diff --git a/nomen/main.py b/nomen/main.py
index 03936b7..fe33fbf 100644
--- a/nomen/main.py
+++ b/nomen/main.py
@@ -36,7 +36,7 @@ else:
 
 TOKEN = os.getenv("TOKEN")
 DB_FILE = os.getenv("DB_FILE") or "nomen.sqlite3"
-DEFAULT_PREFIX = os.getenv("DEFAULT_PREFIX") or ">"
+DEFAULT_PREFIX = os.getenv("DEFAULT_PREFIX") or ">>"
 
 
 async def get_prefix(the_bot, message: Message):
@@ -79,7 +79,11 @@ class Nomen(Bot):
         return prefix
 
     async def set_guild_prefix(self, guild: Guild, prefix):
-        await self.db.execute("UPDATE guilds SET prefix = ? WHERE guild_id=?", (prefix, guild.id))
+        await self.db.execute(
+            "INSERT INTO guilds VALUES(:guild_id, :prefix) ON CONFLICT(guild_id) DO UPDATE SET prefix = :prefix",
+            {"guild_id": guild.id, "prefix": prefix},
+        )
+        await self.db.commit()
         self.prefixes[guild.id] = prefix
 
     async def start(self, *args, **kwargs):
diff --git a/nomen/notifications.py b/nomen/notifications.py
index 970f5ca..eaeb8fb 100644
--- a/nomen/notifications.py
+++ b/nomen/notifications.py
@@ -132,6 +132,13 @@ async def handle_triggers(ctx, message):
     db_updates = []
 
     search_query = """
+    WITH
+        pauses AS (SELECT user_id FROM user_pauses WHERE guild_id=:guild),
+        ignores AS (
+            SELECT target, user_id FROM user_ignores WHERE guild_id=:guild
+            UNION
+            SELECT target, user_id FROM user_blocks
+        )
     SELECT keyword, user_id, use_embed
     FROM ( -- Deduplicate notification recipients by user_id
         SELECT keyword, user_id, use_embed, row_number() over (partition by user_id) n
@@ -140,14 +147,11 @@ async def handle_triggers(ctx, message):
         WHERE likely(disabled IS NOT 1)                            -- Don't notify users who opted out
         AND (unlikely(notify_self IS 1) OR user_id IS NOT :author) -- Don't notify author unless wanted
         AND (unlikely(bots_notify IS 1) OR :is_bot IS NOT 1)       -- Don't notify from bots unless wanted
-        AND likely(NOT EXISTS(SELECT * FROM (                   -- Don't notify if...
-            SELECT target FROM user_ignores                 -- Author or channel is ignored in this guild
-            WHERE user_id=user_id AND guild_id=:guild
-            UNION
-            SELECT target FROM user_blocks                  -- Author is blocked
-            WHERE user_id=user_id
-        ) WHERE target IN (:author, :channel, :category, :parent)))
-        AND likely(NOT EXISTS(SELECT * FROM user_pauses WHERE user_id=user_id AND guild_id=:guild))
+        AND likely(:author NOT IN (SELECT target FROM ignores WHERE user_id=user_id))
+        AND likely(:channel NOT IN (SELECT target FROM ignores WHERE user_id=user_id))
+        AND likely(:category NOT IN (SELECT target FROM ignores WHERE user_id=user_id))
+        AND likely(:parent NOT IN (SELECT target FROM ignores WHERE user_id=user_id))
+        AND likely(user_id NOT IN pauses)
         AND guild_id=:guild AND unlikely(contains(:content, keyword, regex))
     )
     WHERE n=1
@@ -356,14 +360,14 @@ class Notifications(Cog):
             await ctx.bot.db.commit()
             await ctx.send(f"Paused notifications in {ctx.guild}")
 
-    @keyword.command()
+    @keyword.command(aliases=["unpause"])
     @guild_only()
     async def resume(self, ctx):
         """
         Resume notifications in this guild
         """
 
-        params = (ctx.author.id, ctx.guild_id)
+        params = (ctx.author.id, ctx.guild.id)
         if await ctx.bot.db.fetch_exists("SELECT * FROM user_pauses WHERE user_id=? AND guild_id=?", params):
             await ctx.bot.db.execute("DELETE FROM user_pauses WHERE user_id=? AND guild_id=?", params)
             await ctx.bot.db.commit()