add split dbs info

Author: chapmanjacobd

.github/README.md

@@ -284,8 +284,14 @@ To stop playing press Ctrl+C in either the terminal or mpv
 
     library fsadd --audio audiobooks.db ./audiobooks/
     library fsadd --audio podcasts.db ./podcasts/ ./another/more/secret/podcasts_folder/
+
+    # merge later if you want
     library merge-dbs --pk path -t playlists,media both.db audiobooks.db podcasts.db
 
+    # or split
+    library merge-dbs --pk path -t playlists,media audiobooks.db both.db -w 'path like "%/audiobooks/%"'
+    library merge-dbs --pk path -t playlists,media podcasts.db both.db -w 'path like "%/podcasts%"'
+
 ## Guides
 
 ### Music alarm clock
@@ -2368,6 +2374,10 @@ BTW, for some cols like time_deleted you'll need to specify a where clause so th
 
      To skip copying primary-keys from the source table(s) use --business-keys instead of --primary-keys
 
+     Split DBs using --where
+
+         library merge-dbs --pk path specific-site.db big.db -v --only-new-rows -t media,playlists -w 'path like "https://specific-site%"'
+
 
 </details>
 

xklb/readme.py

@@ -157,8 +157,14 @@
 
     library fsadd --audio audiobooks.db ./audiobooks/
     library fsadd --audio podcasts.db ./podcasts/ ./another/more/secret/podcasts_folder/
+
+    # merge later if you want
     library merge-dbs --pk path -t playlists,media both.db audiobooks.db podcasts.db
 
+    # or split
+    library merge-dbs --pk path -t playlists,media audiobooks.db both.db -w 'path like "%/audiobooks/%"'
+    library merge-dbs --pk path -t playlists,media podcasts.db both.db -w 'path like "%/podcasts%"'
+
 ## Guides
 
 ### Music alarm clock

xklb/usage.py

@@ -1096,6 +1096,10 @@ def play(action) -> str:
         library merge-dbs --only-new-rows --pk subreddit,path --only-tables reddit_posts reddit/81_New_Music.db audio.db -v
 
      To skip copying primary-keys from the source table(s) use --business-keys instead of --primary-keys
+
+     Split DBs using --where
+
+         library merge-dbs --pk path specific-site.db big.db -v --only-new-rows -t media,playlists -w 'path like "https://specific-site%"'
 """
 
 merge_folders = """library merge-folders [--replace] [--skip] [--simulate] SOURCES ... DESTINATION