on each successfull exit, do a little db maintainance...

ui/medashare/cli.py

@@ -57,7 +57,7 @@ import re
 import shutil
 import socket
 import sqlalchemy
-from sqlalchemy import create_engine, select, insert, func, delete
+from sqlalchemy import create_engine, select, insert, func, delete, text
 from sqlalchemy.orm import sessionmaker, aliased, load_only
 import string
 import subprocess
@@ -925,7 +925,14 @@ def init_datastructs(f):
 		cache = TagCache.load(cachefname)
 
 		try:
-			return f(options, persona, objstr, cache)
+			r = f(options, persona, objstr, cache)
+
+			# per: https://www.sqlite.org/lang_analyze.html
+			with engine.connect() as con:
+				con.execute(text('PRAGMA analysis_limit = 400;'))
+				con.execute(text('PRAGMA optimize;'))
+				con.commit()
+			return r
 		finally:
 			if cache.modified:
 				cache.store(cachefname)