Expose sqllogictest Error (#14313)

Author: xudong963

datafusion/sqllogictest/src/engines/datafusion_engine/normalize.rs

@@ -250,7 +250,7 @@ pub fn cell_to_string(col: &ArrayRef, row: usize) -> Result<String> {
 }
 
 /// Converts columns to a result as expected by sqllogicteset.
-pub(crate) fn convert_schema_to_types(columns: &Fields) -> Vec<DFColumnType> {
+pub fn convert_schema_to_types(columns: &Fields) -> Vec<DFColumnType> {
     columns
         .iter()
         .map(|f| f.data_type())

datafusion/sqllogictest/src/engines/mod.rs

@@ -21,6 +21,8 @@ mod datafusion_engine;
 mod output;
 
 pub use datafusion_engine::convert_batches;
+pub use datafusion_engine::convert_schema_to_types;
+pub use datafusion_engine::DFSqlLogicTestError;
 pub use datafusion_engine::DataFusion;
 pub use output::DFColumnType;
 pub use output::DFOutput;

datafusion/sqllogictest/src/lib.rs

@@ -20,8 +20,10 @@
 mod engines;
 
 pub use engines::convert_batches;
+pub use engines::convert_schema_to_types;
 pub use engines::DFColumnType;
 pub use engines::DFOutput;
+pub use engines::DFSqlLogicTestError;
 pub use engines::DataFusion;
 
 #[cfg(feature = "postgres")]