Documentation
Toggle Dark/Light/Auto modeToggle Dark/Light/Auto modeToggle Dark/Light/Auto modeBack to homepage

query_text

The query_text variable can be used in SQL Pre-hook only and is the text of the query at the time we arrive at the SQL Pre-hook. It is not necessarily what user initially submitted. For example, if REPLACE_TABLES fired before the SQL Pre-hook that uses query_text variable, the query_text variable will have text with replaced table names.

Syntax

{{query_text}}

Example

Create flow with the single SQL Pre-hook that uses query_text variable:

nori#COMPUTE_WH@(no database).(no schema)>CREATE OR REPLACE SUNDECK FLOW MY_FLOW
                                              PRE HOOK TRACK_ELAPSED_TIME
                                              ALWAYS
                                              SQL {
                                                'sqlText': 'insert 
                                                             into 
                                                              nori_db.public.elapsed_time(query_text, avg_time) 
                                                            select 
                                                              query_text,
                                                              avg(total_elapsed_time)
                                                            from 
                                                              snowflake.account_usage.query_history
                                                            where 
                                                              query_text = \'{{query_text}}\' 
                                                            group by query_text',
                                                'errorBehavior' : 'BYPASS'
                                              }
                                          ;

+------------------------------------------------------------------------------+
| status                                                                       |
|------------------------------------------------------------------------------|
| Flow MY_FLOW created. Use ‘DESCRIBE SUNDECK FLOW "MY_FLOW"’ for flow details |
+------------------------------------------------------------------------------+
1 Row(s) produced. 

Connect to it and run simple query that was preivously executed on this system:

nori#COMPUTE_WH@(no database).(no schema)>select count(*) from snowflake_sample_data.tpch_sf1.nation;
+----------+                                                                    
| COUNT(*) |
|----------|
|       25 |
+----------+
1 Row(s) produced. 

nori#COMPUTE_WH@(no database).(no schema)>select * from nori_db.public.elapsed_time;
+-------------------------------------------------------------+----------+      
| QUERY_TEXT                                                  | AVG_TIME |
|-------------------------------------------------------------+----------|
| select count(*) from snowflake_sample_data.tpch_sf1.nation; |       81 |
+-------------------------------------------------------------+----------+
1 Row(s) produced. 

Please note, that table nori_db.public.elapsed_time was created prior to query execution.