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TS_MODIFY

Short Description

Modifying a time series collection

Detailed Description​

TS_MODIFY is an execution stage in MongoDB explain plans that is related to operations on time series collections.

In simple terms:

  • TS_MODIFY stands for "Time Series Modify."
  • This stage appears when MongoDB is updating or deleting measurements in a time series collection, which is a special type of collection optimized for handling time-stamped data (such as metrics, events, or logs).
  • TS_MODIFY is responsible for modifying data within the internal "buckets" structure that time series collections use.

When do you see TS_MODIFY?

  • Any time you run an update or delete operation on a time series collection, you might see TS_MODIFY in the explain plan.

Summary:

TS_MODIFY means MongoDB is efficiently updating or deleting entries inside a time series collection’s buckets, using special logic tailored for time-stamped data. This stage only occurs with time series collections.

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