Function resolveResTarget

src/postgres/resolve-references.ts:106–128

(
  path: QueryNodePath<QueryParser.ResTarget>,
  relationRefs: Array<QueryNodePath<QueryParser.RelationRef>>
)

}

export function resolveResTarget(
  path: QueryNodePath<QueryParser.ResTarget>,
  relationRefs: Array<QueryNodePath<QueryParser.RelationRef>>
): ColumnReference | null {
  const { name, val } = path.node.ResTarget

  if (name) {
    const tableRefsInScope: TableReference[] = relationRefs.map(ref => ({
      as: ref.node.RangeVar.alias ? ref.node.RangeVar.alias.Alias.aliasname : undefined,
      tableName: ref.node.RangeVar.relname,
      path
    }))
    return {
      tableRefsInScope: filterDuplicateTableRefs(tableRefsInScope),
      columnName: name,
      path
    }
  } else if (isColumnRef(val)) {
    return resolveColumnReference(createQueryNodeSubpath(path, val, "val"), relationRefs)
  } else {
    return null
  }
}