Julian Hyde created CALCITE-4087:
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Summary: Hoist, a utility to replace literals in a SQL string with
placeholders
Key: CALCITE-4087
URL: https://issues.apache.org/jira/browse/CALCITE-4087
Project: Calcite
Issue Type: New Feature
Components: babel
Affects Versions: 1.23.0
Reporter: Julian Hyde
Add "Hoist", a utility to replace literals in a SQL string with placeholders.
By default it uses Calcite's parser, but you can configure to use different
quoting, casing, and also to use a different parser such as Babel for other
dialects of SQL.
It generates a data structure, {{Hoisted}}, that contains a map of where the
literals occur within the SQL string. The Hoisted.substitute method generates
an alternative SQL string, replacing the literals with a custom string.
It does not call {{SqlNode.unparse}}, and therefore does not lose any of the
original formatting.
For more examples, see tests added to {{SqlParserTest}} and {{BabelParserTest}}.
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