Write Primitives merge_scd_type2_basic

Write Primitives benchmark · all Write Primitives queries

Representative SQL

Rendered in the benchmark’s native SQL with default parameters (no dialect translation available).

UPDATE scd2_ops_dim_customer SET is_current = FALSE, valid_to = (
  SELECT
    MIN(s.effective_ts)
  FROM scd2_ops_stage_customer AS s
  WHERE
    s.c_custkey = scd2_ops_dim_customer.c_custkey AND s.change_type = 'changed'
)
WHERE
  scd2_ops_dim_customer.is_current = TRUE
  AND EXISTS(
    SELECT
      1
    FROM scd2_ops_stage_customer AS s
    WHERE
      s.c_custkey = scd2_ops_dim_customer.c_custkey
      AND s.change_type = 'changed'
      AND s.row_hash <> scd2_ops_dim_customer.row_hash
  )

Representative DataFrame

No DataFrame implementation is registered for this query.

Get the exact query for your run

The blocks above are representative. To get the precise statement a specific platform runs at a specific scale, substitute your own values:

from benchbox import WritePrimitives

bench = WritePrimitives(scale_factor=0.01)            # your scale factor
print(bench.get_queries()['merge_scd_type2_basic'])

Source

Query text: benchbox/core/write_primitives/operations.py