Module ast 

Query engine module

SQL-like query parsing, planning, and execution. Abstract Syntax Tree types

Structs

FromClause

FROM clause specifying tables

GroupByClause

GROUP BY clause for aggregation

HavingClause

HAVING clause for filtering grouped results

Join

JOIN clause

LimitClause

LIMIT clause for result limiting

OrderByClause

ORDER BY clause for sorting

OrderByColumn

A column in ORDER BY

Query

A complete SQL-like query

SelectClause

SELECT clause specifying columns to retrieve

WhereClause

WHERE clause for filtering

Enums

AggregateFunction

Aggregate functions

BinaryOperator

Binary comparison operators

Expression

Boolean expression for WHERE and JOIN conditions

JoinType

Types of joins

Literal

Literal values in queries

LogicalOperator

Logical operators

OrderDirection

Sort direction

SelectColumn

A column in the SELECT clause