com presentations: Rename ensureIndex to createIndex: slides/mongodb/finding-food-import-mongo-shell.xml slides/mongodb/geo-indexes.xml slides/mongodb/idx-covered.xml slides/mongodb/idx-create.xml slides/mongodb/idx-geo-geohash.xml slides/mongodb/idx-geo.xml slides/mongodb/idx-multi-key.xml slides/mongodb/idx-or.xml slides/mongodb/idx-sparse.xml slides/mongodb/idx-unique.xml slides/mongodb/idx-which-one-is-picked.xml slides/mongodb/indexes-geo.xm

diff --git a/slides/mongodb/finding-food-import-mongo-shell.xml b/slides/mongodb/finding-food-import-mongo-shell.xml
index 1b2591f..3a4ac76 100644
--- a/slides/mongodb/finding-food-import-mongo-shell.xml
+++ b/slides/mongodb/finding-food-import-mongo-shell.xml
@@ -11,9 +11,9 @@ doc = {
         'oneway' : 'yes'
     }
 };
-db.poi.ensureIndex( { 'name' : 1 } );
-db.poi.ensureIndex( { 'tags.highway' : 1 } );
-db.poi.ensureIndex( { 'tags.oneway' : 1 } );
+db.poi.createIndex( { 'name' : 1 } );
+db.poi.createIndex( { 'tags.highway' : 1 } );
+db.poi.createIndex( { 'tags.oneway' : 1 } );
 
 // Road with name=Strand
 db.poi.find( { 'name' : 'Strand' } );
@@ -34,7 +34,7 @@ db.poi.find( { 'tags.highway' : { '$exists' :  1 } } );
         { 'k' : 'oneway', 'v' : 'yes' }
     }
 );
-db.poi.ensureIndex( { 'tags.v' : 1, 'tags.k' : 1 } );
+db.poi.createIndex( { 'tags.v' : 1, 'tags.k' : 1 } );
 
 // Road with name=Strand
 db.poi.find( {
@@ -58,7 +58,7 @@ db.poi.find( { 'tags.k' : 'highway' } );
         'oneway=yes'
     }
 );
-db.poi.ensureIndex( { 'tags' : 1 } );
+db.poi.createIndex( { 'tags' : 1 } );
 
 // Road with name=Strand
 db.poi.find( { 'tags' : 'name=Strand' } );
diff --git a/slides/mongodb/geo-indexes.xml b/slides/mongodb/geo-indexes.xml
index 17b42d5..364d636 100644
--- a/slides/mongodb/geo-indexes.xml
+++ b/slides/mongodb/geo-indexes.xml
@@ -22,18 +22,18 @@ db.poiConcat.find( {
     <blurb>*No index:*<br/> BasicCursor, n: 40, nscannedObjects: 2802711, millis: 1246</blurb>
 </div>
 <div effect="fade-in">
-    <blurb>*ensureIndex( { ts: 1 } )*<br/>BtreeCursor ts_1, n: 40, nscannedObjects: 3326, millis: 46</blurb>
+    <blurb>*createIndex( { ts: 1 } )*<br/>BtreeCursor ts_1, n: 40, nscannedObjects: 3326, millis: 46</blurb>
 </div>
 <div effect="fade-in-out">
-    <blurb>*ensureIndex( { l: '2dsphere' } )*<br/>S2Cursor, n: 40, nscannedObjects: 196884, millis: 257</blurb>
+    <blurb>*createIndex( { l: '2dsphere' } )*<br/>S2Cursor, n: 40, nscannedObjects: 196884, millis: 257</blurb>
 </div>
 <div effect="fade-in-out">
-    <blurb>*ensureIndex( { ts: 1} )* &amp;&amp; *ensureIndex( { l: '2dsphere' } )*<br/>S2Cursor, n: 40, nscannedObjects: 196884, millis: 256</blurb>
+    <blurb>*createIndex( { ts: 1} )* &amp;&amp; *createIndex( { l: '2dsphere' } )*<br/>S2Cursor, n: 40, nscannedObjects: 196884, millis: 256</blurb>
 </div>
 <div effect="fade-in-out">
-    <blurb>*ensureIndex( { l: '2dsphere', ts: 1 } )*<br/>S2Cursor, n: 40, nscannedObjects: 523, millis: 8</blurb>
+    <blurb>*createIndex( { l: '2dsphere', ts: 1 } )*<br/>S2Cursor, n: 40, nscannedObjects: 523, millis: 8</blurb>
 </div>
 <div effect="fade-in">
-    <blurb>*ensureIndex( { ts: 1, l: '2dsphere' } )*<br/>S2Cursor, n: 40, nscannedObjects: 523, millis: 8</blurb>
+    <blurb>*createIndex( { ts: 1, l: '2dsphere' } )*<br/>S2Cursor, n: 40, nscannedObjects: 523, millis: 8</blurb>
 </div>
 </slide>
diff --git a/slides/mongodb/idx-covered.xml b/slides/mongodb/idx-covered.xml
index baead0c..d2cc193 100644
--- a/slides/mongodb/idx-covered.xml
+++ b/slides/mongodb/idx-covered.xml
@@ -4,7 +4,7 @@
 <blurb>MongoDB can return data from the *index only*:</blurb>
 
 <example inline="1">
-db.cities.ensureIndex( { country_code: 1, name: 1 } );
+db.cities.createIndex( { country_code: 1, name: 1 } );
 db.cities.find(
 	{ country_code: 'NL' }, *{ country_code: 1, name: 1, _id: 0 }*
 ).explain();
diff --git a/slides/mongodb/idx-create.xml b/slides/mongodb/idx-create.xml
index dc52580..4154acf 100644
--- a/slides/mongodb/idx-create.xml
+++ b/slides/mongodb/idx-create.xml
@@ -1,16 +1,16 @@
 <slide>
 <title>Creating Indexes</title>
 
-<blurb>The %_id% field is always indexed. Additional indexes can be created with %ensureIndex%:</blurb>
+<blurb>The %_id% field is always indexed. Additional indexes can be created with %createIndex%:</blurb>
 
 <example>
 // Create an index on the name attribute
-db.cities.ensureIndex( { name: 1 } );
+db.cities.createIndex( { name: 1 } );
 
 // Create a compound index on country code and feature code
-db.cities.ensureIndex( { country_code: 1, feature_code: 1 } );
+db.cities.createIndex( { country_code: 1, feature_code: 1 } );
 
 // Create an index on the area field of timezone:
-db.cities.ensureIndex( { 'timezone.area': 1 } );
+db.cities.createIndex( { 'timezone.area': 1 } );
 </example>
 </slide>
diff --git a/slides/mongodb/idx-geo-geohash.xml b/slides/mongodb/idx-geo-geohash.xml
index d0d8452..051b486 100644
--- a/slides/mongodb/idx-geo-geohash.xml
+++ b/slides/mongodb/idx-geo-geohash.xml
@@ -26,7 +26,7 @@
 </div>
 
 <div effect="fade-in">
-<example inline="1">db.cities.ensureIndex( { location: '2d', *bits: 4* } )</example>
+<example inline="1">db.cities.createIndex( { location: '2d', *bits: 4* } )</example>
 <list>
 	<bullet>Default %bits% is 26, about 0.3 meter resolution (~½ * 40000 / 2^26~)</bullet>
 </list>
diff --git a/slides/mongodb/idx-geo.xml b/slides/mongodb/idx-geo.xml
index a0c56f6..f6309e5 100644
--- a/slides/mongodb/idx-geo.xml
+++ b/slides/mongodb/idx-geo.xml
@@ -2,12 +2,12 @@
 <title>Geospatial indexes</title>
 
 <blurb>MongoDB supports indexes on two dimensional fields:</blurb>
-<example>db.cities.ensureIndex( { location: '2d' } )</example>
+<example>db.cities.createIndex( { location: '2d' } )</example>
 
 <blurb>and</blurb>
 
 <blurb>MongoDB supports indexes on *geospatial fields*:</blurb>
-<example>db.cities.ensureIndex( { location: '2dsphere' } )</example>
+<example>db.cities.createIndex( { location: '2dsphere' } )</example>
 
 
 </slide>
diff --git a/slides/mongodb/idx-multi-key.xml b/slides/mongodb/idx-multi-key.xml
index 47e251d..1e195ca 100644
--- a/slides/mongodb/idx-multi-key.xml
+++ b/slides/mongodb/idx-multi-key.xml
@@ -8,7 +8,7 @@
 
 <blurb>Create as a normal index:</blurb>
 <example>
-db.cities.ensureIndex( { alternatenames: 1 } );
+db.cities.createIndex( { alternatenames: 1 } );
 </example>
 
 <blurb>The %isMultiKey% field is set to %true%:</blurb>
diff --git a/slides/mongodb/idx-or.xml b/slides/mongodb/idx-or.xml
index 0714e5f..d07e655 100644
--- a/slides/mongodb/idx-or.xml
+++ b/slides/mongodb/idx-or.xml
@@ -2,7 +2,7 @@
 <title>Indexes with $or</title>
 
 <example inline="1">
-db.cities.ensureIndex( { country_code: 1 } );
+db.cities.createIndex( { country_code: 1 } );
 db.cities.find( { *$or*: [|f10000|{country_code: 'NL'}|, |00cc00|{country_code: 'BE'}|] } ).explain();
 </example>
 <example inline="1">
diff --git a/slides/mongodb/idx-sparse.xml b/slides/mongodb/idx-sparse.xml
index e60979f..bc490c4 100644
--- a/slides/mongodb/idx-sparse.xml
+++ b/slides/mongodb/idx-sparse.xml
@@ -12,7 +12,7 @@
 
 <div effect="fade-in">
 <example inline="1">
-db.cities.ensureIndex( { admin1_code: 1 }, *{ sparse: true }* );
+db.cities.createIndex( { admin1_code: 1 }, *{ sparse: true }* );
 </example>
 <image filename="mongo-compound-index-sparse2.png"/>
 </div>
diff --git a/slides/mongodb/idx-unique.xml b/slides/mongodb/idx-unique.xml
index e6c548d..78afc4a 100644
--- a/slides/mongodb/idx-unique.xml
+++ b/slides/mongodb/idx-unique.xml
@@ -4,7 +4,7 @@
 <blurb>Unique indexes prevent multiple documents to match the same index key:</blurb>
 
 <example inline="1">
-> db.cities.ensureIndex( { country_code: 1, name: 1 }, *{ unique: true }* );
+> db.cities.createIndex( { country_code: 1, name: 1 }, *{ unique: true }* );
 </example>
 
 <div effect="fade-in">
@@ -19,7 +19,7 @@ demo.cities.$country_code_1_name_1  dup key: { : "AR", : "Mercedes" }
 <example>
 > db.cities.remove( { 'country_code': 'AR', name: 'Mercedes' } );
 
-> db.cities.ensureIndex( { country_code: 1, name: 1 }, { unique: true } );
+> db.cities.createIndex( { country_code: 1, name: 1 }, { unique: true } );
 
 E11000 duplicate key error index:
 demo.cities.$country_code_1_name_1  dup key: { : "AR", : "San Pedro" }
@@ -30,7 +30,7 @@ demo.cities.$country_code_1_name_1  dup key: { : "AR", : "San Pedro" }
 <blurb>You can force the index with *dropDups* (|ff9999|This could delete a lot of data!|):</blurb>
 
 <example inline="1">
-> db.cities.ensureIndex( { country_code: 1, name: 1 },
+> db.cities.createIndex( { country_code: 1, name: 1 },
                          { unique: true, *|f10000|dropDups : true|* } );
 </example>
 </div>
diff --git a/slides/mongodb/idx-which-one-is-picked.xml b/slides/mongodb/idx-which-one-is-picked.xml
index 767077a..3235120 100644
--- a/slides/mongodb/idx-which-one-is-picked.xml
+++ b/slides/mongodb/idx-which-one-is-picked.xml
@@ -8,8 +8,8 @@
 	<bullet>MongoDB will re-try plans once in a while</bullet>
 	<bullet>Indexes can be "hinted":
 <example>
-db.cities.ensureIndex( { population: 1, elevation: 1 } );
-db.cities.ensureIndex( { elevation: -1 } );
+db.cities.createIndex( { population: 1, elevation: 1 } );
+db.cities.createIndex( { elevation: -1 } );
 db.cities.find( { population: { $gte: 2000000 }, elevation: { $gte : 1654 } })
          .sort( { elevation: -1 } )
          .hint( { elevation: -1 } );</example>
diff --git a/slides/mongodb/indexes-geo.xml b/slides/mongodb/indexes-geo.xml
index 51b977c..00043e3 100644
--- a/slides/mongodb/indexes-geo.xml
+++ b/slides/mongodb/indexes-geo.xml
@@ -6,7 +6,7 @@
 <example result="0"><![CDATA[<?php
 $m = new MongoClient; $c = $m->demo->pubs; $c->drop();
 
-$c->ensureIndex( [ 'l' => '2d' ] );
+$c->createIndex( [ 'l' => '2d' ] );
 $c->insert([ 'name' => 'Betsy Smith',   'l' => [ -0.193, 51.537 ] ]);
 $c->insert([ 'name' => 'London Tavern', 'l' => [ -0.202, 51.545 ] ]);
 
diff --git a/slides/mongodb/indexes3.xml b/slides/mongodb/indexes3.xml
index 4f9ade2..e5ee0ee 100644
--- a/slides/mongodb/indexes3.xml
+++ b/slides/mongodb/indexes3.xml
@@ -6,7 +6,7 @@ $m = new MongoClient;
 $c = $m->demo->elephpants;
 $c->drop();
 
-$c->ensureIndex( [ 'name' => 1 ] );
+$c->createIndex( [ 'name' => 1 ] );
 
 $c->insert( [ '_id' => 'ele1', 'name' => 'Jumbo' ] );
 $c->insert( [ '_id' => 'ele2', 'name' => 'Tantor' ] );
diff --git a/slides/mongodb/indexes4.xml b/slides/mongodb/indexes4.xml
index e432c01..168a6df 100644
--- a/slides/mongodb/indexes4.xml
+++ b/slides/mongodb/indexes4.xml
@@ -2,14 +2,14 @@
 <title>More about indexes</title>
 
 	<blurb>Compound indexes:</blurb>
-	<example>$myCol->ensureIndex( [ _id => 1, ts => -1 ] )</example>
+	<example>$myCol->createIndex( [ _id => 1, ts => -1 ] )</example>
 <break/>
 	<blurb>Indexes can be made on nested fields:</blurb>
-	<example>$myCol->ensureIndex( [ "article.title" => -1 ] )</example>
+	<example>$myCol->createIndex( [ "article.title" => -1 ] )</example>
 <break/>
 	<blurb>Indexes can be made on array values:</blurb>
 	<example><![CDATA[$myCol->insert( [ '_id' => 42, 'values' => [ 'fourty', 'two' ] ] );
-$myCol->ensureIndex( [ 'values' => 1 ] );]]>
+$myCol->createIndex( [ 'values' => 1 ] );]]>
 </example>
 <break/>
 	<blurb>Searching with regexp: %^%:</blurb>
diff --git a/slides/mongodb/osm-schema1.xml b/slides/mongodb/osm-schema1.xml
index bd16877..2e32a11 100644
--- a/slides/mongodb/osm-schema1.xml
+++ b/slides/mongodb/osm-schema1.xml
@@ -8,9 +8,9 @@
         'oneway' => 'yes'
     ]
 ];
-$db->poi->ensureIndex( [ 'tags.name' => 1 ] );
-$db->poi->ensureIndex( [ 'tags.highway' => 1 ] );
-$db->poi->ensureIndex( [ 'tags.oneway' => 1 ] );
+$db->poi->createIndex( [ 'tags.name' => 1 ] );
+$db->poi->createIndex( [ 'tags.highway' => 1 ] );
+$db->poi->createIndex( [ 'tags.oneway' => 1 ] );
 
 // Road with name=Strand
 $db->poi->find( [ 'tags.name' => 'Strand' ] );
diff --git a/slides/mongodb/osm-schema2.xml b/slides/mongodb/osm-schema2.xml
index 9b2ce73..2f1655e 100644
--- a/slides/mongodb/osm-schema2.xml
+++ b/slides/mongodb/osm-schema2.xml
@@ -8,7 +8,7 @@
         [ 'k' => 'oneway', 'v' => 'yes' ]
     ]
 ];
-$db->poi->ensureIndex( [ 'tags.v' => 1, 'tags.k' => 1 ] );
+$db->poi->createIndex( [ 'tags.v' => 1, 'tags.k' => 1 ] );
 
 // Road with name=Strand
 $db->poi->find( [
diff --git a/slides/mongodb/osm-schema3.xml b/slides/mongodb/osm-schema3.xml
index 9ca8895..339401d 100644
--- a/slides/mongodb/osm-schema3.xml
+++ b/slides/mongodb/osm-schema3.xml
@@ -8,7 +8,7 @@
         [ 'oneway' => 'yes' ],
     ]
 ];
-$db->poi->ensureIndex( [ 'tags' => 1 ] );
+$db->poi->createIndex( [ 'tags' => 1 ] );
 
 // Road with name=Strand
 $db->poi->find( [ 'tags' => [ 'name' => 'Strand' ] ] );
diff --git a/slides/mongodb/osm-schema4.xml b/slides/mongodb/osm-schema4.xml
index 47d6b58..9b081ef 100644
--- a/slides/mongodb/osm-schema4.xml
+++ b/slides/mongodb/osm-schema4.xml
@@ -8,7 +8,7 @@
         'oneway=yes'
     ]
 ];
-$db->poi->ensureIndex( [ 'tags' => 1 ] );
+$db->poi->createIndex( [ 'tags' => 1 ] );
 
 // Road with name=Strand
 $db->poi->find( [ 'tags' => 'name=Strand' ] );
diff --git a/slides/mongodb/osm-to-mongo-data3.xml b/slides/mongodb/osm-to-mongo-data3.xml
index 5d067bd..508b94f 100644
--- a/slides/mongodb/osm-to-mongo-data3.xml
+++ b/slides/mongodb/osm-to-mongo-data3.xml
@@ -19,7 +19,7 @@
 
 <div effect="fade-in">
 <blurb>We need an index for that:</blurb>
-<example>db.poi.ensureIndex( { "tags.amenity" : 1 } );</example>
+<example>db.poi.createIndex( { "tags.amenity" : 1 } );</example>
 <blurb>And the new "explain" output:</blurb>
 <example inline="1">db.poi.find( { 'tags.amenity' : 'pub' } ).explain();
 {
diff --git a/slides/mongodb/osm-to-mongo-data4.xml b/slides/mongodb/osm-to-mongo-data4.xml
index cf7f1a1..d700595 100644
--- a/slides/mongodb/osm-to-mongo-data4.xml
+++ b/slides/mongodb/osm-to-mongo-data4.xml
@@ -12,15 +12,15 @@
     }
 }
 </example>
-<example>db.poi.ensureIndex( { "tags.amenity" : 1 } );</example>
+<example>db.poi.createIndex( { "tags.amenity" : 1 } );</example>
 <div effect="fade-in">
-<example>db.poi.ensureIndex( { "tags.highway" : 1 } );</example>
+<example>db.poi.createIndex( { "tags.highway" : 1 } );</example>
 </div>
 <div effect="fade-in">
-<example>db.poi.ensureIndex( { "tags.ref" : 1 } );</example>
+<example>db.poi.createIndex( { "tags.ref" : 1 } );</example>
 </div>
 <div effect="fade-in">
-<example>db.poi.ensureIndex( { "tags.???" : 1 } );</example>
+<example>db.poi.createIndex( { "tags.???" : 1 } );</example>
 <list>
     <bullet>Lots of indexes make things slow</bullet>
     <bullet>Limited to 64 indexes</bullet>
diff --git a/slides/mongodb/text-create-index-php.xml b/slides/mongodb/text-create-index-php.xml
index a4911e2..3228e33 100644
--- a/slides/mongodb/text-create-index-php.xml
+++ b/slides/mongodb/text-create-index-php.xml
@@ -4,7 +4,7 @@
 <example><![CDATA[<?php
 $m = new MongoClient;
 
-$m->demo->articles->ensureIndex(
+$m->demo->articles->createIndex(
 	[ 'subject' => 'text', 'post' => 'text' ],
 	[ 'weights' => [ 'subject' => 10, 'post' => 5 ] ]
 );
diff --git a/slides/mongodb/text-create-index.xml b/slides/mongodb/text-create-index.xml
index 9f988a0..12f77b0 100644
--- a/slides/mongodb/text-create-index.xml
+++ b/slides/mongodb/text-create-index.xml
@@ -2,7 +2,7 @@
 <title>Create a Text Search Index</title>
 
 <example>
-db.articles.ensureIndex(
+db.articles.createIndex(
 	{ subject: "text", post: "text" },
 	{ weights: {subject: 10, post: 5} }
 );</example>
diff --git a/slides/mongodb/text-example.xml b/slides/mongodb/text-example.xml
index b481f66..e07305b 100644
--- a/slides/mongodb/text-example.xml
+++ b/slides/mongodb/text-example.xml
@@ -10,7 +10,7 @@ t.save( { _id: 1 , title: "1st post",
 t.save( { _id: 2 , title: "2nd post" , 
                      post: "this is my second blog entry." } );
 
-t.ensureIndex ( { title: "text", post: "text" },
+t.createIndex ( { title: "text", post: "text" },
                 { weights: {title: 10, post: 5}} );</example>
 </div>
 
diff --git a/slides/mongodb/text-index-options.xml b/slides/mongodb/text-index-options.xml
index cfc9772..b94ccef 100644
--- a/slides/mongodb/text-index-options.xml
+++ b/slides/mongodb/text-index-options.xml
@@ -5,14 +5,14 @@
 Basic, default weights:
 </blurb>
 <example>
-db.articles.ensureIndex( { subject: "text", post: "text" } );
+db.articles.createIndex( { subject: "text", post: "text" } );
 </example>
 
 <blurb>
 Explicit weights:
 </blurb>
 <example>
-db.articles.ensureIndex( { subject: "text", post: "text" },
+db.articles.createIndex( { subject: "text", post: "text" },
                          { weights: { "subject": 10 } } );
 </example>
 
@@ -20,14 +20,14 @@ db.articles.ensureIndex( { subject: "text", post: "text" },
 Wildcard field: text at any depth, default weights:
 </blurb>
 <example>
-db.articles.ensureIndex( { "$**": "text" } );
+db.articles.createIndex( { "$**": "text" } );
 </example>
 
 <blurb>
 Wildcard field: override default weights and explicit weights:
 </blurb>
 <example>
-db.articles.ensureIndex( { "$**": "text" },
+db.articles.createIndex( { "$**": "text" },
                          { weights: {"$**": 10, post: 5 } } );
 </example>
 </slide>
diff --git a/slides/mongodb/text-language-specific.xml b/slides/mongodb/text-language-specific.xml
index a395aeb..7730de7 100644
--- a/slides/mongodb/text-language-specific.xml
+++ b/slides/mongodb/text-language-specific.xml
@@ -7,7 +7,7 @@ t = db.search; t.drop();
 t.save( { _id: 1, title: "mi blog", post: "Este es un blog de prueba" } );
 t.save( { _id: 2, title: "cuchillos son divertido", post: "Es mi tercer blog stemmed" } );
 t.save( { _id: 3, title: "My fourth blog", post: "This stemmed blog is in english" } );
-t.ensureIndex( { title: "text", post: "text" }, *{ default_language: "spanish" }* );
+t.createIndex( { title: "text", post: "text" }, *{ default_language: "spanish" }* );
 </example>
 </div>
 
diff --git a/slides/mongodb/write-import-script-result.xml b/slides/mongodb/write-import-script-result.xml
index 11266e0..a463930 100644
--- a/slides/mongodb/write-import-script-result.xml
+++ b/slides/mongodb/write-import-script-result.xml
@@ -17,8 +17,8 @@ $d = $m->demo->poi;
 $d->drop();
 
 // 3 ADD: Create an index on "name" and a "2d" index on "loc"
-$d->ensureIndex( [ 'loc' => '2d' ] );
-$d->ensureIndex( [ 'name' => 1 ] );
+$d->createIndex( [ 'loc' => '2d' ] );
+$d->createIndex( [ 'name' => 1 ] );
 
 var_dump($d->getIndexInfo());
 ]]></example>
diff --git a/slides/mongodb/write-import-script.xml b/slides/mongodb/write-import-script.xml
index 6e23ae6..81222e5 100644
--- a/slides/mongodb/write-import-script.xml
+++ b/slides/mongodb/write-import-script.xml
@@ -17,8 +17,8 @@ $d =
 $d->
 
 // 3 ADD: Create an index on "name" and a "2d" index on "loc"
-$d->ensureIndex(
-$d->ensureIndex(
+$d->createIndex(
+$d->createIndex(
 
 var_dump($d->getIndexInfo());
 ]]></example>
diff --git a/slides/mongodb/write-import-script2.xml b/slides/mongodb/write-import-script2.xml
index 251b506..855aa95 100644
--- a/slides/mongodb/write-import-script2.xml
+++ b/slides/mongodb/write-import-script2.xml
@@ -7,8 +7,8 @@
 </list>
 <example><![CDATA[<?php
 // 1 ADD: Indexes for the tags
-$d->ensureIndex( [ 'tags_indexed' => 1 ] );
-$d->ensureIndex( [ 'tags_indexed.k' => 1, 'tags_indexed.v' => 1 ] );
+$d->createIndex( [ 'tags_indexed' => 1 ] );
+$d->createIndex( [ 'tags_indexed.k' => 1, 'tags_indexed.v' => 1 ] );
 
 var_dump($d->getIndexInfo());
 ]]></example>