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dataset measure

[Plumbing] Collect statistics about the relations in a particulardataset.

Who can use this feature?

CodeQL is available for the following repository types:

Note

This content describes the most recent release of the CodeQL CLI. For more information about this release, seehttps://github.com/github/codeql-cli-binaries/releases.

To see details of the options available for this command in an earlier release, run the command with the--help option in your terminal.

Synopsis

Shell
codeql dataset measure --output=<file> [--threads=<num>] <options>... -- <dataset>

Description

[Plumbing] Collect statistics about the relations in a particulardataset.

This command is typically only used when developing a CodeQL extractor,after a change that affects the database schema and which thereforeneeds to have an accompanying change to the statistics used by the queryoptimizer.

Options

Primary Options

<dataset>

[Mandatory] Path to the raw QL dataset to measure.

-o, --output=<file>

[Mandatory] The output file to which statistics should be written,typically with a '.dbscheme.stats' extension.

-j, --threads=<num>

The number of concurrent threads to use.

Defaults to 1. You can pass 0 to use one thread per core on the machine,or -N to leaveN cores unused (except still use at least onethread).

Common options

-h, --help

Show this help text.

-J=<opt>

[Advanced] Give option to the JVM running the command.

(Beware that options containing spaces will not be handled correctly.)

-v, --verbose

Incrementally increase the number of progress messages printed.

-q, --quiet

Incrementally decrease the number of progress messages printed.

--verbosity=<level>

[Advanced] Explicitly set the verbosity level to one of errors,warnings, progress, progress+, progress++, progress+++. Overrides-vand-q.

--logdir=<dir>

[Advanced] Write detailed logs to one or more files in the givendirectory, with generated names that include timestamps and the name ofthe running subcommand.

(To write a log file with a name you have full control over, insteadgive--log-to-stderr and redirect stderr as desired.)

--common-caches=<dir>

[Advanced] Controls the location of cached data on disk that willpersist between several runs of the CLI, such as downloaded QL packs andcompiled query plans. If not set explicitly, this defaults to adirectory named.codeql in the user's home directory; it will becreated if it doesn't already exist.

Available sincev2.15.2.


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