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[FAQ] Session window aggregation fails with “declare primary key for sink table” error

faq-proposal

Status: Open.

#248 In DataTalksClub/faq;

· AsherJD-io opened on Mar 12, 2026

[FAQ] Flink tumbling window job runs but the PostgreSQL table is empty

faq-proposal

Status: Open.

#246 In DataTalksClub/faq;

· AsherJD-io opened on Mar 12, 2026

[FAQ] PyFlink job keeps restarting with JSON deserialization error

faq-proposal

Status: Open.

#244 In DataTalksClub/faq;

· AsherJD-io opened on Mar 12, 2026

[FAQ] How to Inspect Messages in a Kafka Topic Using Offsets

faq-proposal

Status: Open.

#242 In DataTalksClub/faq;

· elcapo opened on Mar 11, 2026

[FAQ] Spark Error When Casting TIMESTAMP_NTZ to BIGINT

faq-proposal

Status: Open.

#240 In DataTalksClub/faq;

· mlpub opened on Mar 8, 2026

[FAQ] Why does Spark write multiple parquet files after repartitioning a dataset?

faq-proposal

Status: Open.

#237 In DataTalksClub/faq;

· AsherJD-io opened on Mar 6, 2026

[FAQ] How can I correctly calculate trip duration using Spark timestamps?

faq-proposal

Status: Open.

#235 In DataTalksClub/faq;

· AsherJD-io opened on Mar 6, 2026

[FAQ] What is the difference between a Spark application, job, stage, and task?

faq-proposal

Status: Open.

#228 In DataTalksClub/faq;

· elcapo opened on Mar 5, 2026

[FAQ] Incomplete data ingestion due to incorrect pagination starting point

faq-proposal

Status: Open.

#225 In DataTalksClub/faq;

· AsherJD-io opened on Mar 3, 2026

[FAQ] Column name from API not found when querying dlt-loaded table

faq-proposal

Status: Open.

#224 In DataTalksClub/faq;

· AsherJD-io opened on Mar 3, 2026

[FAQ] dlt does not create some columns in DuckDB when loading REST API data

faq-proposal

Status: Open.

#222 In DataTalksClub/faq;

· AsherJD-io opened on Mar 3, 2026

[FAQ] How do I generate the AGENTS.md file for Codex in dlt ?

faq-proposal

Status: Open.

#220 In DataTalksClub/faq;

· mlpub opened on Mar 2, 2026