Mysql sensors that measure the length of the text perform conversion to a text type before calling the LENGTH function.

Author: piotrczarnas

home/sensors/column/text/text_length_above_max_length_count/mysql.sql.jinja2

@@ -3,7 +3,7 @@
 SELECT
     SUM(
         CASE
-            WHEN LENGTH({{ lib.render_target_column('analyzed_table')}}) > {{(parameters.max_length)}}
+            WHEN LENGTH(CAST({{ lib.render_target_column('analyzed_table')}} AS CHAR)) > {{(parameters.max_length)}}
                 THEN 1
             ELSE 0
         END

home/sensors/column/text/text_length_above_max_length_percent/mysql.sql.jinja2

@@ -5,7 +5,7 @@ SELECT
         WHEN COUNT({{ lib.render_target_column('analyzed_table') }}) = 0 THEN 0.0
         ELSE 100.0 * SUM(
             CASE
-                WHEN LENGTH({{ lib.render_target_column('analyzed_table')}}) > {{(parameters.max_length)}}
+                WHEN LENGTH(CAST({{ lib.render_target_column('analyzed_table')}} AS CHAR)) > {{(parameters.max_length)}}
                     THEN 1
                 ELSE 0
             END

home/sensors/column/text/text_length_below_min_length_count/mysql.sql.jinja2

@@ -3,7 +3,7 @@
 SELECT
     SUM(
         CASE
-            WHEN LENGTH({{ lib.render_target_column('analyzed_table')}}) < {{(parameters.min_length)}}
+            WHEN LENGTH(CAST({{ lib.render_target_column('analyzed_table')}} AS CHAR)) < {{(parameters.min_length)}}
                 THEN 1
             ELSE 0
         END

home/sensors/column/text/text_length_below_min_length_percent/mysql.sql.jinja2

@@ -5,7 +5,7 @@ SELECT
         WHEN COUNT({{ lib.render_target_column('analyzed_table') }}) = 0 THEN 0.0
         ELSE 100.0 * SUM(
             CASE
-                WHEN LENGTH({{ lib.render_target_column('analyzed_table')}}) < {{(parameters.min_length)}}
+                WHEN LENGTH(CAST({{ lib.render_target_column('analyzed_table')}} AS CHAR)) < {{(parameters.min_length)}}
                     THEN 1
                 ELSE 0
             END

home/sensors/column/text/text_length_in_range_percent/mysql.sql.jinja2

@@ -6,7 +6,7 @@ SELECT
         ELSE
             100.0 * SUM(
                 CASE
-                    WHEN LENGTH( {{ lib.render_target_column('analyzed_table')}} ) BETWEEN {{parameters.min_length}} AND {{parameters.max_length}} THEN 1
+                    WHEN LENGTH(CAST({{ lib.render_target_column('analyzed_table')}} AS CHAR)) BETWEEN {{parameters.min_length}} AND {{parameters.max_length}} THEN 1
                     ELSE 0
                 END
         ) / COUNT({{ lib.render_target_column('analyzed_table') }})

home/sensors/column/text/text_max_length/mysql.sql.jinja2

@@ -2,7 +2,7 @@
 
 SELECT
     MAX(
-        LENGTH({{ lib.render_target_column('analyzed_table') }})
+        LENGTH(CAST({{ lib.render_target_column('analyzed_table') }} AS CHAR))
     ) AS actual_value
     {{- lib.render_data_grouping_projections('analyzed_table') }}
     {{- lib.render_time_dimension_projection('analyzed_table') }}

home/sensors/column/text/text_mean_length/mysql.sql.jinja2

@@ -2,7 +2,7 @@
 
 SELECT
     AVG(
-        LENGTH({{ lib.render_target_column('analyzed_table') }})
+        LENGTH(CAST({{ lib.render_target_column('analyzed_table') }} AS CHAR))
     ) AS actual_value
     {{- lib.render_data_grouping_projections('analyzed_table') }}
     {{- lib.render_time_dimension_projection('analyzed_table') }}

home/sensors/column/text/text_min_length/mysql.sql.jinja2

@@ -2,7 +2,7 @@
 
 SELECT
     MIN(
-        LENGTH({{ lib.render_target_column('analyzed_table') }})
+        LENGTH(CAST({{ lib.render_target_column('analyzed_table') }} AS CHAR))
     ) AS actual_value
     {{- lib.render_data_grouping_projections('analyzed_table') }}
     {{- lib.render_time_dimension_projection('analyzed_table') }}