postgresql materialized views #123

plugins/dbgate-plugin-postgres/src/backend/sql/index.js

@@ -2,11 +2,14 @@ const columns = require('./columns');
 const tableModifications = require('./tableModifications');
 const tableList = require('./tableList');
 const viewModifications = require('./viewModifications');
+const matviewModifications = require('./matviewModifications');
 const primaryKeys = require('./primaryKeys');
 const foreignKeys = require('./foreignKeys');
 const views = require('./views');
+const matviews = require('./matviews');
 const routines = require('./routines');
 const routineModifications = require('./routineModifications');
+const matviewColumns = require('./matviewColumns');
 
 module.exports = {
   columns,
@@ -18,4 +21,7 @@ module.exports = {
   views,
   routines,
   routineModifications,
+  matviews,
+  matviewModifications,
+  matviewColumns,
 };

plugins/dbgate-plugin-postgres/src/backend/sql/matviewColumns.js

@@ -0,0 +1,17 @@
+module.exports = `
+SELECT pg_namespace.nspname AS "schema_name"
+    , pg_class.relname AS "pure_name"
+    , pg_attribute.attname AS "column_name"
+    , pg_catalog.format_type(pg_attribute.atttypid, pg_attribute.atttypmod) AS "data_type"
+FROM pg_catalog.pg_class
+    INNER JOIN pg_catalog.pg_namespace
+        ON pg_class.relnamespace = pg_namespace.oid
+    INNER JOIN pg_catalog.pg_attribute
+        ON pg_class.oid = pg_attribute.attrelid
+-- Keeps only materialized views, and non-db/catalog/index columns 
+WHERE pg_class.relkind = 'm'
+    AND pg_attribute.attnum >= 1
+    AND ('matviews:' || pg_namespace.nspname || '.' || pg_class.relname) =OBJECT_ID_CONDITION
+
+ORDER BY pg_attribute.attnum
+`;

plugins/dbgate-plugin-postgres/src/backend/sql/matviewModifications.js

@@ -0,0 +1,8 @@
+module.exports = `
+select 
+  matviewname as "pure_name",
+  schemaname as "schema_name",
+  md5(definition) as "hash_code"
+from
+  pg_catalog.pg_matviews WHERE schemaname NOT LIKE 'pg_%' 
+`;

plugins/dbgate-plugin-postgres/src/backend/sql/matviews.js

@@ -0,0 +1,10 @@
+module.exports = `
+select 
+  matviewname as "pure_name",
+  schemaname as "schema_name",
+  definition as "definition",
+  md5(definition) as "hash_code"
+from
+  pg_catalog.pg_matviews WHERE schemaname NOT LIKE 'pg_%' 
+  and ('matviews:' || schemaname || '.' ||  matviewname) =OBJECT_ID_CONDITION
+`;