Module index_attribute 

Parsing for the model-level @@index([...], using: ..., opclass: "...", where: "...") attribute (cratestack#156, cratestack#742) — a general secondary index, optionally naming a non-default Postgres access method (e.g. ivfflat/hnsw for pgvector approximate-nearest-neighbor search), operator class, and a partial-index predicate.

Shares its bracketed-field-list syntax with @@id([...])/ @@unique([...]) (see [super::field_list]), but unlike those, @@index(...) also accepts trailing using:/opclass:/where: keyword arguments after the field list — the same shape @relation(fields:[...], references:[...]) already uses (cratestack-parser::relation_helpers::parse_relation_attribute), reimplemented here (via [super::attribute_syntax], shared with @@unique([...], where: "...")) rather than shared with the parser crate’s own copy because that helper is private to the parser crate and this one also needs to be callable from cratestack-migrate (via crate::schema::project_model, one layer below the parser).

Structs

ParsedIndexAttribute

The parsed shape of an @@index([...], using: ..., opclass: "...", where: "...") attribute.

Functions

parse_index_attribute

Parses @@index([field1, field2, ...]), optionally followed by using: <method>, opclass: "<name>", and/or where: "<predicate>". Callers are responsible for checking that each field name resolves to a real scalar field on the model.