select_lt() respects empty arguments

CHANGELOG.md

@@ -1,5 +1,8 @@
 # CHANGELOG
 
+* **2024.06.28    tSQLike-1.0.3**
+  * `select_lt()` respects empty arguments
+
 * **2024.06.24    tSQLike-1.0.3**
   * `write_json()` defaults to `export_f='export_list_dicts()'`
   * `read_json()` implemented as a standalone function

tsqlike/__about__.py

@@ -1,3 +1,3 @@
 """ Version number in a single place """
 
-__version__ = "1.0.3"
+__version__ = "1.0.4"

tsqlike/tsqlike.py

@@ -621,14 +621,19 @@ def select_lt(self, columns='*', where='', comp='==', val='', new_tname=''):
 
         r_table = [[]]
         r_columns = []
-        columns = self.header if columns == '*' else columns.split(',')
-        scol_idx = self.header.index(where)
+        columns = self.header if columns in ('*', '') else columns.split(',')
 
         for column in self.header:
             if column in columns:
                 r_table[0].append(column)
                 r_columns.append(self.header.index(column))
 
+        if not where or not comp or not val:
+            return Table(name=new_tname if new_tname else
+                         self.name + TNAME_TNAME_DELIMITER + str(self.timestamp),
+                         data=r_table + [[r[c] for c in r_columns] for r in self.table])
+
+        scol_idx = self.header.index(where)
         return Table(name=new_tname if new_tname else
                      self.name + TNAME_TNAME_DELIMITER + str(self.timestamp),
                      data=r_table + [[r[c] for c in r_columns]