fix(sqlite) fix EXISTS operator (#2334)

Author: hakobera

internal/endtoend/testdata/select_exists/sqlite/go/db.go

@@ -0,0 +1,12 @@
+CREATE TABLE bar (id int not null primary key autoincrement);
+
+-- name: BarExists :one
+SELECT
+    EXISTS (
+        SELECT
+            1
+        FROM
+            bar
+        where
+            id = ?
+    );

internal/endtoend/testdata/select_exists/sqlite/go/models.go

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

internal/endtoend/testdata/select_exists/sqlite/go/query.sql.go

@@ -0,0 +1,13 @@
+CREATE TABLE bar (id integer not null primary key autoincrement);
+
+-- name: BarNotExists :one
+SELECT 
+    NOT EXISTS (
+        SELECT
+            1
+        FROM
+            bar
+        WHERE
+            id = ?
+    );
+

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

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