feature: Add SQL for migration

src/main/resources/sql/migration/createFunctionShema.sql

@@ -0,0 +1,13 @@
+CREATE SCHEMA IF NOT EXISTS migration;
+
+CREATE TABLE IF NOT EXISTS migration.functions
+(
+    filename    text PRIMARY KEY,
+    definition  text                    NOT NULL,
+    executed_at timestamp DEFAULT now() NOT NULL,
+    up          text                    NOT NULL,
+    down        text                    NOT NULL,
+    version     int                     NOT NULL
+);
+
+CREATE SEQUENCE IF NOT EXISTS migration.version_seq;

src/main/resources/sql/migration/createHistoryShema.sql

@@ -0,0 +1,12 @@
+CREATE SCHEMA IF NOT EXISTS migration;
+
+CREATE TABLE IF NOT EXISTS migration.history
+(
+    filename    text PRIMARY KEY,
+    executed_at timestamp DEFAULT now() NOT NULL,
+    up          text                    NOT NULL,
+    down        text                    NOT NULL,
+    version     int                     NOT NULL
+);
+
+CREATE SEQUENCE IF NOT EXISTS migration.version_seq;

src/main/resources/sql/migration/deleteFunction.sql

@@ -0,0 +1,3 @@
+DELETE
+FROM migration.functions
+WHERE filename = :filename;

src/main/resources/sql/migration/deleteHistory.sql

@@ -0,0 +1,3 @@
+DELETE
+FROM migration.history
+WHERE filename = :filename;

src/main/resources/sql/migration/findAllFunction.sql

@@ -0,0 +1,2 @@
+SELECT json_object_agg(filename, f)
+FROM migration.functions f;

src/main/resources/sql/migration/findAllHistory.sql

@@ -0,0 +1,2 @@
+SELECT json_object_agg(filename, f)
+FROM migration.functions f;

src/main/resources/sql/migration/getNextVersion.sql

@@ -0,0 +1 @@
+SELECT nextval('migration.version_seq');

src/main/resources/sql/migration/insertFunction.sql

@@ -0,0 +1,2 @@
+INSERT INTO migration.functions (filename, definition, up, down, version)
+VALUES (:filename, :definition, :up, :down, :version);

src/main/resources/sql/migration/insertHistory.sql

@@ -0,0 +1,2 @@
+INSERT INTO migration.history (filename, up, down, version)
+VALUES (:filename, :up, :down, :version);