remove 'toolkit' prefix (github#525)

* remove 'toolkit' prefix

* remove 'toolkit' prefix

api/distinct_count.md

@@ -22,7 +22,7 @@ This example retrieves the distinct values from a hyperloglog
 called `hyperloglog`:
 
 ``` sql
-SELECT toolkit.distinct_count(toolkit.hyperloglog(64, data))
+SELECT distinct_count(hyperloglog(64, data))
 FROM generate_series(1, 100) data
 
  distinct_count

api/hyperloglog.md

@@ -29,14 +29,14 @@ called `weights` that holds DOUBLE PRECISION values. This command returns a
 digest over that column:
 
 ``` sql
-SELECT toolkit.hyperloglog(64, weights) FROM samples;
+SELECT hyperloglog(64, weights) FROM samples;
 ```
 
 Alternatively, you can build a view from the aggregate that you can pass to
 other `tdigest` functions:
 
 ``` sql
-CREATE VIEW digest AS SELECT toolkit.hyperloglog(64, data) FROM samples;
+CREATE VIEW digest AS SELECT hyperloglog(64, data) FROM samples;
 ```
 
 

api/rollup-hyperloglog.md

@@ -27,11 +27,11 @@ For more information about approximate count distinct functions, see the
 ## Sample usage
 
 ```SQL
-SELECT toolkit.distinct_count(toolkit.rollup(logs))
+SELECT distinct_count(rollup(logs))
 FROM (
-    (SELECT toolkit.hyperloglog(32, v::text) logs FROM generate_series(1, 100) v)
+    (SELECT hyperloglog(32, v::text) logs FROM generate_series(1, 100) v)
     UNION ALL
-    (SELECT toolkit.hyperloglog(32, v::text) FROM generate_series(50, 150) v)
+    (SELECT hyperloglog(32, v::text) FROM generate_series(50, 150) v)
 ) hll;
  count
 -------

api/stderror.md

@@ -40,7 +40,7 @@ For more information about approximate count distinct functions, see the
 This examples retrieves the standard error from a hyperloglog called `hyperloglog`:
 
 ``` sql
-SELECT toolkit.stderror(toolkit.hyperloglog(64, data))
+SELECT stderror(hyperloglog(64, data))
 FROM generate_series(1, 100) data
 
  stderror

timescaledb/how-to-guides/hyperfunctions/counter-aggs.md

@@ -41,8 +41,8 @@ CREATE TABLE example (
     counter increased by a larger or smaller amount:
 ```sql
 SELECT measure_id,
-    toolkit.delta(
-        toolkit.counter_agg(ts, val)
+    delta(
+        counter_agg(ts, val)
     )
 FROM example
 GROUP BY measure_id;
@@ -51,8 +51,8 @@ GROUP BY measure_id;
 ```sql
 SELECT measure_id,
     time_bucket('15 min'::interval, ts) as bucket,
-    toolkit.delta(
-        toolkit.counter_agg(ts, val)
+    delta(
+        counter_agg(ts, val)
     )
 FROM example
 GROUP BY measure_id, time_bucket('15 min'::interval, ts);
@@ -87,11 +87,11 @@ going on in each part.
     with t as (
         SELECT measure_id,
             time_bucket('15 min'::interval, ts) as bucket,
-            toolkit.counter_agg(ts, val, bounds => toolkit.time_bucket_range('15 min'::interval, ts))
+            counter_agg(ts, val, bounds => time_bucket_range('15 min'::interval, ts))
         FROM example
         GROUP BY measure_id, time_bucket('15 min'::interval, ts))
     SELECT time_bucket,
-        toolkit.extrapolated_delta(counter_agg, method => 'prometheus')
+        extrapolated_delta(counter_agg, method => 'prometheus')
     FROM t ;
     ```
 
@@ -121,7 +121,7 @@ out of it.
     WITH (timescaledb.continuous)
     AS SELECT measure_id,
         time_bucket('15 min'::interval, ts) as bucket,
-        toolkit.counter_agg(ts, val, bounds => time_bucket_range('15 min'::interval, ts))
+        counter_agg(ts, val, bounds => time_bucket_range('15 min'::interval, ts))
     FROM example
     GROUP BY measure_id, time_bucket('15 min'::interval, ts);
     ```
@@ -131,8 +131,8 @@ out of it.
     SELECT
         measure_id,
         time_bucket('1 day'::interval, bucket),
-        toolkit.delta(
-            toolkit.rollup(counter_agg)
+        delta(
+            rollup(counter_agg)
         )
     FROM example_15
     GROUP BY measure_id, time_bucket('1 day'::interval, bucket);