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Parallel scan in Full Table strategy #46

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Parallel scan in Full Table strategy #46

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10 changes: 10 additions & 0 deletions tap_dynamodb/sync_strategies/full_table.py
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Original file line number Diff line number Diff line change
Expand Up @@ -13,10 +13,20 @@ def scan_table(table_name, projection, expression, last_evaluated_key, config):
'''
Get all the records of the table by using `scan()` method with projection expression parameters
'''

# parallelize large scans
parallel_segment = config.get("parallel_segment", None)
parallel_totalsegments = config.get("parallel_totalsegments", None)

scan_params = {
'TableName': table_name,
'Limit': 1000
}

# add the parallel segment and the total number of segments in the parameters to the `scan`
if parallel_segment and parallel_totalsegments:
scan_params["Segment"] = int(parallel_segment)
scan_params["TotalSegments"] = int(parallel_totalsegments)

# add the projection expression in the parameters to the `scan`
if projection is not None and projection != '':
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