Extract Tableau join clauses from <relation type="join"> nodes — extract_joins • twbparser

Handles both column-based clauses (<clause><column/></clause>) and expression-based predicates (<expression op=...>) found in TWB XML.

Usage

extract_joins(xml_doc)

Arguments

xml_doc: An xml2 document for a Tableau .twb.

Value

A tibble with columns:

join_type: Join kind (e.g., inner, left), if available.
left_table: Left table name (cleaned).
left_field: Left field name.
operator: Predicate operator (defaults to "=" when missing).
right_table: Right table name (cleaned).
right_field: Right field name.

Examples

if (FALSE) { # \dontrun{
xml <- xml2::read_xml("inst/extdata/sample.twb")
extract_joins(xml)
} # }