Description
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.
Attachments
Issue Links
- is related to
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CALCITE-963 Hoist literals
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- Open
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