Merge pull request dbcli#596 from dbcli/bugfix/alter_destructive

Mark alter as a destructive query

Author: tsroten

changelog.md

@@ -17,6 +17,7 @@ Bug Fixes:
 * Don't crash if the log/history file directories don't exist (Thanks: [Thomas Roten]).
 * Unquote dsn username and password (Thanks: [Dick Marinus]).
 * Output `Password:` prompt to stderr (Thanks: [ushuz]).
+* Mark `alter` as a destructive query (Thanks: [Dick Marinus]).
 
 
 1.16.0:

mycli/packages/parseutils.py

@@ -205,7 +205,7 @@ def queries_start_with(queries, prefixes):
 
 def is_destructive(queries):
     """Returns if any of the queries in *queries* is destructive."""
-    keywords = ('drop', 'shutdown', 'delete', 'truncate')
+    keywords = ('drop', 'shutdown', 'delete', 'truncate', 'alter')
     return queries_start_with(queries, keywords)