedColumnList

ParsedNamedArgs

Extracts named arguments from pest pairs with duplicate detection and completeness checking.

RelationParsingContext

Parsing context for relations that includes extensions, registry, and optional warning collection

TableName

Traits

RelationParsePair

A trait for parsing relations with full context needed for tree building. This includes extensions, the parsed pair, input children, and output field count.

Functions

build_grouping_fields 🔒

Deduplicates expressions across all sets and produces the AggregateRel’s protobuf fields: a flat deduplicated expression list and per-set Grouping messages with index references into that list.

expect_one_child 🔒

This is a utility function for extracting a single child from the list of children, to be used in the RelationParsePair trait. The RelationParsePair trait passes a Vec of children, because some relations have multiple children - but most accept exactly one child.

i64_literal_expr 🔒

parse_aggregate_measures 🔒

Parses the output section of an aggregate (everything after =>).

parse_expression_list 🔒

Grammar: expression_list = { expression ~ ("," ~ expression)* }

parse_grouping_set 🔒

Parses a single grouping set, e.g. ($0, $1) or _.

parse_grouping_sets 🔒

Parses the grouping section of an aggregate (everything before =>).

parse_reference_emit 🔒

Parse a reference list Pair and return an EmitKind::Emit.