diff --git a/pkg/calls/filter.go b/pkg/calls/filter.go
new file mode 100644
index 0000000..097862e
--- /dev/null
+++ b/pkg/calls/filter.go
@@ -0,0 +1,90 @@
+package calls
+
+type filterQuery struct {
+	Query  string
+	Params []interface{}
+}
+
+type Talkgroup struct {
+	System    uint32
+	Talkgroup uint32
+}
+
+func (t Talkgroup) Pack() int64 {
+	// P25 system IDs are 12 bits, so we can fit them in a signed 8 byte int (int64, pg INT8)
+	return int64((int64(t.System) << 32) | int64(t.Talkgroup))
+}
+
+type Filter struct {
+	Talkgroups       []Talkgroup `json:"talkgroups"`
+	TalkgroupsNot    []Talkgroup `json:"talkgroupsNot"`
+	TalkgroupTagsAll []string    `json:"talkgroupTagsAll"`
+	TalkgroupTagsAny []string    `json:"talkgroupTagsAny"`
+	TalkgroupTagsNot []string    `json:"talkgroupTagsNot"`
+
+	talkgroups       map[Talkgroup]bool
+	talkgroupTagsAll map[string]bool
+	talkgroupTagsAny map[string]bool
+	talkgroupTagsNot map[string]bool
+
+	query *filterQuery
+}
+
+func queryParams(s string, p ...any) (string, []any) {
+	return s, p
+}
+
+func (f *Filter) filterQuery() filterQuery {
+	var q string
+	var args []interface{}
+
+	q, args = queryParams(
+		`((talkgroups.id = ANY(?) OR talkgroups.tags @> ARRAY[?]) OR (talkgroups.tags && ARRAY[?])) AND (talkgroups.id != ANY(?) AND NOT talkgroups.tags @> ARRAY[?])`,
+		f.Talkgroups, f.TalkgroupTagsAny, f.TalkgroupTagsAll, f.TalkgroupsNot, f.TalkgroupTagsNot)
+
+	return filterQuery{Query: q, Params: args}
+}
+
+func (f *Filter) Packed(tg []Talkgroup) []int64 {
+	s := make([]int64, len(f.Talkgroups))
+
+	for i, v := range tg {
+		s[i] = v.Pack()
+	}
+
+	return s
+}
+
+func (f *Filter) Compile() *Filter {
+	f.talkgroups = make(map[Talkgroup]bool)
+	for _, tg := range f.Talkgroups {
+		f.talkgroups[tg] = true
+	}
+
+	for _, tg := range f.TalkgroupsNot {
+		f.talkgroups[tg] = false
+	}
+
+	f.talkgroupTagsAll = make(map[string]bool)
+	for _, tag := range f.TalkgroupTagsAll {
+		f.talkgroupTagsAll[tag] = true
+	}
+
+	f.talkgroupTagsAny = make(map[string]bool)
+	for _, tag := range f.TalkgroupTagsAny {
+		f.talkgroupTagsAny[tag] = true
+	}
+
+	for _, tag := range f.TalkgroupTagsNot {
+		f.talkgroupTagsNot[tag] = true
+	}
+
+	q := f.filterQuery()
+	f.query = &q
+
+	return f
+}
+
+type FilterCache struct {
+	cache map[string]Filter
+}
diff --git a/pkg/gordio/database/database.go b/pkg/gordio/database/database.go
index 4ed9e61..99c26fc 100644
--- a/pkg/gordio/database/database.go
+++ b/pkg/gordio/database/database.go
@@ -13,6 +13,8 @@ import (
 	"github.com/jackc/pgx/v5/pgxpool"
 )
 
+// This file will eventually turn into a postgres driver.
+
 // DB is a database handle.
 type DB struct {
 	*pgxpool.Pool
diff --git a/pkg/gordio/database/models.go b/pkg/gordio/database/models.go
index 6aafd8d..da5b3e2 100644
--- a/pkg/gordio/database/models.go
+++ b/pkg/gordio/database/models.go
@@ -68,8 +68,9 @@ type System struct {
 }
 
 type Talkgroup struct {
+	ID        int64    `json:"id"`
 	SystemID  int      `json:"system_id"`
-	Tgid      int      `json:"tgid"`
+	Tgid      *int32   `json:"tgid"`
 	Name      *string  `json:"name"`
 	TgGroup   *string  `json:"tg_group"`
 	Frequency *int32   `json:"frequency"`
diff --git a/pkg/gordio/database/querier.go b/pkg/gordio/database/querier.go
index ab6d283..8f35eb3 100644
--- a/pkg/gordio/database/querier.go
+++ b/pkg/gordio/database/querier.go
@@ -13,12 +13,13 @@ import (
 
 type Querier interface {
 	AddCall(ctx context.Context, arg AddCallParams) (uuid.UUID, error)
+	BulkSetTalkgroupTags(ctx context.Context, iD int64, tags []string) error
 	CreateAPIKey(ctx context.Context, owner int, expires pgtype.Timestamp, disabled *bool) (ApiKey, error)
 	CreateUser(ctx context.Context, arg CreateUserParams) (User, error)
 	DeleteAPIKey(ctx context.Context, apiKey string) error
 	DeleteUser(ctx context.Context, username string) error
 	GetAPIKey(ctx context.Context, apiKey string) (ApiKey, error)
-	GetTalkgroupTags(ctx context.Context, systemID int, tgid int) ([]string, error)
+	GetTalkgroupTags(ctx context.Context, sys int, tg int) ([]string, error)
 	GetTalkgroupsWithAllTags(ctx context.Context, tags []string) ([]Talkgroup, error)
 	GetTalkgroupsWithAnyTags(ctx context.Context, tags []string) ([]Talkgroup, error)
 	GetUserByID(ctx context.Context, id int32) (User, error)
@@ -26,7 +27,7 @@ type Querier interface {
 	GetUserByUsername(ctx context.Context, username string) (User, error)
 	GetUsers(ctx context.Context) ([]User, error)
 	SetCallTranscript(ctx context.Context, iD uuid.UUID, transcript *string) error
-	SetTalkgroupTags(ctx context.Context, tags []string, tgid int) error
+	SetTalkgroupTags(ctx context.Context, sys int, tg int, tags []string) error
 	UpdatePassword(ctx context.Context, username string, password string) error
 }
 
diff --git a/pkg/gordio/database/talkgroups.sql.go b/pkg/gordio/database/talkgroups.sql.go
index 398d77b..ce66dcf 100644
--- a/pkg/gordio/database/talkgroups.sql.go
+++ b/pkg/gordio/database/talkgroups.sql.go
@@ -9,20 +9,30 @@ import (
 	"context"
 )
 
-const getTalkgroupTags = `-- name: GetTalkgroupTags :one
-SELECT tags FROM talkgroups
-WHERE system_id = $1 AND tgid = $2
+const bulkSetTalkgroupTags = `-- name: BulkSetTalkgroupTags :exec
+UPDATE talkgroups SET tags = $2
+WHERE id = ANY($1)
 `
 
-func (q *Queries) GetTalkgroupTags(ctx context.Context, systemID int, tgid int) ([]string, error) {
-	row := q.db.QueryRow(ctx, getTalkgroupTags, systemID, tgid)
+func (q *Queries) BulkSetTalkgroupTags(ctx context.Context, iD int64, tags []string) error {
+	_, err := q.db.Exec(ctx, bulkSetTalkgroupTags, iD, tags)
+	return err
+}
+
+const getTalkgroupTags = `-- name: GetTalkgroupTags :one
+SELECT tags FROM talkgroups
+WHERE id = systg2id($1, $2)
+`
+
+func (q *Queries) GetTalkgroupTags(ctx context.Context, sys int, tg int) ([]string, error) {
+	row := q.db.QueryRow(ctx, getTalkgroupTags, sys, tg)
 	var tags []string
 	err := row.Scan(&tags)
 	return tags, err
 }
 
 const getTalkgroupsWithAllTags = `-- name: GetTalkgroupsWithAllTags :many
-SELECT system_id, tgid, name, tg_group, frequency, metadata, tags FROM talkgroups
+SELECT id, system_id, tgid, name, tg_group, frequency, metadata, tags FROM talkgroups
 WHERE tags && ARRAY[$1]
 `
 
@@ -36,6 +46,7 @@ func (q *Queries) GetTalkgroupsWithAllTags(ctx context.Context, tags []string) (
 	for rows.Next() {
 		var i Talkgroup
 		if err := rows.Scan(
+			&i.ID,
 			&i.SystemID,
 			&i.Tgid,
 			&i.Name,
@@ -55,7 +66,7 @@ func (q *Queries) GetTalkgroupsWithAllTags(ctx context.Context, tags []string) (
 }
 
 const getTalkgroupsWithAnyTags = `-- name: GetTalkgroupsWithAnyTags :many
-SELECT system_id, tgid, name, tg_group, frequency, metadata, tags FROM talkgroups
+SELECT id, system_id, tgid, name, tg_group, frequency, metadata, tags FROM talkgroups
 WHERE tags @> ARRAY[$1]
 `
 
@@ -69,6 +80,7 @@ func (q *Queries) GetTalkgroupsWithAnyTags(ctx context.Context, tags []string) (
 	for rows.Next() {
 		var i Talkgroup
 		if err := rows.Scan(
+			&i.ID,
 			&i.SystemID,
 			&i.Tgid,
 			&i.Name,
@@ -88,11 +100,11 @@ func (q *Queries) GetTalkgroupsWithAnyTags(ctx context.Context, tags []string) (
 }
 
 const setTalkgroupTags = `-- name: SetTalkgroupTags :exec
-UPDATE talkgroups SET tags = $1
-WHERE system_id = $1 AND tgid = $2
+UPDATE talkgroups SET tags = $3
+WHERE id = systg2id($1, $2)
 `
 
-func (q *Queries) SetTalkgroupTags(ctx context.Context, tags []string, tgid int) error {
-	_, err := q.db.Exec(ctx, setTalkgroupTags, tags, tgid)
+func (q *Queries) SetTalkgroupTags(ctx context.Context, sys int, tg int, tags []string) error {
+	_, err := q.db.Exec(ctx, setTalkgroupTags, sys, tg, tags)
 	return err
 }
diff --git a/pkg/pb/stillbox.pb.go b/pkg/pb/stillbox.pb.go
index 22a2096..b0ca97c 100644
--- a/pkg/pb/stillbox.pb.go
+++ b/pkg/pb/stillbox.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.34.2
-// 	protoc        v5.27.1
+// 	protoc        v5.27.2
 // source: stillbox.proto
 
 package pb
diff --git a/sql/postgres/migrations/001_initial.up.sql b/sql/postgres/migrations/001_initial.up.sql
index ee5853b..3aca0a8 100644
--- a/sql/postgres/migrations/001_initial.up.sql
+++ b/sql/postgres/migrations/001_initial.up.sql
@@ -23,19 +23,42 @@ CREATE TABLE IF NOT EXISTS systems(
 	name TEXT NOT NULL
 );
 
+CREATE OR REPLACE FUNCTION systg2id(_sys INTEGER, _tg INTEGER) RETURNS INT8 LANGUAGE plpgsql AS
+$$
+BEGIN
+	RETURN ((_sys::BIGINT << 32) | _tg);
+END
+$$;
+
+CREATE OR REPLACE FUNCTION tgfromid(_id INT8) RETURNS INTEGER LANGUAGE plpgsql AS
+$$
+BEGIN
+	RETURN (_id & x'ffffffff'::BIGINT);
+END
+$$;
+
+CREATE OR REPLACE FUNCTION sysfromid(_id INT8) RETURNS INTEGER LANGUAGE plpgsql AS
+$$
+BEGIN
+	RETURN (_id >> 32);
+END
+$$;
+
 CREATE TABLE IF NOT EXISTS talkgroups(
-	system_id INTEGER REFERENCES systems(id) NOT NULL,
-	tgid INTEGER,
+	id INT8 PRIMARY KEY,
+	system_id INTEGER REFERENCES systems(id) NOT NULL GENERATED ALWAYS AS (id >> 32) STORED,
+	tgid INTEGER GENERATED ALWAYS AS (id & x'ffffffff'::BIGINT) STORED,
 	name TEXT,
 	tg_group TEXT,
 	frequency INTEGER,
 	metadata JSONB,
-	tags TEXT[] NOT NULL DEFAULT '{}',
-	PRIMARY KEY (system_id, tgid)
+	tags TEXT[] NOT NULL DEFAULT '{}'
 );
 
 CREATE INDEX IF NOT EXISTS talkgroup_id_tags ON talkgroups USING GIN (tags);
 
+
+
 CREATE TABLE IF NOT EXISTS talkgroups_learned(
 	id SERIAL PRIMARY KEY,
 	system_id INTEGER REFERENCES systems(id) NOT NULL,
diff --git a/sql/postgres/queries/talkgroups.sql b/sql/postgres/queries/talkgroups.sql
index fa224a3..213d074 100644
--- a/sql/postgres/queries/talkgroups.sql
+++ b/sql/postgres/queries/talkgroups.sql
@@ -8,8 +8,12 @@ WHERE tags && ARRAY[$1];
 
 -- name: GetTalkgroupTags :one
 SELECT tags FROM talkgroups
-WHERE system_id = $1 AND tgid = $2;
+WHERE id = systg2id($1, $2);
 
 -- name: SetTalkgroupTags :exec
-UPDATE talkgroups SET tags = $1
-WHERE system_id = $1 AND tgid = $2;
+UPDATE talkgroups SET tags = $3
+WHERE id = systg2id($1, $2);
+
+-- name: BulkSetTalkgroupTags :exec
+UPDATE talkgroups SET tags = $2
+WHERE id = ANY($1);