update

Jeanhwea · Jun 29, 2024 · 6369386 · 6369386
1 parent ddcde31
commit 6369386
Showing 1 changed file with 66 additions and 0 deletions.
diff --git a/assets/join3-prepare-example.org b/assets/join3-prepare-example.org
@@ -20,7 +20,31 @@
   #+END_SRC
 - preparation
   #+BEGIN_EXAMPLE
+    "join_preparation": {
+      "select#": 1,
+      "steps": [
+        {
+          "expanded_query": "/* select#1 */ select `e`.`first_name` AS
+          `first_name`,`e`.`last_name` AS `last_name`,`a`.`from_date` AS `from_date`
+          from ((`dept_manager` `a` join `departments` `d` on((`a`.`dept_no` =
+          `d`.`dept_no`))) join `employees` `e` on((`a`.`emp_no` = `e`.`emp_no`)))
+          where (`d`.`dept_no` = 'd001')"
+        },
+        {
+          "transformations_to_nested_joins": {
+            "transformations": [
+              "JOIN_condition_to_WHERE",
+              "parenthesis_removal"
+            ],
+            "expanded_query": "/* select#1 */ select `e`.`first_name` AS
+            `first_name`,`e`.`last_name` AS `last_name`,`a`.`from_date` AS
+            `from_date` from `dept_manager` `a` join `departments` `d` join
+            `employees` `e` where ((`d`.`dept_no` = 'd001') and (`a`.`emp_no` =
+            `e`.`emp_no`) and (`a`.`dept_no` = `d`.`dept_no`))"
 
+        }
+      ]
+    }
   #+END_EXAMPLE
 
 * join3_02
@@ -33,6 +57,33 @@
     where
       a.dept_no = d.dept_no and a.emp_no = e.emp_no and d.dept_no = 'd001';
   #+END_SRC
+- preparation
+  #+BEGIN_EXAMPLE
+    "join_preparation": {
+      "select#": 1,
+      "steps": [
+        {
+          "expanded_query": "/* select#1 */ select `e`.`first_name` AS
+          `first_name`,`e`.`last_name` AS `last_name`,`a`.`from_date` AS `from_date`
+          from ((`dept_manager` `a` join `departments` `d`) join `employees` `e`)
+          where ((`a`.`dept_no` = `d`.`dept_no`) and (`a`.`emp_no` = `e`.`emp_no`)
+          and (`d`.`dept_no` = 'd001'))"
+        },
+        {
+          "transformations_to_nested_joins": {
+            "transformations": [
+              "parenthesis_removal"
+            ],
+            "expanded_query": "/* select#1 */ select `e`.`first_name` AS
+            `first_name`,`e`.`last_name` AS `last_name`,`a`.`from_date` AS
+            `from_date` from `dept_manager` `a` join `departments` `d` join
+            `employees` `e` where ((`a`.`dept_no` = `d`.`dept_no`) and (`a`.`emp_no`
+            = `e`.`emp_no`) and (`d`.`dept_no` = 'd001'))"
+          }
+        }
+      ]
+    }
+  #+END_EXAMPLE
 
 * join3_03
 - [[file:join3_03_opt.sql][sql]] | [[file:join3_03_opt.sql.json][opt_trace]]
@@ -44,3 +95,18 @@
     where
       a.dept_no = d.dept_no and a.emp_no = e.emp_no and d.dept_no = 'd001';
   #+END_SRC
+- preparation
+  #+BEGIN_EXAMPLE
+    "join_preparation": {
+      "select#": 1,
+      "steps": [
+        {
+          "expanded_query": "/* select#1 */ select `e`.`first_name` AS
+          `first_name`,`e`.`last_name` AS `last_name`,`a`.`from_date` AS `from_date`
+          from `dept_manager` `a` join `departments` `d` join `employees` `e` where
+          ((`a`.`dept_no` = `d`.`dept_no`) and (`a`.`emp_no` = `e`.`emp_no`) and
+          (`d`.`dept_no` = 'd001'))"
+        }
+      ]
+    }
+  #+END_EXAMPLE