Added support for Query Defined Tables (Sub-Queries) #1
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Added a function to support iterating through sub-queries to identify table references when sub-queries are used as table definitions. Modified if statement to identify when this was the case and call the function to recursively go through the references. This worked on some of the example use cases I had where sub-queries were used in From statements. I have not extensively tested this functionality. I had not previously used functions to use recursion like this but used the example already there as an example.
…eReference-1 Add support for QueryDefinedTables
Example for when a QueryDefinedTable is used.
…eExample-1 Create QueryDefinedTable.sql
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In order to support my own uses for this, I needed to be able to correctly examine SQL files that had sub-queries as FROM statements. In order to support this, I added a function to recursively go through the object to find the first table reference within any number of nested sub-queries. I also provided an example file. I have only tested this on SQL code examples I have available, so I am not sure if this introduces issues with other valid SQL or not.