quantlab.acquisition.massive.raw_tier.write_day_file_watermark#

quantlab.acquisition.massive.raw_tier.write_day_file_watermark(vendor_root, data_type, through)[source]#

Record that a data type’s downloads are complete through through.

Read back by quantlab.dataset.massive.raw.read_watermark.

Examples

Writes /data/quantlab/downloads/massive/trades/_watermark.json:

write_day_file_watermark("/data/quantlab/downloads/massive", "trades", date(2024, 11, 29))