Module structural 

Parser for the structural part of the Substrait file format.

This is the overall parser for parsing the text format. It is responsible for tracking which section of the file we are currently parsing, and parsing each line separately.

Structs

AdvExt

An advanced-extension annotation (+ Enh:Name[args] or + Opt:Name[args]) that is attached to a relation node. The pair holds the adv_extension grammar rule directly (already unwrapped from the outer planNode).

IndentedLine

Represents an input line, trimmed of leading two-space indents and final whitespace. Contains the number of indents and the trimmed line.

Parser

A parser for Substrait query plans in text format.

RelationContext 🔒

Intermediate state for relation parsing: the structural tree data (children, addenda) has been processed into proto types, but the relation’s own grammar pair hasn’t been parsed yet.

RelationNode

A relation node in the plan tree, before conversion to a Substrait proto.

RelationParser

TreeBuilder

Enums

LineNode

A parsed plan line: either a relation or an advanced extension (+-prefixed line).

State

Constants

PLAN_HEADER