demo polish

reference/function/aggregation.md

@@ -862,7 +862,8 @@ Suppose we want to find all the distinct sky cover types observed in the weather
 tablein our public demo:
 
 ```questdb-sql title="string_distinct_agg example" demo
-SELECT string_distinct_agg(skyCover, ',') AS distinct_sky_covers FROM weather;
+SELECT string_distinct_agg(skyCover, ',') AS distinct_sky_covers
+FROM weather;
 ```
 
 This query will return a single string containing all the distinct skyCover

reference/function/date-time.md

@@ -457,7 +457,7 @@ Return value type is `interval`.
 
 **Examples:**
 
-```questdb-sql title="Construct an interval"
+```questdb-sql title="Construct an interval" demo
 SELECT interval('2024-10-08T11:09:47.573Z', '2024-10-09T11:09:47.573Z')
 ```
 
@@ -479,7 +479,7 @@ Return value type is `timestamp`.
 
 **Examples:**
 
-```questdb-sql title="Extract an interval lower bound"
+```questdb-sql title="Extract an interval lower bound" demo
 SELECT
   interval_start(
     interval('2024-10-08T11:09:47.573Z', '2024-10-09T11:09:47.573Z')
@@ -504,7 +504,7 @@ Return value type is `timestamp`.
 
 **Examples:**
 
-```questdb-sql title="Extract an interval upper bound"
+```questdb-sql title="Extract an interval upper bound" demo
 SELECT
   interval_end(
     interval('2024-10-08T11:09:47.573Z', '2024-10-09T11:09:47.573Z')
@@ -530,8 +530,10 @@ Return value type is `boolean`
 
 **Examples:**
 
-```questdb-sql
-SELECT year(ts), is_leap_year(ts) FROM myTable;
+```questdb-sql title="Simple example" demo
+SELECT year(timestamp), is_leap_year(timestamp)
+FROM trades
+limit -1;
 ```
 
 | year | is_leap_year |
@@ -649,9 +651,10 @@ Return value type is `int`
 
 **Examples:**
 
-```questdb-sql title="Minute of the hour"
-SELECT minute(to_timestamp('2020-03-01:15:43:21', 'yyyy-MM-dd:HH:mm:ss'))
-FROM long_sequence(1);
+```questdb-sql title="Minute of the hour" demo
+SELECT minute(to_timestamp('2022-03-01:15:43:21', 'yyyy-MM-dd:HH:mm:ss'))
+FROM trades
+LIMIT -1;
 ```
 
 | minute |
@@ -854,8 +857,7 @@ Return value is of type `interval`.
 
 **Examples:**
 
-```questdb-sql title="Using today"
-
+```questdb-sql title="Using today" demo
 SELECT today() as today, today('CEST') as adjusted;
 ```
 

reference/operators/date-time.md

@@ -28,8 +28,8 @@ is interchangeable, meaning `BETWEEN X AND Y` is equivalent to
 #### Examples
 
 ```questdb-sql title="Explicit range"
-SELECT * FROM scores
-WHERE ts BETWEEN '2018-01-01T00:00:23.000000Z' AND '2018-01-01T00:00:23.500000Z';
+SELECT * FROM trades
+WHERE timestamp BETWEEN '2022-01-01T00:00:23.000000Z' AND '2023-01-01T00:00:23.500000Z';
 ```
 
 This query returns all records within the specified timestamp range:
@@ -43,9 +43,9 @@ This query returns all records within the specified timestamp range:
 The `BETWEEN` operator can also accept non-constant bounds. For instance, the
 following query returns all records older than one year from the current date:
 
-```questdb-sql title="One year before current date"
-SELECT * FROM scores
-WHERE ts BETWEEN to_str(now(), 'yyyy-MM-dd')
+```questdb-sql title="One year before current date" demo
+SELECT * FROM trades
+WHERE timestamp BETWEEN to_str(now(), 'yyyy-MM-dd')
 AND dateadd('y', -1, to_str(now(), 'yyyy-MM-dd'));
 ```
 
@@ -58,7 +58,7 @@ The result set for this query would be:
 | 2018-12-31T23:59:59.999999Z | 115.8 |
 
 ```questdb-sql title="Results between two specific timestamps"
-SELECT * FROM scores WHERE ts BETWEEN '2018-05-23T12:15:00.000000Z' AND '2018-05-23T12:16:00.000000Z';
+SELECT * FROM trades WHERE ts BETWEEN '2022-05-23T12:15:00.000000Z' AND '2023-05-23T12:16:00.000000Z';
 ```
 
 This query returns all records from the 15th minute of 12 PM on May 23, 2018:
@@ -206,9 +206,10 @@ LIMIT -1
 
 If we adjust the interval to be not in range, we get no result:
 
-```questdb-sql title="Check if timestamp is in interval failure"
-SELECT true as is_in_interval FROM long_sequence(1)
-WHERE '2018-05-17T00:00:00Z'::timestamp IN interval('2015', '2016')
+```questdb-sql title="Check if timestamp is in interval failure" demo
+SELECT true as is_in_interval FROM trades
+WHERE '2022-05-17T00:00:00Z'::timestamp IN interval('2022', '2023')
+LIMIT -1;
 ```
 
 | is_in_interval |