fix: Partitioned indexes were not found fixes (#2078) (#2087)

* fix: Partitioned indexes were not found fixes (#2078)
pgjdbc · Mar 8, 2021 · e3ff2ac · e3ff2ac
1 parent 6cfa657
commit e3ff2ac
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Showing 2 changed files with 25 additions and 4 deletions.
diff --git a/pgjdbc/src/main/java/org/postgresql/jdbc/PgDatabaseMetaData.java b/pgjdbc/src/main/java/org/postgresql/jdbc/PgDatabaseMetaData.java
@@ -1300,6 +1300,7 @@ public ResultSet getTables(@Nullable String catalog, @Nullable String schemaPatt
              + " WHEN 'r' THEN 'TABLE' "
              + " WHEN 'p' THEN 'PARTITIONED TABLE' "
              + " WHEN 'i' THEN 'INDEX' "
+             + " WHEN 'P' then 'PARTITIONED INDEX' "
              + " WHEN 'S' THEN 'SEQUENCE' "
              + " WHEN 'v' THEN 'VIEW' "
              + " WHEN 'c' THEN 'TYPE' "
@@ -1370,6 +1371,10 @@ public ResultSet getTables(@Nullable String catalog, @Nullable String schemaPatt
         "c.relkind = 'i' AND n.nspname !~ '^pg_' AND n.nspname <> 'information_schema'");
     ht.put("NOSCHEMAS", "c.relkind = 'i' AND c.relname !~ '^pg_'");
     ht = new HashMap<String, String>();
+    tableTypeClauses.put("PARTITIONED INDEX", ht);
+    ht.put("SCHEMAS", "c.relkind = 'I' AND n.nspname !~ '^pg_' AND n.nspname <> 'information_schema'");
+    ht.put("NOSCHEMAS", "c.relkind = 'I' AND c.relname !~ '^pg_'");
+    ht = new HashMap<String, String>();
     tableTypeClauses.put("SEQUENCE", ht);
     ht.put("SCHEMAS", "c.relkind = 'S'");
     ht.put("NOSCHEMAS", "c.relkind = 'S'");
@@ -2233,7 +2238,19 @@ protected ResultSet getImportedExportedKeys(
     sql +=
         " WHERE pkn.oid = pkc.relnamespace AND pkc.oid = pka.attrelid AND pka.attnum = con.confkey[pos.n] AND con.confrelid = pkc.oid "
             + " AND fkn.oid = fkc.relnamespace AND fkc.oid = fka.attrelid AND fka.attnum = con.conkey[pos.n] AND con.conrelid = fkc.oid "
-            + " AND con.contype = 'f' AND pkic.relkind = 'i' ";
+            + " AND con.contype = 'f' ";
+    /*
+    In version 11 we added Partitioned indexes indicated by relkind = 'I'
+    I could have done this using lower(relkind) = 'i' but chose to be explicit
+    for clarity
+    */
+
+    if (!connection.haveMinimumServerVersion(ServerVersion.v11)) {
+      sql += "AND pkic.relkind = 'i' ";
+    } else {
+      sql += "AND (pkic.relkind = 'i' OR pkic.relkind = 'I')";
+    }
+
     if (!connection.haveMinimumServerVersion(ServerVersion.v9_0)) {
       sql += " AND con.oid = dep.objid AND pkic.oid = dep.refobjid AND dep.classid = 'pg_constraint'::regclass::oid AND dep.refclassid = 'pg_class'::regclass::oid ";
     } else {

diff --git a/pgjdbc/src/test/java/org/postgresql/test/jdbc2/DatabaseMetaDataTest.java b/pgjdbc/src/test/java/org/postgresql/test/jdbc2/DatabaseMetaDataTest.java
@@ -810,7 +810,7 @@ public void testPartialIndexInfo() throws SQLException {
 
   @Test
   public void testTableTypes() throws SQLException {
-    final List<String> expectedTableTypes = new ArrayList<String>(Arrays.asList("FOREIGN TABLE", "INDEX",
+    final List<String> expectedTableTypes = new ArrayList<String>(Arrays.asList("FOREIGN TABLE", "INDEX", "PARTITIONED INDEX",
         "MATERIALIZED VIEW", "PARTITIONED TABLE", "SEQUENCE", "SYSTEM INDEX", "SYSTEM TABLE", "SYSTEM TOAST INDEX",
         "SYSTEM TOAST TABLE", "SYSTEM VIEW", "TABLE", "TEMPORARY INDEX", "TEMPORARY SEQUENCE", "TEMPORARY TABLE",
         "TEMPORARY VIEW", "TYPE", "VIEW"));
@@ -829,7 +829,7 @@ public void testTableTypes() throws SQLException {
     rs.close();
     Collections.sort(expectedTableTypes);
     Collections.sort(foundTableTypes);
-    Assert.assertEquals("The table types received from DatabaseMetaData should match the 17 expected types",
+    Assert.assertEquals("The table types received from DatabaseMetaData should match the 18 expected types",
         true, foundTableTypes.equals(expectedTableTypes));
   }
 
@@ -1336,11 +1336,15 @@ public void testPartitionedTables() throws SQLException {
       try {
         stmt = con.createStatement();
         stmt.execute(
-            "CREATE TABLE measurement (logdate date not null,peaktemp int,unitsales int ) PARTITION BY RANGE (logdate);");
+            "CREATE TABLE measurement (logdate date not null primary key,peaktemp int,unitsales int ) PARTITION BY RANGE (logdate);");
         DatabaseMetaData dbmd = con.getMetaData();
         ResultSet rs = dbmd.getTables("", "", "measurement", new String[]{"PARTITIONED TABLE"});
         assertTrue(rs.next());
         assertEquals("measurement", rs.getString("table_name"));
+        rs.close();
+        rs = dbmd.getPrimaryKeys("", "", "measurement");
+        assertTrue(rs.next());
+        assertEquals("measurement_pkey", rs.getString(6));
 
       } finally {
         if (stmt != null) {