TRL-DLTE

Compositional Data-Lake Table Enrichment suite of TRL-Bench. A 47,772-table data lake derived from 1,379 TabFact and WikiTableQuestions parent tables, fragmented at four cumulative noise tiers (clean / schema / cell / hard). Each parent yields a seed query, a union target (additional rows), and a join target (additional columns); the system must recover both targets from the lake by retrieval, column alignment, and row matching.

This repository ships two configs:

• manifests: lightweight metadata records (109,336 rows, ~900 KB) — every entity in the benchmark (parents, fragments, lake tables, query tasks, distractor IDs, splits, fragmentation config) under a unified (record_type, record_json) schema.
• lake: the full 54,667-table content (1,379 parents + 16,548 fragments [5,516 query_seed + 5,516 target_union + 5,516 target_join] + 36,740 distractors), each with csv_text + structural metadata + provenance keys. The retriever's actual search space is the 47,772-table subset (target_union + target_join + distractor); parents and query seeds are released alongside as pipeline I/O.

manifests schema

{
  "record_type": string,    # "parent" | "fragment" | "lake_table" | "split_assignment" |
                            # "query_task" | "ckan_distractor" | "fragmentation_config" |
                            # "gt_validation"
  "record_json": string,    # JSON-encoded record content
}

Counts:

record_type	rows
lake_table	47,772
ckan_distractor	36,740
fragment	16,548
query_task	5,516
parent	1,379
split_assignment	1,379
fragmentation_config	1
gt_validation	1

lake schema

{
  "table_id": string,
  "kind": string,           # "parent_tabfact" | "parent_wtq" | "target_union" |
                            # "target_join" | "query_seed" | "distractor"
  "parent_id": string,      # empty for distractors
  "parent_source": string,  # "tabfact" | "wtq" | ""
  "noise_tier": int32,      # 0/1/2/3 for fragments; -1 for parents/distractors
  "fragment_type": string,  # "seed" | "union" | "join" | ""
  "split": string,          # "train" | "dev" | "test" | "" (distractors are unsplit)
  "csv_text": string,       # raw CSV content
  "n_rows": int32,
  "n_cols": int32,
}

Quickstart

from datasets import load_dataset
import json

# Manifests (structural metadata)
m = load_dataset("logo-lab/trl-dlte", "manifests")
print(m["train"]["record_type"][:5])
parents = m["train"].filter(lambda x: x["record_type"] == "parent")
print(json.loads(parents[0]["record_json"]))   # full parent record dict

# Lake content
lake = load_dataset("logo-lab/trl-dlte", "lake")
parents = lake["train"].filter(lambda x: x["kind"].startswith("parent_"))
distractors = lake["train"].filter(lambda x: x["kind"] == "distractor")
union_targets = lake["train"].filter(lambda x: x["kind"] == "target_union")

License

Umbrella CC-BY-SA-4.0 (driven by 390 WTQ-derived parents). Per-component licenses in LICENSES.md. Manifest records and the fragmentation config are TRL-Bench-derived under CC-BY-4.0; the lake content inherits per-source upstream licenses (TabFact: CC-BY 4.0; WTQ: CC-BY-SA 4.0; CKAN distractors: CC-BY 4.0 record / per-portal upstream).