Qingyang Feng created CALCITE-4750:
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Summary: derive the table structurt
Key: CALCITE-4750
URL: https://issues.apache.org/jira/browse/CALCITE-4750
Project: Calcite
Issue Type: Wish
Components: core
Affects Versions: 1.20.0
Reporter: Qingyang Feng
I want to derive the table structure from the insert statement.
For example,
insert into table2 select field1, field2 from table1;
Derive the table structure of table2 from table1.
The performUnconditionalRewrites method in SqlValidatorImpl can obtain the
table structure from the insert statement when verifying SQL statements.
However, the method is a private method. Therefore, I have to obtain the table
structure through reflection. Is there a more convenient way to do that?
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