feat: add some table aliases for lance,iceberg and delta

crates/sqlbuiltins/src/functions/table/delta.rs

@@ -27,6 +27,7 @@ impl ConstBuiltinFunction for DeltaScan {
     const DESCRIPTION: &'static str = "Scans a delta table";
     const EXAMPLE: &'static str = "SELECT * FROM delta_scan('file:///path/to/table')";
     const FUNCTION_TYPE: FunctionType = FunctionType::TableReturning;
+    const ALIASES: &'static [&'static str] = &["read_delta"];
 }
 
 #[async_trait]

crates/sqlbuiltins/src/functions/table/iceberg/scan.rs

@@ -21,6 +21,7 @@ impl ConstBuiltinFunction for IcebergScan {
     const DESCRIPTION: &'static str = "Scans an iceberg table";
     const EXAMPLE: &'static str = "SELECT * FROM iceberg_scan('file:///path/to/table')";
     const FUNCTION_TYPE: FunctionType = FunctionType::TableReturning;
+    const ALIASES: &'static [&'static str] = &["read_iceberg"];
 }
 
 #[async_trait]

crates/sqlbuiltins/src/functions/table/lance.rs

@@ -27,6 +27,7 @@ impl ConstBuiltinFunction for LanceScan {
     const DESCRIPTION: &'static str = "Scans a Lance table";
     const EXAMPLE: &'static str = "SELECT * FROM lance_scan('file:///path/to/table.lance')";
     const FUNCTION_TYPE: FunctionType = FunctionType::TableReturning;
+    const ALIASES: &'static [&'static str] = &["read_lance"];
 }
 
 #[async_trait]

testdata/sqllogictests/functions/delta_scan.slt

@@ -21,3 +21,11 @@ select * from delta_scan('./testdata/delta/table1/') order by a;
 1   hello
 2   world
 
+
+
+# aliases
+query IT
+select * from read_delta('file://${PWD}/testdata/delta/table1/') order by a;
+----
+1   hello
+2   world

testdata/sqllogictests_iceberg/local_v2.slt

@@ -10,3 +10,9 @@ select count(*) = 1000
   from iceberg_scan('./testdata/iceberg/tables/lineitem_simple_longversion');
 ----
 t
+
+query T
+select count(*) = 1000
+  from read_iceberg('./testdata/iceberg/tables/lineitem_simple_longversion');
+----
+t

testdata/sqllogictests_object_store/local/lance.slt

@@ -28,6 +28,14 @@ select * from lance_scan('file://${TMP}') order by point.lat;
 [0.2, 1.8] {lat:42.1,long:-74.1}
 [1.1, 1.2] {lat:45.5,long:-122.7}
 
+# alias 
+query IT
+select * from read_lance('file://${TMP}') order by point.lat;
+----
+[0.2, 1.8] {lat:42.1,long:-74.1}
+[1.1, 1.2] {lat:45.5,long:-122.7}
+
+
 statement ok
 copy (select * from lance_tbl) to '${TMP}' format lance;