OHDSI / OHDSI/DatabaseConnector

Running out of memory when pushing Andromeda tables to external databases using bulk import

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bug
Dominant language
R
Stars
57
Forks
93
Avg merge
10d 12h
Merged PRs (30d)
1

Description

Noticed while trying to push the concept_relationship table to Postgres. It probably has to with writing the Andromeda table to CSV prior to calling the PG bulk upload tool

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First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the attempt to push the concept_relationship Andromeda table to Postgres using bulk import. Inspect the path that writes the Andromeda table to CSV before calling the PostgreSQL bulk upload tool. Done means the import completes without running out of memory.

Written by the indexing model from the issue text.

Assessment

Tech stack
postgresql, r
Domain
databases
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
38/100

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