sql: Add pg_description table to pg_catalog

The `pg_language` table registers languages in which users can write functions or stored procedures. Release note (sql change): Added pg_language table to the pg_catalog.
nvanbenschoten · Mar 2, 2018 · 837c464 · 837c464
1 parent 9814bb3
commit 837c464
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Showing 4 changed files with 29 additions and 2 deletions.
diff --git a/pkg/sql/logictest/testdata/logic_test/explain b/pkg/sql/logictest/testdata/logic_test/explain
@@ -167,7 +167,7 @@ sort                   ·      ·
  └── render            ·      ·
       └── filter       ·      ·
            └── values  ·      ·
-·                      size   5 columns, 80 rows
+·                      size   5 columns, 81 rows
 
 query TTT
 EXPLAIN SHOW DATABASE
@@ -230,7 +230,7 @@ sort                                       ·            ·
                      ├── render            ·            ·
                      │    └── filter       ·            ·
                      │         └── values  ·            ·
-                     │                     size         17 columns, 729 rows
+                     │                     size         17 columns, 738 rows
                      └── render            ·            ·
                           └── filter       ·            ·
                                └── values  ·            ·

diff --git a/pkg/sql/logictest/testdata/logic_test/information_schema b/pkg/sql/logictest/testdata/logic_test/information_schema
@@ -266,6 +266,7 @@ pg_catalog          pg_foreign_table
 pg_catalog          pg_index
 pg_catalog          pg_indexes
 pg_catalog          pg_inherits
+pg_catalog          pg_language
 pg_catalog          pg_namespace
 pg_catalog          pg_operator
 pg_catalog          pg_proc
@@ -380,6 +381,7 @@ pg_foreign_table
 pg_index
 pg_indexes
 pg_inherits
+pg_language
 pg_namespace
 pg_operator
 pg_proc
@@ -501,6 +503,7 @@ system         pg_catalog          pg_foreign_table                   SYSTEM VIE
 system         pg_catalog          pg_index                           SYSTEM VIEW  1
 system         pg_catalog          pg_indexes                         SYSTEM VIEW  1
 system         pg_catalog          pg_inherits                        SYSTEM VIEW  1
+system         pg_catalog          pg_language                        SYSTEM VIEW  1
 system         pg_catalog          pg_namespace                       SYSTEM VIEW  1
 system         pg_catalog          pg_operator                        SYSTEM VIEW  1
 system         pg_catalog          pg_proc                            SYSTEM VIEW  1

diff --git a/pkg/sql/logictest/testdata/logic_test/pg_catalog b/pkg/sql/logictest/testdata/logic_test/pg_catalog
@@ -32,6 +32,7 @@ pg_foreign_table
 pg_index
 pg_indexes
 pg_inherits
+pg_language
 pg_namespace
 pg_operator
 pg_proc
@@ -91,6 +92,7 @@ pg_foreign_table
 pg_index
 pg_indexes
 pg_inherits
+pg_language
 pg_namespace
 pg_operator
 pg_proc

diff --git a/pkg/sql/pg_catalog.go b/pkg/sql/pg_catalog.go
@@ -75,6 +75,7 @@ var pgCatalog = virtualSchema{
 		pgCatalogIndexTable,
 		pgCatalogIndexesTable,
 		pgCatalogInheritsTable,
+		pgCatalogLanguageTable,
 		pgCatalogNamespaceTable,
 		pgCatalogOperatorTable,
 		pgCatalogProcTable,
@@ -1073,6 +1074,27 @@ CREATE TABLE pg_catalog.pg_inherits (
 	},
 }
 
+// See: https://www.postgresql.org/docs/9.6/static/catalog-pg-language.html.
+var pgCatalogLanguageTable = virtualSchemaTable{
+	schema: `
+CREATE TABLE pg_catalog.pg_language (
+	oid OID,
+	lanname NAME,
+	lanowner OID,
+	lanispl BOOL,
+	lanpltrusted BOOL,
+	lanplcallfoid OID,
+	laninline OID,
+	lanvalidator OID,
+	lanacl STRING[]
+);
+`,
+	populate: func(_ context.Context, p *planner, _ *DatabaseDescriptor, addRow func(...tree.Datum) error) error {
+		// Languages to write functions and stored procedures are not supported.
+		return nil
+	},
+}
+
 // See: https://www.postgresql.org/docs/9.6/static/catalog-pg-namespace.html.
 var pgCatalogNamespaceTable = virtualSchemaTable{
 	schema: `