fix(sqlite): Fix DROP TABLE (#1443)

* Improve test to illustrate correctness
* Add tests for:
  * Renaming tables
  * Renaming columns
  * Renaming columns without COLUMN keyword
  * Adding a column
  * Creating a trigger
  * Dropping a table if exists

internal/endtoend/testdata/ddl_alter_table_add_column/sqlite/query.sql

@@ -0,0 +1,2 @@
+/* name: Placeholder :many */
+SELECT * from venues;

internal/endtoend/testdata/ddl_alter_table_add_column/sqlite/schema.sql

@@ -0,0 +1,3 @@
+CREATE TABLE venues (name text);
+ALTER TABLE venues ADD location text;
+ALTER TABLE venues ADD COLUMN size integer;

internal/endtoend/testdata/ddl_alter_table_add_column/sqlite/sqlc.json

@@ -0,0 +1,12 @@
+{
+  "version": "1",
+  "packages": [
+    {
+      "path": "go",
+      "engine": "_lemon",
+      "name": "querytest",
+      "schema": "schema.sql",
+      "queries": "query.sql"
+    }
+  ]
+}

internal/endtoend/testdata/ddl_alter_table_drop_column/sqlite/query.sql

@@ -1,2 +1,2 @@
 -- name: Placeholder :exec
-SELECT 1;
+SELECT * from foo;

internal/endtoend/testdata/ddl_alter_table_rename/sqlite/query.sql

@@ -0,0 +1,2 @@
+/* name: Placeholder :many */
+SELECT * from arenas;

internal/endtoend/testdata/ddl_alter_table_rename/sqlite/schema.sql

@@ -0,0 +1,3 @@
+CREATE TABLE venues (name text);
+ALTER TABLE venues RENAME TO arenas;
+

internal/endtoend/testdata/ddl_alter_table_rename/sqlite/sqlc.json

@@ -0,0 +1,12 @@
+{
+  "version": "1",
+  "packages": [
+    {
+      "path": "go",
+      "engine": "_lemon",
+      "name": "querytest",
+      "schema": "schema.sql",
+      "queries": "query.sql"
+    }
+  ]
+}

internal/endtoend/testdata/ddl_alter_table_rename_column/sqlite/query.sql

@@ -0,0 +1,2 @@
+/* name: Placeholder :many */
+SELECT * from foo;

internal/endtoend/testdata/ddl_alter_table_rename_column/sqlite/schema.sql

@@ -0,0 +1,4 @@
+CREATE TABLE foo (bar text);
+ALTER TABLE foo RENAME COLUMN bar TO baz;
+
+ALTER TABLE foo RENAME baz TO boo;

internal/endtoend/testdata/ddl_alter_table_rename_column/sqlite/sqlc.json

@@ -0,0 +1,12 @@
+{
+  "version": "1",
+  "packages": [
+    {
+      "path": "go",
+      "engine": "_lemon",
+      "name": "querytest",
+      "schema": "schema.sql",
+      "queries": "query.sql"
+    }
+  ]
+}

internal/endtoend/testdata/ddl_create_table/sqlite/schema.sql

@@ -1 +1,3 @@
 CREATE TABLE venues (name text);
+
+CREATE TABLE IF NOT EXISTS arenas (name text PRIMARY KEY, location text, size int NOT NULL) WITHOUT ROWID;

internal/endtoend/testdata/ddl_create_trigger/sqlite/query.sql

@@ -0,0 +1,2 @@
+-- name: Placeholder :exec
+SELECT 1;