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runner.rst

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Runner

LineageRunner is the entry point for SQLLineage core processing logic. After parsing command-line options, a string representation of SQL statements will be fed to LineageRunner for processing. From a bird's-eye view, it contains three steps:

  1. Calling sqllineage.utils.helpers.split function to split string-base SQL statements into a list of str statements.
  2. Calling :class:`sqllineage.core.analyzer.LineageAnalyzer` to analyze each one statement sql string. Get a list of :class:`sqllineage.core.holders.StatementLineageHolder` .
  3. Calling :class:`sqllineage.core.holders.SQLLineageHolder.of` function to assemble the list of :class:`sqllineage.core.holders.StatementLineageHolder` into one :class:`sqllineage.core.holders.SQLLineageHolder`.

:class:`sqllineage.core.holders.SQLLineageHolder` then will serve for lineage summary, in text or in visualization form.

sqllineage.runner.LineageRunner

.. autoclass:: sqllineage.runner.LineageRunner
    :members:
    :special-members: __str__

sqllineage.cli.main

.. autofunction:: sqllineage.cli.main