Limit height of logged results table to 500 px and make it scrollable

Author: amochin

src/DatabaseLibrary/query.py

@@ -869,13 +869,13 @@ def _log_query_results(self, col_names, result_rows, log_head: Optional[int] = N
         table_border = "2px solid rgb(140 140 140)"
         row_index_background_color = "#d6ecd4"
         row_index_text_color = "black"
-        msg = '<div style="max-width: 100%; overflow-x: auto;">'
+        msg = '<div style="max-width: 100%; overflow-x: auto; max-height: 500px; overflow-y: auto;">'
         msg += f'<table style="width: auto; border-collapse: collapse; border: {table_border}">'
         msg += f'<caption style="text-align: left; font-weight: bold; padding: 5px;">Query returned {len(result_rows)} rows</caption>'
         msg += "<tr>"
-        msg += f'<th scope="col" style="color:{row_index_text_color}; background-color: {row_index_background_color}; {cell_border_and_align}">Row</th>'
+        msg += f'<th scope="col" style="position: sticky; top: 0; color:{row_index_text_color}; background-color: {row_index_background_color}; {cell_border_and_align}">Row</th>'
         for col in col_names:
-            msg += f'<th scope="col" style="background-color: #505050; color: #fff;{cell_border_and_align}">{col}</th>'
+            msg += f'<th scope="col" style="position: sticky; top: 0; background-color: #505050; color: #fff;{cell_border_and_align}">{col}</th>'
         msg += "</tr>"
         table_truncated = False
         for i, row in enumerate(result_rows):

test/tests/common_tests/log_query_results.robot

@@ -12,4 +12,10 @@ Test Teardown       Drop Tables Person And Foobar
 Calling The Keyword Causes No Crash
     Set Logging Query Results    enabled=False
     Set Logging Query Results    enabled=True    log_head=0
-    Set Logging Query Results    log_head=30
+    Set Logging Query Results    log_head=30
+
+Check Max Height For Long Tables
+    FOR    ${id}    IN RANGE    10   50
+        Execute Sql String    INSERT INTO person VALUES(${id}, 'Somebody that', 'I used to know');      
+    END
+    Query    SELECT * FROM person