Added examples for funcs codegen

examples/authors/sqlc.yaml

@@ -51,6 +51,7 @@ sql:
     go:
       package: authors
       out: ydb
+      emit_json_tags: true
 
 
 rules:

examples/authors/ydb/query.sql

@@ -13,6 +13,12 @@ WHERE name = $p0;
 SELECT * FROM authors
 WHERE bio IS NULL;
 
+-- name: Count :one
+SELECT COUNT(*) FROM authors;
+
+-- name: COALESCE :many
+SELECT id, name, COALESCE(bio, 'Null value!') FROM authors;
+
 -- name: CreateOrUpdateAuthor :execresult 
 UPSERT INTO authors (id, name, bio) VALUES ($p0, $p1, $p2);
 

examples/authors/ydb/schema.sql

@@ -1,6 +1,6 @@
 CREATE TABLE authors (
-				id Uint64,
-                name Utf8 NOT NULL,
-                bio Utf8,
-				PRIMARY KEY (id)
+    id   Uint64,
+    name Utf8 NOT NULL,
+    bio  Utf8,
+    PRIMARY KEY (id)
 );