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## B.10 `parqlint`: Checks parquet file compliance with VOParquet convention

`parqlint` is a utility to check compliance of parquet files against the VOParquet convention. The checking is currently against version 1.0 of the VOParquet Note.

Specifically, the key-value metadata will be examined for an entry supplying a data-less VOTable document that is supposed to provide additional metadata for the parquet table. Any anomalies in entries within the VOParquet namespace (`IVOA.VOTable-Parquet`) will be reported. If such a data-less VOTable exists, it will be validated for compliance with the VOTable standard (as if by `votlint`) and consistency checks will be made between the columns declared in the parquet data table and the VOTable metadata table.

Any items of interest shown up by these checks will be reported as `INFO`, `WARNING` or `ERROR` messages. Only `ERROR` reports indicate an actual violation of the VOTable standard or VOParquet convention. These reports can be suppressed by category using the `report` parameter.

Note: this command will only work if the parquet support libraries are on the classpath at runtime; depending on how you are running STILTS this may not be the case. See the note at Section 5.1.1.11.

- B.10.1 Usage
- B.10.2 Examples

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STILTS - Starlink Tables Infrastructure Library Tool Set
Starlink User Note256
STILTS web page: http://www.starlink.ac.uk/stilts/
Author email: m.b.taylor@bristol.ac.uk
Mailing list: topcat-user@jiscmail.ac.uk