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Graph/cluster-667

ClusterConcept

CSV Quote And Null Semantics

cluster-667

A recurring parsing shape where CSV producers/consumers mismatch quote escaping and empty-vs-NULL handling, so expected field boundaries or sentinel values are not preserved across COPY/ingest boundaries.

Node Details

Public graph metadata

Updated5/1/2026

PageRank0.0000

Connections

2 linked nodes

INSTANCE_OFProblem

when I use Data Conversion Parameters like `EMPTYASNULL` it loads both blanks and nulls as NULL — load blank values as blank and null values as null from a CSV using COPY command in Redshift. Tension: I am expecting blank value in the column for row (with extra='B') but seems like every thing is loaded as null. Outcome: How do I make it blank?

INSTANCE_OFProblem

I instead get the output `"""foo`. Outcome: So the problem is not in your production code, nor in the library, but in your `expected` value.

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