backend bundle refactor

packages/engines/mssql/sql/columns.js

@@ -0,0 +1,15 @@
+module.exports = `
+select c.name as columnName, t.name as dataType, c.object_id as objectId, c.is_identity as isIdentity,
+	c.max_length as maxLength, c.precision, c.scale, c.is_nullable as isNullable,
+	d.definition as defaultValue, d.name as defaultConstraint,
+	m.definition as computedExpression, m.is_persisted as isPersisted, c.column_id as columnId, 
+	-- TODO only if version >= 2008
+	c.is_sparse as isSparse
+from sys.columns c
+inner join sys.types t on c.system_type_id = t.system_type_id and c.user_type_id = t.user_type_id
+inner join sys.objects o on c.object_id = o.object_id
+left join sys.default_constraints d on c.default_object_id = d.object_id
+left join sys.computed_columns m on m.object_id = c.object_id and m.column_id = c.column_id
+where o.type = 'U' and o.object_id =[OBJECT_ID_CONDITION]
+order by c.column_id
+`;

packages/engines/mssql/sql/foreignKeys.js

@@ -0,0 +1,40 @@
+module.exports = `
+SELECT
+    schemaName = FK.TABLE_SCHEMA,
+    pureName = FK.TABLE_NAME,
+    columnName = CU.COLUMN_NAME,
+
+    refSchemaName = ISNULL(IXS.name, PK.TABLE_SCHEMA),
+    refTableName = ISNULL(IXT.name, PK.TABLE_NAME),
+    refColumnName = IXCC.name,
+
+    constraintName = C.CONSTRAINT_NAME,
+    updateAction = rc.UPDATE_RULE,
+    deleteAction = rc.DELETE_RULE,
+
+    objectId = o.object_id 
+
+FROM INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS C
+INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS FK ON C.CONSTRAINT_NAME = FK.CONSTRAINT_NAME
+
+LEFT JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS PK ON C.UNIQUE_CONSTRAINT_NAME = PK.CONSTRAINT_NAME
+LEFT JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE CU ON C.CONSTRAINT_NAME = CU.CONSTRAINT_NAME
+--LEFT JOIN (
+--SELECT i1.TABLE_NAME, i2.COLUMN_NAME
+--FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS i1
+--INNER JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE i2 ON i1.CONSTRAINT_NAME = i2.CONSTRAINT_NAME
+--WHERE i1.CONSTRAINT_TYPE = 'PRIMARY KEY'
+--) PT ON PT.TABLE_NAME = PK.TABLE_NAME
+INNER JOIN INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS rc ON FK.CONSTRAINT_NAME = rc.CONSTRAINT_NAME
+
+LEFT JOIN sys.indexes IX ON IX.name = C.UNIQUE_CONSTRAINT_NAME
+LEFT JOIN sys.objects IXT ON IXT.object_id = IX.object_id
+LEFT JOIN sys.index_columns IXC ON IX.index_id = IXC.index_id and IX.object_id = IXC.object_id
+LEFT JOIN sys.columns IXCC ON IXCC.column_id = IXC.column_id AND IXCC.object_id = IXC.object_id
+LEFT JOIN sys.schemas IXS ON IXT.schema_id = IXS.schema_id
+
+inner join sys.objects o on FK.TABLE_NAME = o.name
+inner join sys.schemas s on o.schema_id = s.schema_id and FK.TABLE_SCHEMA = s.name
+
+where o.object_id =[OBJECT_ID_CONDITION]
+`;

packages/engines/mssql/sql/index.js

@@ -0,0 +1,11 @@
+const columns = require('./columns');
+const foreignKeys = require('./foreignKeys');
+const primaryKeys = require('./primaryKeys');
+const tables = require('./tables');
+
+module.exports = {
+  columns,
+  tables,
+  foreignKeys,
+  primaryKeys,
+};

packages/engines/mssql/sql/primaryKeys.js

@@ -0,0 +1,14 @@
+module.exports = `
+select o.object_id, pureName = t.Table_Name, schemaName = t.Table_Schema, columnName = c.Column_Name, constraintName=t.constraint_name from 
+    INFORMATION_SCHEMA.TABLE_CONSTRAINTS t,
+    sys.objects o,
+    sys.schemas s,
+    INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE c
+where
+    c.Constraint_Name = t.Constraint_Name
+    and t.table_name = o.name 
+    and o.schema_id = s.schema_id and t.Table_Schema = s.name
+    and c.Table_Name = t.Table_Name
+    and Constraint_Type = 'PRIMARY KEY'
+	and o.object_id =[OBJECT_ID_CONDITION]
+`;

packages/engines/mssql/sql/tables.js

@@ -0,0 +1,8 @@
+module.exports = `
+select
+	o.name as pureName, s.name as schemaName, o.object_id as objectId,
+	o.create_date, o.modify_date 
+from sys.tables o
+inner join sys.schemas s on o.schema_id = s.schema_id
+where o.object_id =[OBJECT_ID_CONDITION]
+`;