Jefffrey commented on code in PR #19339:
URL: https://github.com/apache/datafusion/pull/19339#discussion_r2674610631
##########
datafusion/sql/tests/sql_integration.rs:
##########
@@ -4522,6 +4522,42 @@ fn test_parse_escaped_string_literal_value() {
);
}
+#[test]
+fn test_parse_quoted_column_name_with_at_sign() {
+ let sql = r"SELECT `@column` FROM `@quoted_identifier_names_table`";
+ let plan = logical_plan(sql).unwrap();
+ assert_snapshot!(
+ plan,
+ @r#"
+ Projection: @quoted_identifier_names_table.@column
+ TableScan: @quoted_identifier_names_table
+ "#
+ );
+
+ let sql = r"SELECT `@quoted_identifier_names_table`.`@column` FROM
`@quoted_identifier_names_table`";
+ let plan = logical_plan(sql).unwrap();
+ assert_snapshot!(
+ plan,
+ @r#"
+ Projection: @quoted_identifier_names_table.@column
+ TableScan: @quoted_identifier_names_table
+ "#
+ );
+}
+
+#[test]
+fn test_variable_identifier() {
+ let sql = r"SELECT @variable = t_date32 FROM test";
+ let plan = logical_plan(sql).unwrap();
+ assert_snapshot!(
+ plan,
+ @r#"
+ Projection: @variable = test.t_date32
Review Comment:
The output doesn't seem to have a way to indicate if this was parsed as a
variable or identifier? I wonder if there is a way to make this difference more
obvious 🤔
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