1 files changed, 81 insertions, 0 deletions
diff --git a/sqlglot/executor/table.py b/sqlglot/executor/table.py
new file mode 100644
index 0000000..6df49f7
--- /dev/null
+++ b/sqlglot/executor/table.py
@@ -0,0 +1,81 @@
+class Table:
+    def __init__(self, *columns, rows=None):
+        self.columns = tuple(columns if isinstance(columns[0], str) else columns[0])
+        self.rows = rows or []
+        if rows:
+            assert len(rows[0]) == len(self.columns)
+        self.reader = RowReader(self.columns)
+        self.range_reader = RangeReader(self)
+
+    def append(self, row):
+        assert len(row) == len(self.columns)
+        self.rows.append(row)
+
+    def pop(self):
+        self.rows.pop()
+
+    @property
+    def width(self):
+        return len(self.columns)
+
+    def __len__(self):
+        return len(self.rows)
+
+    def __iter__(self):
+        return TableIter(self)
+
+    def __getitem__(self, index):
+        self.reader.row = self.rows[index]
+        return self.reader
+
+    def __repr__(self):
+        widths = {column: len(column) for column in self.columns}
+        lines = [" ".join(column for column in self.columns)]
+
+        for i, row in enumerate(self):
+            if i > 10:
+                break
+
+            lines.append(
+                " ".join(
+                    str(row[column]).rjust(widths[column])[0 : widths[column]]
+                    for column in self.columns
+                )
+            )
+        return "\n".join(lines)
+
+
+class TableIter:
+    def __init__(self, table):
+        self.table = table
+        self.index = -1
+
+    def __iter__(self):
+        return self
+
+    def __next__(self):
+        self.index += 1
+        if self.index < len(self.table):
+            return self.table[self.index]
+        raise StopIteration
+
+
+class RangeReader:
+    def __init__(self, table):
+        self.table = table
+        self.range = range(0)
+
+    def __len__(self):
+        return len(self.range)
+
+    def __getitem__(self, column):
+        return (self.table[i][column] for i in self.range)
+
+
+class RowReader:
+    def __init__(self, columns):
+        self.columns = {column: i for i, column in enumerate(columns)}
+        self.row = None
+
+    def __getitem__(self, column):
+        return self.row[self.columns[column]]