yoavcloud commented on code in PR #1912:
URL:
https://github.com/apache/datafusion-sqlparser-rs/pull/1912#discussion_r2177485063
##########
src/dialect/mod.rs:
##########
@@ -1060,6 +1060,22 @@ pub trait Dialect: Debug + Any {
fn supports_space_separated_column_options(&self) -> bool {
false
}
+
+ /// Returns true if the dialect supports `ALTER TABLE tbl ALTER COLUMN col
TYPE <type>`
+ /// without specifying `SET DATA` before `TYPE`.
+ ///
+ /// -
[Redshift](https://docs.aws.amazon.com/redshift/latest/dg/r_ALTER_TABLE.html#r_ALTER_TABLE-synopsis)
+ /// -
[PostgreSQL](https://www.postgresql.org/docs/current/sql-altertable.html)
+ fn supports_alter_column_type_without_set(&self) -> bool {
Review Comment:
Yes that is an option. I hesitated a bit because saw specific negative
tests, and did not want to break anything.
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