Use ContactsContract.PhoneLookup for invalid numbers in Cp2PhoneLookup.

"Invalid" numbers are identified according to PhoneNumberUtil.isValidNumber.

This is necessary to support loose matching for such numbers. However, ContactsContract.PhoneLookup only supports looking up individual numbers, which means that we cannot issue batch queries and must issue individiual queries for each invalid number.

The hope is that these numbers won't appear frequently so performance should still be acceptable.

However, as a failsafe, if there are more than 5 invalid numbers we just give up trying to bulk update the invalid numbers and signal that those numbers are INCOMPLETE so that the UI can query for their CP2 information on the fly (the UI will be updated in a future CL).

It was necessary to convert much of the class to use futures to support parallelization of the queries.

Bug: 71504246
Test: unit
PiperOrigin-RevId: 181216674
Change-Id: I3bec477d305772b4ca3e46d0bd326cfebf9fa313

2 files changed, 569 insertions, 332 deletions

diff --git a/java/com/android/dialer/phonelookup/cp2/Cp2PhoneLookup.java b/java/com/android/dialer/phonelookup/cp2/Cp2PhoneLookup.java
index 307e0a434..0d312cbbe 100644
--- a/java/com/android/dialer/phonelookup/cp2/Cp2PhoneLookup.java
+++ b/java/com/android/dialer/phonelookup/cp2/Cp2PhoneLookup.java
@@ -19,6 +19,8 @@ package com.android.dialer.phonelookup.cp2;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.database.Cursor;
+import android.net.Uri;
+import android.provider.ContactsContract;
 import android.provider.ContactsContract.CommonDataKinds.Phone;
 import android.provider.ContactsContract.Contacts;
 import android.provider.ContactsContract.DeletedContacts;
@@ -31,6 +33,7 @@ import com.android.dialer.DialerPhoneNumber;
 import com.android.dialer.common.Assert;
 import com.android.dialer.common.LogUtil;
 import com.android.dialer.common.concurrent.Annotations.BackgroundExecutor;
+import com.android.dialer.common.concurrent.Annotations.LightweightExecutor;
 import com.android.dialer.inject.ApplicationContext;
 import com.android.dialer.phonelookup.PhoneLookup;
 import com.android.dialer.phonelookup.PhoneLookupInfo;
@@ -43,12 +46,18 @@ import com.android.dialer.telecom.TelecomCallUtil;
 import com.google.common.base.Optional;
 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Maps;
+import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.ListenableFuture;
 import com.google.common.util.concurrent.ListeningExecutorService;
+import com.google.common.util.concurrent.MoreExecutors;
 import com.google.protobuf.InvalidProtocolBufferException;
+import java.util.ArrayList;
+import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
 import java.util.Set;
+import java.util.concurrent.Callable;
 import javax.inject.Inject;
 
 /** PhoneLookup implementation for local contacts. */
@@ -57,7 +66,8 @@ public final class Cp2PhoneLookup implements PhoneLookup<Cp2Info> {
   private static final String PREF_LAST_TIMESTAMP_PROCESSED =
       "cp2PhoneLookupLastTimestampProcessed";
 
-  private static final String[] CP2_INFO_PROJECTION =
+  /** Projection for performing batch lookups based on E164 numbers using the PHONE table. */
+  private static final String[] PHONE_PROJECTION =
       new String[] {
         Phone.DISPLAY_NAME_PRIMARY, // 0
         Phone.PHOTO_THUMBNAIL_URI, // 1
@@ -65,24 +75,44 @@ public final class Cp2PhoneLookup implements PhoneLookup<Cp2Info> {
         Phone.TYPE, // 3
         Phone.LABEL, // 4
         Phone.NORMALIZED_NUMBER, // 5
-        Phone.NUMBER, // 6
-        Phone.CONTACT_ID, // 7
-        Phone.LOOKUP_KEY // 8
+        Phone.CONTACT_ID, // 6
+        Phone.LOOKUP_KEY // 7
       };
 
+  /**
+   * Projection for performing individual lookups of non-E164 numbers using the PHONE_LOOKUP table.
+   */
+  private static final String[] PHONE_LOOKUP_PROJECTION =
+      new String[] {
+        ContactsContract.PhoneLookup.DISPLAY_NAME_PRIMARY, // 0
+        ContactsContract.PhoneLookup.PHOTO_THUMBNAIL_URI, // 1
+        ContactsContract.PhoneLookup.PHOTO_ID, // 2
+        ContactsContract.PhoneLookup.TYPE, // 3
+        ContactsContract.PhoneLookup.LABEL, // 4
+        ContactsContract.PhoneLookup.NORMALIZED_NUMBER, // 5
+        ContactsContract.PhoneLookup.CONTACT_ID, // 6
+        ContactsContract.PhoneLookup.LOOKUP_KEY // 7
+      };
+
+  // The following indexes should match both PHONE_PROJECTION and PHONE_LOOKUP_PROJECTION above.
   private static final int CP2_INFO_NAME_INDEX = 0;
   private static final int CP2_INFO_PHOTO_URI_INDEX = 1;
   private static final int CP2_INFO_PHOTO_ID_INDEX = 2;
   private static final int CP2_INFO_TYPE_INDEX = 3;
   private static final int CP2_INFO_LABEL_INDEX = 4;
   private static final int CP2_INFO_NORMALIZED_NUMBER_INDEX = 5;
-  private static final int CP2_INFO_NUMBER_INDEX = 6;
-  private static final int CP2_INFO_CONTACT_ID_INDEX = 7;
-  private static final int CP2_INFO_LOOKUP_KEY_INDEX = 8;
+  private static final int CP2_INFO_CONTACT_ID_INDEX = 6;
+  private static final int CP2_INFO_LOOKUP_KEY_INDEX = 7;
+
+  // We cannot efficiently process invalid numbers because batch queries cannot be constructed which
+  // accomplish the necessary loose matching. We'll attempt to process a limited number of them,
+  // but if there are too many we fall back to querying CP2 at render time.
+  private static final int MAX_SUPPORTED_INVALID_NUMBERS = 5;
 
   private final Context appContext;
   private final SharedPreferences sharedPreferences;
   private final ListeningExecutorService backgroundExecutorService;
+  private final ListeningExecutorService lightweightExecutorService;
 
   @Nullable private Long currentLastTimestampProcessed;
 
@@ -90,10 +120,12 @@ public final class Cp2PhoneLookup implements PhoneLookup<Cp2Info> {
   Cp2PhoneLookup(
       @ApplicationContext Context appContext,
       @Unencrypted SharedPreferences sharedPreferences,
-      @BackgroundExecutor ListeningExecutorService backgroundExecutorService) {
+      @BackgroundExecutor ListeningExecutorService backgroundExecutorService,
+      @LightweightExecutor ListeningExecutorService lightweightExecutorService) {
     this.appContext = appContext;
     this.sharedPreferences = sharedPreferences;
     this.backgroundExecutorService = backgroundExecutorService;
+    this.lightweightExecutorService = lightweightExecutorService;
   }
 
   @Override
@@ -108,10 +140,12 @@ public final class Cp2PhoneLookup implements PhoneLookup<Cp2Info> {
     }
     Optional<String> e164 = TelecomCallUtil.getE164Number(appContext, call);
     Set<Cp2ContactInfo> cp2ContactInfos = new ArraySet<>();
+    // Note: It would make sense to use PHONE_LOOKUP for E164 numbers as well, but we use PHONE to
+    // ensure consistency when the batch methods are used to update data.
     try (Cursor cursor =
         e164.isPresent()
-            ? queryPhoneTableBasedOnE164(CP2_INFO_PROJECTION, ImmutableSet.of(e164.get()))
-            : queryPhoneTableBasedOnRawNumber(CP2_INFO_PROJECTION, ImmutableSet.of(rawNumber))) {
+            ? queryPhoneTableBasedOnE164(PHONE_PROJECTION, ImmutableSet.of(e164.get()))
+            : queryPhoneLookup(PHONE_LOOKUP_PROJECTION, rawNumber)) {
       if (cursor == null) {
         LogUtil.w("Cp2PhoneLookup.lookupInternal", "null cursor");
         return Cp2Info.getDefaultInstance();
@@ -125,133 +159,203 @@ public final class Cp2PhoneLookup implements PhoneLookup<Cp2Info> {
 
   @Override
   public ListenableFuture<Boolean> isDirty(ImmutableSet<DialerPhoneNumber> phoneNumbers) {
-    return backgroundExecutorService.submit(() -> isDirtyInternal(phoneNumbers));
-  }
-
-  private boolean isDirtyInternal(ImmutableSet<DialerPhoneNumber> phoneNumbers) {
-    long lastModified = sharedPreferences.getLong(PREF_LAST_TIMESTAMP_PROCESSED, 0L);
-    // We are always going to need to do this check and it is pretty cheap so do it first.
-    if (anyContactsDeletedSince(lastModified)) {
-      return true;
-    }
-    // Hopefully the most common case is there are no contacts updated; we can detect this cheaply.
-    if (noContactsModifiedSince(lastModified)) {
-      return false;
-    }
-    // This method is more expensive but is probably the most likely scenario; we are looking for
-    // changes to contacts which have been called.
-    if (contactsUpdated(queryPhoneTableForContactIds(phoneNumbers), lastModified)) {
-      return true;
-    }
-    // This is the most expensive method so do it last; the scenario is that a contact which has
-    // been called got disassociated with a number and we need to clear their information.
-    if (contactsUpdated(queryPhoneLookupHistoryForContactIds(), lastModified)) {
-      return true;
-    }
-    return false;
+    PartitionedNumbers partitionedNumbers = new PartitionedNumbers(phoneNumbers);
+    if (partitionedNumbers.unformattableNumbers().size() > MAX_SUPPORTED_INVALID_NUMBERS) {
+      // If there are N invalid numbers, we can't determine determine dirtiness without running N
+      // queries; since running this many queries is not feasible for the (lightweight) isDirty
+      // check, simply return true. The expectation is that this should rarely be the case as the
+      // vast majority of numbers in call logs should be valid.
+      return Futures.immediateFuture(true);
+    }
+
+    ListenableFuture<Long> lastModifiedFuture =
+        backgroundExecutorService.submit(
+            () -> sharedPreferences.getLong(PREF_LAST_TIMESTAMP_PROCESSED, 0L));
+    return Futures.transformAsync(
+        lastModifiedFuture,
+        lastModified -> {
+          // We are always going to need to do this check and it is pretty cheap so do it first.
+          ListenableFuture<Boolean> anyContactsDeletedFuture =
+              anyContactsDeletedSince(lastModified);
+          return Futures.transformAsync(
+              anyContactsDeletedFuture,
+              anyContactsDeleted -> {
+                if (anyContactsDeleted) {
+                  return Futures.immediateFuture(true);
+                }
+                // Hopefully the most common case is there are no contacts updated; we can detect
+                // this cheaply.
+                ListenableFuture<Boolean> noContactsModifiedSinceFuture =
+                    noContactsModifiedSince(lastModified);
+                return Futures.transformAsync(
+                    noContactsModifiedSinceFuture,
+                    noContactsModifiedSince -> {
+                      if (noContactsModifiedSince) {
+                        return Futures.immediateFuture(false);
+                      }
+                      // This method is more expensive but is probably the most likely scenario; we
+                      // are looking for changes to contacts which have been called.
+                      ListenableFuture<Set<Long>> contactIdsFuture =
+                          queryPhoneTableForContactIds(phoneNumbers);
+                      ListenableFuture<Boolean> contactsUpdatedFuture =
+                          Futures.transformAsync(
+                              contactIdsFuture,
+                              contactIds -> contactsUpdated(contactIds, lastModified),
+                              MoreExecutors.directExecutor());
+                      return Futures.transformAsync(
+                          contactsUpdatedFuture,
+                          contactsUpdated -> {
+                            if (contactsUpdated) {
+                              return Futures.immediateFuture(true);
+                            }
+                            // This is the most expensive method so do it last; the scenario is that
+                            // a contact which has been called got disassociated with a number and
+                            // we need to clear their information.
+                            ListenableFuture<Set<Long>> phoneLookupContactIdsFuture =
+                                queryPhoneLookupHistoryForContactIds();
+                            return Futures.transformAsync(
+                                phoneLookupContactIdsFuture,
+                                phoneLookupContactIds ->
+                                    contactsUpdated(phoneLookupContactIds, lastModified),
+                                MoreExecutors.directExecutor());
+                          },
+                          MoreExecutors.directExecutor());
+                    },
+                    MoreExecutors.directExecutor());
+              },
+              MoreExecutors.directExecutor());
+        },
+        MoreExecutors.directExecutor());
   }
 
   /**
    * Returns set of contact ids that correspond to {@code dialerPhoneNumbers} if the contact exists.
    */
-  private Set<Long> queryPhoneTableForContactIds(
+  private ListenableFuture<Set<Long>> queryPhoneTableForContactIds(
       ImmutableSet<DialerPhoneNumber> dialerPhoneNumbers) {
-    Set<Long> contactIds = new ArraySet<>();
-
     PartitionedNumbers partitionedNumbers = new PartitionedNumbers(dialerPhoneNumbers);
 
+    List<ListenableFuture<Set<Long>>> queryFutures = new ArrayList<>();
+
     // First use the E164 numbers to query the NORMALIZED_NUMBER column.
-    contactIds.addAll(
+    queryFutures.add(
         queryPhoneTableForContactIdsBasedOnE164(partitionedNumbers.validE164Numbers()));
 
-    // Then run a separate query using the NUMBER column to handle numbers that can't be formatted.
-    contactIds.addAll(
-        queryPhoneTableForContactIdsBasedOnRawNumber(partitionedNumbers.unformattableNumbers()));
-
-    return contactIds;
+    // Then run a separate query for each invalid number. Separate queries are done to accomplish
+    // loose matching which couldn't be accomplished with a batch query.
+    Assert.checkState(
+        partitionedNumbers.unformattableNumbers().size() <= MAX_SUPPORTED_INVALID_NUMBERS);
+    for (String invalidNumber : partitionedNumbers.unformattableNumbers()) {
+      queryFutures.add(queryPhoneLookupTableForContactIdsBasedOnRawNumber(invalidNumber));
+    }
+    return Futures.transform(
+        Futures.allAsList(queryFutures),
+        listOfSets -> {
+          Set<Long> contactIds = new ArraySet<>();
+          for (Set<Long> ids : listOfSets) {
+            contactIds.addAll(ids);
+          }
+          return contactIds;
+        },
+        lightweightExecutorService);
   }
 
   /** Gets all of the contact ids from PhoneLookupHistory. */
-  private Set<Long> queryPhoneLookupHistoryForContactIds() {
-    Set<Long> contactIds = new ArraySet<>();
-    try (Cursor cursor =
-        appContext
-            .getContentResolver()
-            .query(
-                PhoneLookupHistory.CONTENT_URI,
-                new String[] {
-                  PhoneLookupHistory.PHONE_LOOKUP_INFO,
-                },
-                null,
-                null,
-                null)) {
-
-      if (cursor == null) {
-        LogUtil.w("Cp2PhoneLookup.queryPhoneLookupHistoryForContactIds", "null cursor");
-        return contactIds;
-      }
-
-      if (cursor.moveToFirst()) {
-        int phoneLookupInfoColumn =
-            cursor.getColumnIndexOrThrow(PhoneLookupHistory.PHONE_LOOKUP_INFO);
-        do {
-          PhoneLookupInfo phoneLookupInfo;
-          try {
-            phoneLookupInfo = PhoneLookupInfo.parseFrom(cursor.getBlob(phoneLookupInfoColumn));
-          } catch (InvalidProtocolBufferException e) {
-            throw new IllegalStateException(e);
-          }
-          for (Cp2ContactInfo info : phoneLookupInfo.getCp2Info().getCp2ContactInfoList()) {
-            contactIds.add(info.getContactId());
+  private ListenableFuture<Set<Long>> queryPhoneLookupHistoryForContactIds() {
+    return backgroundExecutorService.submit(
+        () -> {
+          Set<Long> contactIds = new ArraySet<>();
+          try (Cursor cursor =
+              appContext
+                  .getContentResolver()
+                  .query(
+                      PhoneLookupHistory.CONTENT_URI,
+                      new String[] {
+                        PhoneLookupHistory.PHONE_LOOKUP_INFO,
+                      },
+                      null,
+                      null,
+                      null)) {
+
+            if (cursor == null) {
+              LogUtil.w("Cp2PhoneLookup.queryPhoneLookupHistoryForContactIds", "null cursor");
+              return contactIds;
+            }
+
+            if (cursor.moveToFirst()) {
+              int phoneLookupInfoColumn =
+                  cursor.getColumnIndexOrThrow(PhoneLookupHistory.PHONE_LOOKUP_INFO);
+              do {
+                PhoneLookupInfo phoneLookupInfo;
+                try {
+                  phoneLookupInfo =
+                      PhoneLookupInfo.parseFrom(cursor.getBlob(phoneLookupInfoColumn));
+                } catch (InvalidProtocolBufferException e) {
+                  throw new IllegalStateException(e);
+                }
+                for (Cp2ContactInfo info : phoneLookupInfo.getCp2Info().getCp2ContactInfoList()) {
+                  contactIds.add(info.getContactId());
+                }
+              } while (cursor.moveToNext());
+            }
           }
-        } while (cursor.moveToNext());
-      }
-    }
-
-    return contactIds;
+          return contactIds;
+        });
   }
 
-  private Set<Long> queryPhoneTableForContactIdsBasedOnE164(Set<String> validE164Numbers) {
-    Set<Long> contactIds = new ArraySet<>();
-    if (validE164Numbers.isEmpty()) {
-      return contactIds;
-    }
-    try (Cursor cursor =
-        queryPhoneTableBasedOnE164(new String[] {Phone.CONTACT_ID}, validE164Numbers)) {
-      if (cursor == null) {
-        LogUtil.w("Cp2PhoneLookup.queryPhoneTableForContactIdsBasedOnE164", "null cursor");
-        return contactIds;
-      }
-      while (cursor.moveToNext()) {
-        contactIds.add(cursor.getLong(0 /* columnIndex */));
-      }
-    }
-    return contactIds;
+  private ListenableFuture<Set<Long>> queryPhoneTableForContactIdsBasedOnE164(
+      Set<String> validE164Numbers) {
+    return backgroundExecutorService.submit(
+        () -> {
+          Set<Long> contactIds = new ArraySet<>();
+          if (validE164Numbers.isEmpty()) {
+            return contactIds;
+          }
+          try (Cursor cursor =
+              queryPhoneTableBasedOnE164(new String[] {Phone.CONTACT_ID}, validE164Numbers)) {
+            if (cursor == null) {
+              LogUtil.w("Cp2PhoneLookup.queryPhoneTableForContactIdsBasedOnE164", "null cursor");
+              return contactIds;
+            }
+            while (cursor.moveToNext()) {
+              contactIds.add(cursor.getLong(0 /* columnIndex */));
+            }
+          }
+          return contactIds;
+        });
   }
 
-  private Set<Long> queryPhoneTableForContactIdsBasedOnRawNumber(Set<String> unformattableNumbers) {
-    Set<Long> contactIds = new ArraySet<>();
-    if (unformattableNumbers.isEmpty()) {
-      return contactIds;
-    }
-    try (Cursor cursor =
-        queryPhoneTableBasedOnRawNumber(new String[] {Phone.CONTACT_ID}, unformattableNumbers)) {
-      if (cursor == null) {
-        LogUtil.w("Cp2PhoneLookup.queryPhoneTableForContactIdsBasedOnE164", "null cursor");
-        return contactIds;
-      }
-      while (cursor.moveToNext()) {
-        contactIds.add(cursor.getLong(0 /* columnIndex */));
-      }
-    }
-    return contactIds;
+  private ListenableFuture<Set<Long>> queryPhoneLookupTableForContactIdsBasedOnRawNumber(
+      String rawNumber) {
+    return backgroundExecutorService.submit(
+        () -> {
+          Set<Long> contactIds = new ArraySet<>();
+          try (Cursor cursor =
+              queryPhoneLookup(
+                  new String[] {android.provider.ContactsContract.PhoneLookup.CONTACT_ID},
+                  rawNumber)) {
+            if (cursor == null) {
+              LogUtil.w(
+                  "Cp2PhoneLookup.queryPhoneLookupTableForContactIdsBasedOnRawNumber",
+                  "null cursor");
+              return contactIds;
+            }
+            while (cursor.moveToNext()) {
+              contactIds.add(cursor.getLong(0 /* columnIndex */));
+            }
+          }
+          return contactIds;
+        });
   }
 
   /** Returns true if any contacts were modified after {@code lastModified}. */
-  private boolean contactsUpdated(Set<Long> contactIds, long lastModified) {
-    try (Cursor cursor = queryContactsTableForContacts(contactIds, lastModified)) {
-      return cursor.getCount() > 0;
-    }
+  private ListenableFuture<Boolean> contactsUpdated(Set<Long> contactIds, long lastModified) {
+    return backgroundExecutorService.submit(
+        () -> {
+          try (Cursor cursor = queryContactsTableForContacts(contactIds, lastModified)) {
+            return cursor.getCount() > 0;
+          }
+        });
   }
 
   private Cursor queryContactsTableForContacts(Set<Long> contactIds, long lastModified) {
@@ -282,47 +386,47 @@ public final class Cp2PhoneLookup implements PhoneLookup<Cp2Info> {
             null);
   }
 
-  private boolean noContactsModifiedSince(long lastModified) {
-    try (Cursor cursor =
-        appContext
-            .getContentResolver()
-            .query(
-                Contacts.CONTENT_URI,
-                new String[] {Contacts._ID},
-                Contacts.CONTACT_LAST_UPDATED_TIMESTAMP + " > ?",
-                new String[] {Long.toString(lastModified)},
-                Contacts._ID + " limit 1")) {
-      if (cursor == null) {
-        LogUtil.w("Cp2PhoneLookup.noContactsModifiedSince", "null cursor");
-        return false;
-      }
-      return cursor.getCount() == 0;
-    }
+  private ListenableFuture<Boolean> noContactsModifiedSince(long lastModified) {
+    return backgroundExecutorService.submit(
+        () -> {
+          try (Cursor cursor =
+              appContext
+                  .getContentResolver()
+                  .query(
+                      Contacts.CONTENT_URI,
+                      new String[] {Contacts._ID},
+                      Contacts.CONTACT_LAST_UPDATED_TIMESTAMP + " > ?",
+                      new String[] {Long.toString(lastModified)},
+                      Contacts._ID + " limit 1")) {
+            if (cursor == null) {
+              LogUtil.w("Cp2PhoneLookup.noContactsModifiedSince", "null cursor");
+              return false;
+            }
+            return cursor.getCount() == 0;
+          }
+        });
   }
 
   /** Returns true if any contacts were deleted after {@code lastModified}. */
-  private boolean anyContactsDeletedSince(long lastModified) {
-    try (Cursor cursor =
-        appContext
-            .getContentResolver()
-            .query(
-                DeletedContacts.CONTENT_URI,
-                new String[] {DeletedContacts.CONTACT_DELETED_TIMESTAMP},
-                DeletedContacts.CONTACT_DELETED_TIMESTAMP + " > ?",
-                new String[] {Long.toString(lastModified)},
-                DeletedContacts.CONTACT_DELETED_TIMESTAMP + " limit 1")) {
-      if (cursor == null) {
-        LogUtil.w("Cp2PhoneLookup.anyContactsDeletedSince", "null cursor");
-        return false;
-      }
-      return cursor.getCount() > 0;
-    }
-  }
-
-  @Override
-  public ListenableFuture<ImmutableMap<DialerPhoneNumber, Cp2Info>> getMostRecentInfo(
-      ImmutableMap<DialerPhoneNumber, Cp2Info> existingInfoMap) {
-    return backgroundExecutorService.submit(() -> getMostRecentInfoInternal(existingInfoMap));
+  private ListenableFuture<Boolean> anyContactsDeletedSince(long lastModified) {
+    return backgroundExecutorService.submit(
+        () -> {
+          try (Cursor cursor =
+              appContext
+                  .getContentResolver()
+                  .query(
+                      DeletedContacts.CONTENT_URI,
+                      new String[] {DeletedContacts.CONTACT_DELETED_TIMESTAMP},
+                      DeletedContacts.CONTACT_DELETED_TIMESTAMP + " > ?",
+                      new String[] {Long.toString(lastModified)},
+                      DeletedContacts.CONTACT_DELETED_TIMESTAMP + " limit 1")) {
+            if (cursor == null) {
+              LogUtil.w("Cp2PhoneLookup.anyContactsDeletedSince", "null cursor");
+              return false;
+            }
+            return cursor.getCount() > 0;
+          }
+        });
   }
 
   @Override
@@ -335,46 +439,96 @@ public final class Cp2PhoneLookup implements PhoneLookup<Cp2Info> {
     return phoneLookupInfo.getCp2Info();
   }
 
-  private ImmutableMap<DialerPhoneNumber, Cp2Info> getMostRecentInfoInternal(
+  @Override
+  public ListenableFuture<ImmutableMap<DialerPhoneNumber, Cp2Info>> getMostRecentInfo(
       ImmutableMap<DialerPhoneNumber, Cp2Info> existingInfoMap) {
     currentLastTimestampProcessed = null;
-    long lastModified = sharedPreferences.getLong(PREF_LAST_TIMESTAMP_PROCESSED, 0L);
-
-    // Build a set of each DialerPhoneNumber that was associated with a contact, and is no longer
-    // associated with that same contact.
-    Set<DialerPhoneNumber> deletedPhoneNumbers =
-        getDeletedPhoneNumbers(existingInfoMap, lastModified);
-
-    // For each DialerPhoneNumber that was associated with a contact or added to a contact,
-    // build a map of those DialerPhoneNumbers to a set Cp2ContactInfos, where each Cp2ContactInfo
-    // represents a contact.
-    Map<DialerPhoneNumber, Set<Cp2ContactInfo>> updatedContacts =
-        buildMapForUpdatedOrAddedContacts(existingInfoMap, lastModified, deletedPhoneNumbers);
-
-    // Start build a new map of updated info. This will replace existing info.
-    ImmutableMap.Builder<DialerPhoneNumber, Cp2Info> newInfoMapBuilder = ImmutableMap.builder();
 
-    // For each DialerPhoneNumber in existing info...
-    for (Entry<DialerPhoneNumber, Cp2Info> entry : existingInfoMap.entrySet()) {
-      DialerPhoneNumber dialerPhoneNumber = entry.getKey();
-      Cp2Info existingInfo = entry.getValue();
-
-      // Build off the existing info
-      Cp2Info.Builder infoBuilder = Cp2Info.newBuilder(existingInfo);
-
-      // If the contact was updated, replace the Cp2ContactInfo list
-      if (updatedContacts.containsKey(dialerPhoneNumber)) {
-        infoBuilder.clear().addAllCp2ContactInfo(updatedContacts.get(dialerPhoneNumber));
+    ListenableFuture<Long> lastModifiedFuture =
+        backgroundExecutorService.submit(
+            () -> sharedPreferences.getLong(PREF_LAST_TIMESTAMP_PROCESSED, 0L));
+    return Futures.transformAsync(
+        lastModifiedFuture,
+        lastModified -> {
+          // Build a set of each DialerPhoneNumber that was associated with a contact, and is no
+          // longer associated with that same contact.
+          ListenableFuture<Set<DialerPhoneNumber>> deletedPhoneNumbersFuture =
+              getDeletedPhoneNumbers(existingInfoMap, lastModified);
+
+          return Futures.transformAsync(
+              deletedPhoneNumbersFuture,
+              deletedPhoneNumbers -> {
+
+                // If there are too many invalid numbers, just defer the work to render time.
+                ArraySet<DialerPhoneNumber> unprocessableNumbers =
+                    findUnprocessableNumbers(existingInfoMap);
+                Map<DialerPhoneNumber, Cp2Info> existingInfoMapToProcess = existingInfoMap;
+                if (!unprocessableNumbers.isEmpty()) {
+                  existingInfoMapToProcess =
+                      Maps.filterKeys(
+                          existingInfoMap, number -> !unprocessableNumbers.contains(number));
+                }
+
+                // For each DialerPhoneNumber that was associated with a contact or added to a
+                // contact, build a map of those DialerPhoneNumbers to a set Cp2ContactInfos, where
+                // each Cp2ContactInfo represents a contact.
+                ListenableFuture<Map<DialerPhoneNumber, Set<Cp2ContactInfo>>>
+                    updatedContactsFuture =
+                        buildMapForUpdatedOrAddedContacts(
+                            existingInfoMapToProcess, lastModified, deletedPhoneNumbers);
+
+                return Futures.transform(
+                    updatedContactsFuture,
+                    updatedContacts -> {
+
+                      // Start build a new map of updated info. This will replace existing info.
+                      ImmutableMap.Builder<DialerPhoneNumber, Cp2Info> newInfoMapBuilder =
+                          ImmutableMap.builder();
+
+                      // For each DialerPhoneNumber in existing info...
+                      for (Entry<DialerPhoneNumber, Cp2Info> entry : existingInfoMap.entrySet()) {
+                        DialerPhoneNumber dialerPhoneNumber = entry.getKey();
+                        Cp2Info existingInfo = entry.getValue();
+
+                        // Build off the existing info
+                        Cp2Info.Builder infoBuilder = Cp2Info.newBuilder(existingInfo);
+
+                        // If the contact was updated, replace the Cp2ContactInfo list
+                        if (updatedContacts.containsKey(dialerPhoneNumber)) {
+                          infoBuilder
+                              .clear()
+                              .addAllCp2ContactInfo(updatedContacts.get(dialerPhoneNumber));
+                          // If it was deleted and not added to a new contact, clear all the CP2
+                          // information.
+                        } else if (deletedPhoneNumbers.contains(dialerPhoneNumber)) {
+                          infoBuilder.clear();
+                        } else if (unprocessableNumbers.contains(dialerPhoneNumber)) {
+                          infoBuilder.clear().setIsIncomplete(true);
+                        }
+
+                        // If the DialerPhoneNumber didn't change, add the unchanged existing info.
+                        newInfoMapBuilder.put(dialerPhoneNumber, infoBuilder.build());
+                      }
+                      return newInfoMapBuilder.build();
+                    },
+                    lightweightExecutorService);
+              },
+              lightweightExecutorService);
+        },
+        lightweightExecutorService);
+  }
 
-        // If it was deleted and not added to a new contact, clear all the CP2 information.
-      } else if (deletedPhoneNumbers.contains(dialerPhoneNumber)) {
-        infoBuilder.clear();
+  private ArraySet<DialerPhoneNumber> findUnprocessableNumbers(
+      ImmutableMap<DialerPhoneNumber, Cp2Info> existingInfoMap) {
+    ArraySet<DialerPhoneNumber> unprocessableNumbers = new ArraySet<>();
+    PartitionedNumbers partitionedNumbers = new PartitionedNumbers(existingInfoMap.keySet());
+    if (partitionedNumbers.unformattableNumbers().size() > MAX_SUPPORTED_INVALID_NUMBERS) {
+      for (String invalidNumber : partitionedNumbers.unformattableNumbers()) {
+        unprocessableNumbers.addAll(
+            partitionedNumbers.dialerPhoneNumbersForUnformattable(invalidNumber));
       }
-
-      // If the DialerPhoneNumber didn't change, add the unchanged existing info.
-      newInfoMapBuilder.put(dialerPhoneNumber, infoBuilder.build());
     }
-    return newInfoMapBuilder.build();
+    return unprocessableNumbers;
   }
 
   @Override
@@ -391,6 +545,77 @@ public final class Cp2PhoneLookup implements PhoneLookup<Cp2Info> {
         });
   }
 
+  private ListenableFuture<Set<DialerPhoneNumber>> findNumbersToUpdate(
+      Map<DialerPhoneNumber, Cp2Info> existingInfoMap,
+      long lastModified,
+      Set<DialerPhoneNumber> deletedPhoneNumbers) {
+    return backgroundExecutorService.submit(
+        () -> {
+          Set<DialerPhoneNumber> updatedNumbers = new ArraySet<>();
+          Set<Long> contactIds = new ArraySet<>();
+          for (Entry<DialerPhoneNumber, Cp2Info> entry : existingInfoMap.entrySet()) {
+            DialerPhoneNumber dialerPhoneNumber = entry.getKey();
+            Cp2Info existingInfo = entry.getValue();
+
+            // If the number was deleted, we need to check if it was added to a new contact.
+            if (deletedPhoneNumbers.contains(dialerPhoneNumber)) {
+              updatedNumbers.add(dialerPhoneNumber);
+              continue;
+            }
+
+            // When the PhoneLookupHistory contains no information for a number, because for
+            // example the user just upgraded to the new UI, or cleared data, we need to check for
+            // updated info.
+            if (existingInfo.getCp2ContactInfoCount() == 0) {
+              updatedNumbers.add(dialerPhoneNumber);
+            } else {
+              // For each Cp2ContactInfo for each existing DialerPhoneNumber...
+              // Store the contact id if it exist, else automatically add the DialerPhoneNumber to
+              // our set of DialerPhoneNumbers we want to update.
+              for (Cp2ContactInfo cp2ContactInfo : existingInfo.getCp2ContactInfoList()) {
+                long existingContactId = cp2ContactInfo.getContactId();
+                if (existingContactId == 0) {
+                  // If the number doesn't have a contact id, for various reasons, we need to look
+                  // up the number to check if any exists. The various reasons this might happen
+                  // are:
+                  //  - An existing contact that wasn't in the call log is now in the call log.
+                  //  - A number was in the call log before but has now been added to a contact.
+                  //  - A number is in the call log, but isn't associated with any contact.
+                  updatedNumbers.add(dialerPhoneNumber);
+                } else {
+                  contactIds.add(cp2ContactInfo.getContactId());
+                }
+              }
+            }
+          }
+
+          // Query the contacts table and get those that whose
+          // Contacts.CONTACT_LAST_UPDATED_TIMESTAMP is after lastModified, such that Contacts._ID
+          // is in our set of contact IDs we build above.
+          if (!contactIds.isEmpty()) {
+            try (Cursor cursor = queryContactsTableForContacts(contactIds, lastModified)) {
+              int contactIdIndex = cursor.getColumnIndex(Contacts._ID);
+              int lastUpdatedIndex = cursor.getColumnIndex(Contacts.CONTACT_LAST_UPDATED_TIMESTAMP);
+              cursor.moveToPosition(-1);
+              while (cursor.moveToNext()) {
+                // Find the DialerPhoneNumber for each contact id and add it to our updated numbers
+                // set. These, along with our number not associated with any Cp2ContactInfo need to
+                // be updated.
+                long contactId = cursor.getLong(contactIdIndex);
+                updatedNumbers.addAll(
+                    findDialerPhoneNumbersContainingContactId(existingInfoMap, contactId));
+                long lastUpdatedTimestamp = cursor.getLong(lastUpdatedIndex);
+                if (currentLastTimestampProcessed == null
+                    || currentLastTimestampProcessed < lastUpdatedTimestamp) {
+                  currentLastTimestampProcessed = lastUpdatedTimestamp;
+                }
+              }
+            }
+          }
+          return updatedNumbers;
+        });
+  }
+
   @Override
   public void registerContentObservers(
       Context appContext, ContentObserverCallbacks contentObserverCallbacks) {
@@ -406,131 +631,139 @@ public final class Cp2PhoneLookup implements PhoneLookup<Cp2Info> {
    * @return Map of {@link DialerPhoneNumber} to {@link Cp2Info} with updated {@link
    *     Cp2ContactInfo}.
    */
-  private Map<DialerPhoneNumber, Set<Cp2ContactInfo>> buildMapForUpdatedOrAddedContacts(
-      ImmutableMap<DialerPhoneNumber, Cp2Info> existingInfoMap,
-      long lastModified,
-      Set<DialerPhoneNumber> deletedPhoneNumbers) {
-
-    // Start building a set of DialerPhoneNumbers that we want to update.
-    Set<DialerPhoneNumber> updatedNumbers = new ArraySet<>();
+  private ListenableFuture<Map<DialerPhoneNumber, Set<Cp2ContactInfo>>>
+      buildMapForUpdatedOrAddedContacts(
+          Map<DialerPhoneNumber, Cp2Info> existingInfoMap,
+          long lastModified,
+          Set<DialerPhoneNumber> deletedPhoneNumbers) {
+    // Start by building a set of DialerPhoneNumbers that we want to update.
+    ListenableFuture<Set<DialerPhoneNumber>> updatedNumbersFuture =
+        findNumbersToUpdate(existingInfoMap, lastModified, deletedPhoneNumbers);
+
+    return Futures.transformAsync(
+        updatedNumbersFuture,
+        updatedNumbers -> {
+          if (updatedNumbers.isEmpty()) {
+            return Futures.immediateFuture(new ArrayMap<>());
+          }
 
-    Set<Long> contactIds = new ArraySet<>();
-    for (Entry<DialerPhoneNumber, Cp2Info> entry : existingInfoMap.entrySet()) {
-      DialerPhoneNumber dialerPhoneNumber = entry.getKey();
-      Cp2Info existingInfo = entry.getValue();
+          // Divide the numbers into those we can format to E164 and those we can't. Issue a single
+          // batch query for the E164 numbers against the PHONE table, and in parallel issue
+          // individual queries against PHONE_LOOKUP for each non-E164 number.
+          // TODO(zachh): These queries are inefficient without a lastModified column to filter on.
+          PartitionedNumbers partitionedNumbers =
+              new PartitionedNumbers(ImmutableSet.copyOf(updatedNumbers));
 
-      // If the number was deleted, we need to check if it was added to a new contact.
-      if (deletedPhoneNumbers.contains(dialerPhoneNumber)) {
-        updatedNumbers.add(dialerPhoneNumber);
-        continue;
-      }
+          ListenableFuture<Map<String, Set<Cp2ContactInfo>>> e164Future =
+              batchQueryForValidNumbers(partitionedNumbers.validE164Numbers());
 
-      /// When the PhoneLookupHistory contains no information for a number, because for example the
-      // user just upgraded to the new UI, or cleared data, we need to check for updated info.
-      if (existingInfo.getCp2ContactInfoCount() == 0) {
-        updatedNumbers.add(dialerPhoneNumber);
-      } else {
-        // For each Cp2ContactInfo for each existing DialerPhoneNumber...
-        // Store the contact id if it exist, else automatically add the DialerPhoneNumber to our
-        // set of DialerPhoneNumbers we want to update.
-        for (Cp2ContactInfo cp2ContactInfo : existingInfo.getCp2ContactInfoList()) {
-          long existingContactId = cp2ContactInfo.getContactId();
-          if (existingContactId == 0) {
-            // If the number doesn't have a contact id, for various reasons, we need to look up the
-            // number to check if any exists. The various reasons this might happen are:
-            //  - An existing contact that wasn't in the call log is now in the call log.
-            //  - A number was in the call log before but has now been added to a contact.
-            //  - A number is in the call log, but isn't associated with any contact.
-            updatedNumbers.add(dialerPhoneNumber);
-          } else {
-            contactIds.add(cp2ContactInfo.getContactId());
+          List<ListenableFuture<Set<Cp2ContactInfo>>> nonE164FuturesList = new ArrayList<>();
+          for (String invalidNumber : partitionedNumbers.unformattableNumbers()) {
+            nonE164FuturesList.add(individualQueryForInvalidNumber(invalidNumber));
           }
-        }
-      }
-    }
 
-    // Query the contacts table and get those that whose Contacts.CONTACT_LAST_UPDATED_TIMESTAMP is
-    // after lastModified, such that Contacts._ID is in our set of contact IDs we build above.
-    if (!contactIds.isEmpty()) {
-      try (Cursor cursor = queryContactsTableForContacts(contactIds, lastModified)) {
-        int contactIdIndex = cursor.getColumnIndex(Contacts._ID);
-        int lastUpdatedIndex = cursor.getColumnIndex(Contacts.CONTACT_LAST_UPDATED_TIMESTAMP);
-        cursor.moveToPosition(-1);
-        while (cursor.moveToNext()) {
-          // Find the DialerPhoneNumber for each contact id and add it to our updated numbers set.
-          // These, along with our number not associated with any Cp2ContactInfo need to be updated.
-          long contactId = cursor.getLong(contactIdIndex);
-          updatedNumbers.addAll(
-              findDialerPhoneNumbersContainingContactId(existingInfoMap, contactId));
-          long lastUpdatedTimestamp = cursor.getLong(lastUpdatedIndex);
-          if (currentLastTimestampProcessed == null
-              || currentLastTimestampProcessed < lastUpdatedTimestamp) {
-            currentLastTimestampProcessed = lastUpdatedTimestamp;
-          }
-        }
-      }
-    }
+          ListenableFuture<List<Set<Cp2ContactInfo>>> nonE164Future =
+              Futures.allAsList(nonE164FuturesList);
+
+          Callable<Map<DialerPhoneNumber, Set<Cp2ContactInfo>>> computeMap =
+              () -> {
+                // These get() calls are safe because we are using whenAllSucceed below.
+                Map<String, Set<Cp2ContactInfo>> e164Result = e164Future.get();
+                List<Set<Cp2ContactInfo>> non164Results = nonE164Future.get();
+
+                Map<DialerPhoneNumber, Set<Cp2ContactInfo>> map = new ArrayMap<>();
+
+                // First update the map with the E164 results.
+                for (Entry<String, Set<Cp2ContactInfo>> entry : e164Result.entrySet()) {
+                  String e164Number = entry.getKey();
+                  Set<Cp2ContactInfo> cp2ContactInfos = entry.getValue();
+
+                  Set<DialerPhoneNumber> dialerPhoneNumbers =
+                      partitionedNumbers.dialerPhoneNumbersForE164(e164Number);
+
+                  addInfo(map, dialerPhoneNumbers, cp2ContactInfos);
+
+                  // We are going to remove the numbers that we've handled so that we later can
+                  // detect numbers that weren't handled and therefore need to have their contact
+                  // information removed.
+                  updatedNumbers.removeAll(dialerPhoneNumbers);
+                }
+
+                // Next update the map with the non-E164 results.
+                int i = 0;
+                for (String unformattableNumber : partitionedNumbers.unformattableNumbers()) {
+                  Set<Cp2ContactInfo> cp2Infos = non164Results.get(i++);
+                  Set<DialerPhoneNumber> dialerPhoneNumbers =
+                      partitionedNumbers.dialerPhoneNumbersForUnformattable(unformattableNumber);
+
+                  addInfo(map, dialerPhoneNumbers, cp2Infos);
+
+                  // We are going to remove the numbers that we've handled so that we later can
+                  // detect numbers that weren't handled and therefore need to have their contact
+                  // information removed.
+                  updatedNumbers.removeAll(dialerPhoneNumbers);
+                }
+
+                // The leftovers in updatedNumbers that weren't removed are numbers that were
+                // previously associated with contacts, but are no longer. Remove the contact
+                // information for them.
+                for (DialerPhoneNumber dialerPhoneNumber : updatedNumbers) {
+                  map.put(dialerPhoneNumber, ImmutableSet.of());
+                }
+                return map;
+              };
+          return Futures.whenAllSucceed(e164Future, nonE164Future)
+              .call(computeMap, lightweightExecutorService);
+        },
+        lightweightExecutorService);
+  }
 
-    if (updatedNumbers.isEmpty()) {
-      return new ArrayMap<>();
-    }
+  private ListenableFuture<Map<String, Set<Cp2ContactInfo>>> batchQueryForValidNumbers(
+      Set<String> e164Numbers) {
+    return backgroundExecutorService.submit(
+        () -> {
+          Map<String, Set<Cp2ContactInfo>> cp2ContactInfosByNumber = new ArrayMap<>();
+          if (e164Numbers.isEmpty()) {
+            return cp2ContactInfosByNumber;
+          }
+          try (Cursor cursor = queryPhoneTableBasedOnE164(PHONE_PROJECTION, e164Numbers)) {
+            if (cursor == null) {
+              LogUtil.w("Cp2PhoneLookup.batchQueryForValidNumbers", "null cursor");
+            } else {
+              while (cursor.moveToNext()) {
+                String e164Number = cursor.getString(CP2_INFO_NORMALIZED_NUMBER_INDEX);
+                Set<Cp2ContactInfo> cp2ContactInfos = cp2ContactInfosByNumber.get(e164Number);
+                if (cp2ContactInfos == null) {
+                  cp2ContactInfos = new ArraySet<>();
+                  cp2ContactInfosByNumber.put(e164Number, cp2ContactInfos);
+                }
+                cp2ContactInfos.add(buildCp2ContactInfoFromPhoneCursor(appContext, cursor));
+              }
+            }
+          }
+          return cp2ContactInfosByNumber;
+        });
+  }
 
-    Map<DialerPhoneNumber, Set<Cp2ContactInfo>> map = new ArrayMap<>();
-
-    // Divide the numbers into those we can format to E164 and those we can't. Then run separate
-    // queries against the contacts table using the NORMALIZED_NUMBER and NUMBER columns.
-    // TODO(zachh): These queries are inefficient without a lastModified column to filter on.
-    PartitionedNumbers partitionedNumbers =
-        new PartitionedNumbers(ImmutableSet.copyOf(updatedNumbers));
-    if (!partitionedNumbers.validE164Numbers().isEmpty()) {
-      try (Cursor cursor =
-          queryPhoneTableBasedOnE164(CP2_INFO_PROJECTION, partitionedNumbers.validE164Numbers())) {
-        if (cursor == null) {
-          LogUtil.w("Cp2PhoneLookup.buildMapForUpdatedOrAddedContacts", "null cursor");
-        } else {
-          while (cursor.moveToNext()) {
-            String e164Number = cursor.getString(CP2_INFO_NORMALIZED_NUMBER_INDEX);
-            Set<DialerPhoneNumber> dialerPhoneNumbers =
-                partitionedNumbers.dialerPhoneNumbersForE164(e164Number);
-            Cp2ContactInfo info = buildCp2ContactInfoFromPhoneCursor(appContext, cursor);
-            addInfo(map, dialerPhoneNumbers, info);
-
-            // We are going to remove the numbers that we've handled so that we later can detect
-            // numbers that weren't handled and therefore need to have their contact information
-            // removed.
-            updatedNumbers.removeAll(dialerPhoneNumbers);
+  private ListenableFuture<Set<Cp2ContactInfo>> individualQueryForInvalidNumber(
+      String invalidNumber) {
+    return backgroundExecutorService.submit(
+        () -> {
+          Set<Cp2ContactInfo> cp2ContactInfos = new ArraySet<>();
+          if (invalidNumber.isEmpty()) {
+            return cp2ContactInfos;
           }
-        }
-      }
-    }
-    if (!partitionedNumbers.unformattableNumbers().isEmpty()) {
-      try (Cursor cursor =
-          queryPhoneTableBasedOnRawNumber(
-              CP2_INFO_PROJECTION, partitionedNumbers.unformattableNumbers())) {
-        if (cursor == null) {
-          LogUtil.w("Cp2PhoneLookup.buildMapForUpdatedOrAddedContacts", "null cursor");
-        } else {
-          while (cursor.moveToNext()) {
-            String unformattableNumber = cursor.getString(CP2_INFO_NUMBER_INDEX);
-            Set<DialerPhoneNumber> dialerPhoneNumbers =
-                partitionedNumbers.dialerPhoneNumbersForUnformattable(unformattableNumber);
-            Cp2ContactInfo info = buildCp2ContactInfoFromPhoneCursor(appContext, cursor);
-            addInfo(map, dialerPhoneNumbers, info);
-
-            // We are going to remove the numbers that we've handled so that we later can detect
-            // numbers that weren't handled and therefore need to have their contact information
-            // removed.
-            updatedNumbers.removeAll(dialerPhoneNumbers);
+          try (Cursor cursor = queryPhoneLookup(PHONE_LOOKUP_PROJECTION, invalidNumber)) {
+            if (cursor == null) {
+              LogUtil.w("Cp2PhoneLookup.individualQueryForInvalidNumber", "null cursor");
+            } else {
+              while (cursor.moveToNext()) {
+                cp2ContactInfos.add(buildCp2ContactInfoFromPhoneCursor(appContext, cursor));
+              }
+            }
           }
-        }
-      }
-    }
-    // The leftovers in updatedNumbers that weren't removed are numbers that were previously
-    // associated with contacts, but are no longer. Remove the contact information for them.
-    for (DialerPhoneNumber dialerPhoneNumber : updatedNumbers) {
-      map.put(dialerPhoneNumber, ImmutableSet.of());
-    }
-    return map;
+          return cp2ContactInfos;
+        });
   }
 
   /**
@@ -540,15 +773,14 @@ public final class Cp2PhoneLookup implements PhoneLookup<Cp2Info> {
   private static void addInfo(
       Map<DialerPhoneNumber, Set<Cp2ContactInfo>> map,
       Set<DialerPhoneNumber> dialerPhoneNumbers,
-      Cp2ContactInfo cp2ContactInfo) {
+      Set<Cp2ContactInfo> cp2ContactInfos) {
     for (DialerPhoneNumber dialerPhoneNumber : dialerPhoneNumbers) {
-      if (map.containsKey(dialerPhoneNumber)) {
-        map.get(dialerPhoneNumber).add(cp2ContactInfo);
-      } else {
-        Set<Cp2ContactInfo> cp2ContactInfos = new ArraySet<>();
-        cp2ContactInfos.add(cp2ContactInfo);
-        map.put(dialerPhoneNumber, cp2ContactInfos);
+      Set<Cp2ContactInfo> existingInfos = map.get(dialerPhoneNumber);
+      if (existingInfos == null) {
+        existingInfos = new ArraySet<>();
+        map.put(dialerPhoneNumber, existingInfos);
       }
+      existingInfos.addAll(cp2ContactInfos);
     }
   }
 
@@ -563,20 +795,15 @@ public final class Cp2PhoneLookup implements PhoneLookup<Cp2Info> {
             null);
   }
 
-  private Cursor queryPhoneTableBasedOnRawNumber(
-      String[] projection, Set<String> unformattableNumbers) {
-    return appContext
-        .getContentResolver()
-        .query(
-            Phone.CONTENT_URI,
-            projection,
-            Phone.NUMBER + " IN (" + questionMarks(unformattableNumbers.size()) + ")",
-            unformattableNumbers.toArray(new String[unformattableNumbers.size()]),
-            null);
+  private Cursor queryPhoneLookup(String[] projection, String rawNumber) {
+    Uri uri =
+        Uri.withAppendedPath(
+            ContactsContract.PhoneLookup.CONTENT_FILTER_URI, Uri.encode(rawNumber));
+    return appContext.getContentResolver().query(uri, projection, null, null, null);
   }
 
   /**
-   * @param cursor with projection {@link #CP2_INFO_PROJECTION}.
+   * @param cursor with projection {@link #PHONE_PROJECTION}.
    * @return new {@link Cp2ContactInfo} based on current row of {@code cursor}.
    */
   private static Cp2ContactInfo buildCp2ContactInfoFromPhoneCursor(
@@ -613,17 +840,21 @@ public final class Cp2PhoneLookup implements PhoneLookup<Cp2Info> {
   }
 
   /** Returns set of DialerPhoneNumbers that were associated with now deleted contacts. */
-  private Set<DialerPhoneNumber> getDeletedPhoneNumbers(
+  private ListenableFuture<Set<DialerPhoneNumber>> getDeletedPhoneNumbers(
       ImmutableMap<DialerPhoneNumber, Cp2Info> existingInfoMap, long lastModified) {
-    // Build set of all contact IDs from our existing data. We're going to use this set to query
-    // against the DeletedContacts table and see if any of them were deleted.
-    Set<Long> contactIds = findContactIdsIn(existingInfoMap);
-
-    // Start building a set of DialerPhoneNumbers that were associated with now deleted contacts.
-    try (Cursor cursor = queryDeletedContacts(contactIds, lastModified)) {
-      // We now have a cursor/list of contact IDs that were associated with deleted contacts.
-      return findDeletedPhoneNumbersIn(existingInfoMap, cursor);
-    }
+    return backgroundExecutorService.submit(
+        () -> {
+          // Build set of all contact IDs from our existing data. We're going to use this set to
+          // query against the DeletedContacts table and see if any of them were deleted.
+          Set<Long> contactIds = findContactIdsIn(existingInfoMap);
+
+          // Start building a set of DialerPhoneNumbers that were associated with now deleted
+          // contacts.
+          try (Cursor cursor = queryDeletedContacts(contactIds, lastModified)) {
+            // We now have a cursor/list of contact IDs that were associated with deleted contacts.
+            return findDeletedPhoneNumbersIn(existingInfoMap, cursor);
+          }
+        });
   }
 
   private Set<Long> findContactIdsIn(ImmutableMap<DialerPhoneNumber, Cp2Info> map) {
@@ -683,7 +914,7 @@ public final class Cp2PhoneLookup implements PhoneLookup<Cp2Info> {
   }
 
   private static Set<DialerPhoneNumber> findDialerPhoneNumbersContainingContactId(
-      ImmutableMap<DialerPhoneNumber, Cp2Info> existingInfoMap, long contactId) {
+      Map<DialerPhoneNumber, Cp2Info> existingInfoMap, long contactId) {
     Set<DialerPhoneNumber> matches = new ArraySet<>();
     for (Entry<DialerPhoneNumber, Cp2Info> entry : existingInfoMap.entrySet()) {
       for (Cp2ContactInfo cp2ContactInfo : entry.getValue().getCp2ContactInfoList()) {
diff --git a/java/com/android/dialer/phonelookup/phone_lookup_info.proto b/java/com/android/dialer/phonelookup/phone_lookup_info.proto
index 75423b9ee..6662646aa 100644
--- a/java/com/android/dialer/phonelookup/phone_lookup_info.proto
+++ b/java/com/android/dialer/phonelookup/phone_lookup_info.proto
@@ -43,6 +43,12 @@ message PhoneLookupInfo {
     //
     // Empty if there is no CP2 contact information for the number.
     repeated Cp2ContactInfo cp2_contact_info = 1;
+
+    // The information for this number is incomplete. This can happen when the
+    // call log is requested to be updated but there are many invalid numbers
+    // and the update cannot be performed efficiently. In this case, the call
+    // log needs to query for the CP2 information at render time.
+    optional bool is_incomplete = 2;
   }
   optional Cp2Info cp2_info = 1;