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Market-data lake

lake.quarterly_earnings dataset schema

Column types and research semantics for NexusTrade’s lake.quarterly_earnings dataset. Read the supported schema before submitting a bounded SQL query.

Query name
lake.quarterly_earnings
Storage partition
year
Columns
7
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Columns and types

VARCHAR

  • ticker
  • symbol

TIMESTAMP

  • date

DOUBLE

  • epsActual
  • epsEstimate
  • epsDifference
  • surprisePercent

Current logical schema for lake.quarterly_earnings

Inspect the complete lake.quarterly_earnings schema
ColumnType
tickerVARCHAR
symbolVARCHAR
dateTIMESTAMP
epsActualDOUBLE
epsEstimateDOUBLE
epsDifferenceDOUBLE
surprisePercentDOUBLE

Current logical schema for lake.quarterly_earnings

Query lake.quarterly_earnings using the column names and types below. The query validator and engine use this logical catalog; a field absent from an older shard returns typed NULL.

What this table contains

Legacy/vendor quarterly earnings. Prefer sec_quarterly_earnings, which is SEC-sourced.

Keep this table for compatibility with an existing query. Start a new task with the linked preferred schema.

Bounded quarterly earnings preview

Query example, not executed here. Inspect the actual returned rows and dates before treating it as evidence.

This compatibility preview uses the declared fields. Prefer the linked current reference for a new research task.

SQL
SELECT "ticker", "symbol", "date", "epsActual", "epsEstimate"
FROM lake.quarterly_earnings
WHERE "ticker" IN ('AAPL')
ORDER BY "ticker", "symbol", "date", "epsActual", "epsEstimate"
LIMIT 20;

Submit the quarterly_earnings example and read back its parts

Run the exact SQL through the Python SDK

Save this page's SQL as query.sql and the runner below as query.py. Use a registered key with lake scope from Developers. The runner submits the displayed quarterly_earnings query once, saves its operation, waits on that same ID, saves the returned manifest and downloads its Parquet parts.

This submission has not been executed for the reference page. Inspect the SQL, dates and resource limits before running it. Reuse the request key only for this identical SQL and limits; use a new key when changing them.

Shell
python3 -m pip install nexustrade==1.42.0
export NEXUSTRADE_API_KEY="YOUR_LAKE_SCOPED_KEY"
python3 query.py

Python
import json
from pathlib import Path
from nexustrade import NexusTradeClient

# Save the SQL displayed on this page as query.sql.
sql = Path("query.sql").read_text()
client = NexusTradeClient.from_environment()
operation = client.create_lake_query(
    {"query": sql, "limits": {"timeoutSeconds": 30, "maxRows": 50,
                              "maxResultBytes": 1048576}},
    idempotency_key="reference-quarterly_earnings-20261012-v1",
)
Path("query-operation.json").write_text(json.dumps(operation, indent=2))
finished = client.wait_for_lake_query(operation["id"])
if finished["status"] != "completed":
    raise RuntimeError(finished)
manifest = client.get_lake_query_manifest(operation["id"])["result"]
Path("query-manifest.json").write_text(json.dumps(manifest, indent=2))
print(json.dumps(manifest, indent=2))
for part in manifest["parts"]:
    Path(f"query-{part['part']}.parquet").write_bytes(
        client.download_lake_query_part(operation["id"], part["part"], max_bytes=1048576)
    )

Coverage and timing

Inspect source coverage and timing before using the rows

Legacy/vendor quarterly earnings. Prefer sec_quarterly_earnings, which is SEC-sourced.

Inspect the returned source dates and nullable fields. For an event-based strategy, use its public availability date to place the observation on the research timeline.

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