forked from pgjdbc/pgjdbc
/
DatabaseMetaDataTest.java
1681 lines (1454 loc) · 63.1 KB
/
DatabaseMetaDataTest.java
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/*
* Copyright (c) 2004, PostgreSQL Global Development Group
* See the LICENSE file in the project root for more information.
*/
package org.postgresql.test.jdbc2;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import org.postgresql.PGProperty;
import org.postgresql.core.ServerVersion;
import org.postgresql.test.TestUtil;
import org.postgresql.test.jdbc2.BaseTest4.BinaryMode;
import org.junit.After;
import org.junit.Assert;
import org.junit.Assume;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Types;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Properties;
import java.util.Set;
/*
* TestCase to test the internal functionality of org.postgresql.jdbc2.DatabaseMetaData
*
*/
@RunWith(Parameterized.class)
public class DatabaseMetaDataTest {
private Connection con;
private final BinaryMode binaryMode;
public DatabaseMetaDataTest(BinaryMode binaryMode) {
this.binaryMode = binaryMode;
}
@Parameterized.Parameters(name = "binary = {0}")
public static Iterable<Object[]> data() {
Collection<Object[]> ids = new ArrayList<Object[]>();
for (BinaryMode binaryMode : BinaryMode.values()) {
ids.add(new Object[]{binaryMode});
}
return ids;
}
@Before
public void setUp() throws Exception {
if (binaryMode == BinaryMode.FORCE) {
final Properties props = new Properties();
PGProperty.PREPARE_THRESHOLD.set(props, -1);
con = TestUtil.openDB(props);
} else {
con = TestUtil.openDB();
}
TestUtil.createTable(con, "metadatatest",
"id int4, name text, updated timestamptz, colour text, quest text");
TestUtil.createTable(con, "precision_test", "implicit_precision numeric");
TestUtil.dropSequence(con, "sercoltest_b_seq");
TestUtil.dropSequence(con, "sercoltest_c_seq");
TestUtil.createTable(con, "sercoltest", "a int, b serial, c bigserial");
TestUtil.createTable(con, "\"a\\\"", "a int4");
TestUtil.createTable(con, "\"a'\"", "a int4");
TestUtil.createTable(con, "arraytable", "a numeric(5,2)[], b varchar(100)[]");
TestUtil.createTable(con, "intarraytable", "a int4[], b int4[][]");
TestUtil.createView(con, "viewtest", "SELECT id, quest FROM metadatatest");
TestUtil.dropType(con, "custom");
TestUtil.dropType(con, "_custom");
TestUtil.createCompositeType(con, "custom", "i int", false);
TestUtil.createCompositeType(con, "_custom", "f float", false);
// create a table and multiple comments on it
TestUtil.createTable(con, "duplicate", "x text");
TestUtil.execute("comment on table duplicate is 'duplicate table'", con);
TestUtil.execute("create or replace function bar() returns integer language sql as $$ select 1 $$", con);
TestUtil.execute("comment on function bar() is 'bar function'", con);
try (Connection conPriv = TestUtil.openPrivilegedDB()) {
TestUtil.execute("update pg_description set objoid = 'duplicate'::regclass where objoid = 'bar'::regproc", conPriv);
}
// 8.2 does not support arrays of composite types
TestUtil.createTable(con, "customtable", "c1 custom, c2 _custom"
+ (TestUtil.haveMinimumServerVersion(con, ServerVersion.v8_3) ? ", c3 custom[], c4 _custom[]" : ""));
Statement stmt = con.createStatement();
// we add the following comments to ensure the joins to the comments
// are done correctly. This ensures we correctly test that case.
stmt.execute("comment on table metadatatest is 'this is a table comment'");
stmt.execute("comment on column metadatatest.id is 'this is a column comment'");
stmt.execute(
"CREATE OR REPLACE FUNCTION f1(int, varchar) RETURNS int AS 'SELECT 1;' LANGUAGE SQL");
stmt.execute(
"CREATE OR REPLACE FUNCTION f2(a int, b varchar) RETURNS int AS 'SELECT 1;' LANGUAGE SQL");
stmt.execute(
"CREATE OR REPLACE FUNCTION f3(IN a int, INOUT b varchar, OUT c timestamptz) AS $f$ BEGIN b := 'a'; c := now(); return; END; $f$ LANGUAGE plpgsql");
stmt.execute(
"CREATE OR REPLACE FUNCTION f4(int) RETURNS metadatatest AS 'SELECT 1, ''a''::text, now(), ''c''::text, ''q''::text' LANGUAGE SQL");
if (TestUtil.haveMinimumServerVersion(con, ServerVersion.v8_4)) {
// RETURNS TABLE requires PostgreSQL 8.4+
stmt.execute(
"CREATE OR REPLACE FUNCTION f5() RETURNS TABLE (i int) LANGUAGE sql AS 'SELECT 1'");
}
// create a custom `&` operator, which caused failure with `&` usage in getIndexInfo()
stmt.execute(
"CREATE OR REPLACE FUNCTION f6(numeric, integer) returns integer as 'BEGIN return $1::integer & $2;END;' language plpgsql immutable;");
stmt.execute("DROP OPERATOR IF EXISTS & (numeric, integer)");
stmt.execute("CREATE OPERATOR & (LEFTARG = numeric, RIGHTARG = integer, PROCEDURE = f6)");
TestUtil.createDomain(con, "nndom", "int not null");
TestUtil.createDomain(con, "varbit2", "varbit(3)");
TestUtil.createDomain(con, "float83", "numeric(8,3)");
TestUtil.createTable(con, "domaintable", "id nndom, v varbit2, f float83");
stmt.close();
if ( TestUtil.haveMinimumServerVersion(con, ServerVersion.v12) ) {
TestUtil.createTable(con, "employee", "id int GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY, hours_per_week decimal(3,2), rate_per_hour decimal(3,2), gross_pay decimal GENERATED ALWAYS AS (hours_per_week * rate_per_hour) STORED");
}
}
@After
public void tearDown() throws Exception {
// Drop function first because it depends on the
// metadatatest table's type
Statement stmt = con.createStatement();
stmt.execute("DROP FUNCTION f4(int)");
TestUtil.execute("drop function bar()", con);
TestUtil.dropTable(con, "duplicate");
TestUtil.dropView(con, "viewtest");
TestUtil.dropTable(con, "metadatatest");
TestUtil.dropTable(con, "sercoltest");
TestUtil.dropSequence(con, "sercoltest_b_seq");
TestUtil.dropSequence(con, "sercoltest_c_seq");
TestUtil.dropTable(con, "precision_test");
TestUtil.dropTable(con, "\"a\\\"");
TestUtil.dropTable(con, "\"a'\"");
TestUtil.dropTable(con, "arraytable");
TestUtil.dropTable(con, "intarraytable");
TestUtil.dropTable(con, "customtable");
TestUtil.dropType(con, "custom");
TestUtil.dropType(con, "_custom");
stmt.execute("DROP FUNCTION f1(int, varchar)");
stmt.execute("DROP FUNCTION f2(int, varchar)");
stmt.execute("DROP FUNCTION f3(int, varchar)");
stmt.execute("DROP OPERATOR IF EXISTS & (numeric, integer)");
stmt.execute("DROP FUNCTION f6(numeric, integer)");
TestUtil.dropTable(con, "domaintable");
TestUtil.dropDomain(con, "nndom");
TestUtil.dropDomain(con, "varbit2");
TestUtil.dropDomain(con, "float83");
if ( TestUtil.haveMinimumServerVersion(con, ServerVersion.v12) ) {
TestUtil.dropTable(con, "employee");
}
TestUtil.closeDB(con);
}
@Test
public void testArrayTypeInfo() throws SQLException {
DatabaseMetaData dbmd = con.getMetaData();
ResultSet rs = dbmd.getColumns(null, null, "intarraytable", "a");
assertTrue(rs.next());
assertEquals("_int4", rs.getString("TYPE_NAME"));
con.createArrayOf("integer", new Integer[] {});
TestUtil.closeQuietly(rs);
rs = dbmd.getColumns(null, null, "intarraytable", "a");
assertTrue(rs.next());
assertEquals("_int4", rs.getString("TYPE_NAME"));
TestUtil.closeQuietly(rs);
}
@Test
public void testArrayInt4DoubleDim() throws SQLException {
DatabaseMetaData dbmd = con.getMetaData();
ResultSet rs = dbmd.getColumns(null, null, "intarraytable", "b");
assertTrue(rs.next());
assertEquals("_int4", rs.getString("TYPE_NAME")); // even int4[][] is represented as _int4
con.createArrayOf("int4", new int[][]{{1, 2}, {3, 4}});
rs = dbmd.getColumns(null, null, "intarraytable", "b");
assertTrue(rs.next());
assertEquals("_int4", rs.getString("TYPE_NAME")); // even int4[][] is represented as _int4
}
@Test
public void testCustomArrayTypeInfo() throws SQLException {
DatabaseMetaData dbmd = con.getMetaData();
ResultSet res = dbmd.getColumns(null, null, "customtable", null);
assertTrue(res.next());
assertEquals("custom", res.getString("TYPE_NAME"));
assertTrue(res.next());
assertEquals("_custom", res.getString("TYPE_NAME"));
if (TestUtil.haveMinimumServerVersion(con, ServerVersion.v8_3)) {
assertTrue(res.next());
assertEquals("__custom", res.getString("TYPE_NAME"));
assertTrue(res.next());
assertEquals("___custom", res.getString("TYPE_NAME"));
}
if (TestUtil.haveMinimumServerVersion(con, ServerVersion.v8_3)) {
con.createArrayOf("custom", new Object[]{});
res = dbmd.getColumns(null, null, "customtable", null);
assertTrue(res.next());
assertEquals("custom", res.getString("TYPE_NAME"));
assertTrue(res.next());
assertEquals("_custom", res.getString("TYPE_NAME"));
assertTrue(res.next());
assertEquals("__custom", res.getString("TYPE_NAME"));
assertTrue(res.next());
assertEquals("___custom", res.getString("TYPE_NAME"));
}
}
@Test
public void testTables() throws Exception {
DatabaseMetaData dbmd = con.getMetaData();
assertNotNull(dbmd);
ResultSet rs = dbmd.getTables(null, null, "metadatates%", new String[]{"TABLE"});
assertTrue(rs.next());
String tableName = rs.getString("TABLE_NAME");
assertEquals("metadatatest", tableName);
String tableType = rs.getString("TABLE_TYPE");
assertEquals("TABLE", tableType);
assertEquals(rs.findColumn("REMARKS"), 5);
assertEquals(rs.findColumn("TYPE_CAT"), 6);
assertEquals(rs.findColumn("TYPE_SCHEM"),7);
assertEquals(rs.findColumn("TYPE_NAME"), 8);
assertEquals(rs.findColumn("SELF_REFERENCING_COL_NAME"), 9);
assertEquals(rs.findColumn("REF_GENERATION"), 10);
// There should only be one row returned
assertTrue("getTables() returned too many rows", rs.next() == false);
rs.close();
rs = dbmd.getColumns("", "", "meta%", "%");
assertTrue(rs.next());
assertEquals("metadatatest", rs.getString("TABLE_NAME"));
assertEquals("id", rs.getString("COLUMN_NAME"));
assertEquals(java.sql.Types.INTEGER, rs.getInt("DATA_TYPE"));
assertTrue(rs.next());
assertEquals("metadatatest", rs.getString("TABLE_NAME"));
assertEquals("name", rs.getString("COLUMN_NAME"));
assertEquals(java.sql.Types.VARCHAR, rs.getInt("DATA_TYPE"));
assertTrue(rs.next());
assertEquals("metadatatest", rs.getString("TABLE_NAME"));
assertEquals("updated", rs.getString("COLUMN_NAME"));
assertEquals(java.sql.Types.TIMESTAMP, rs.getInt("DATA_TYPE"));
}
@Test
public void testCrossReference() throws Exception {
Connection con1 = TestUtil.openDB();
TestUtil.createTable(con1, "vv", "a int not null, b int not null, constraint vv_pkey primary key ( a, b )");
TestUtil.createTable(con1, "ww",
"m int not null, n int not null, constraint m_pkey primary key ( m, n ), constraint ww_m_fkey foreign key ( m, n ) references vv ( a, b )");
DatabaseMetaData dbmd = con.getMetaData();
assertNotNull(dbmd);
ResultSet rs = dbmd.getCrossReference(null, "", "vv", null, "", "ww");
String[] expectedPkColumnNames = new String[]{"a", "b"};
String[] expectedFkColumnNames = new String[]{"m", "n"};
int numRows = 0;
for (int j = 1; rs.next(); j++) {
String pkTableName = rs.getString("PKTABLE_NAME");
assertEquals("vv", pkTableName);
String pkColumnName = rs.getString("PKCOLUMN_NAME");
assertEquals(expectedPkColumnNames[j - 1], pkColumnName);
String fkTableName = rs.getString("FKTABLE_NAME");
assertEquals("ww", fkTableName);
String fkColumnName = rs.getString("FKCOLUMN_NAME");
assertEquals(expectedFkColumnNames[j - 1], fkColumnName);
String fkName = rs.getString("FK_NAME");
assertEquals("ww_m_fkey", fkName);
String pkName = rs.getString("PK_NAME");
assertEquals("vv_pkey", pkName);
int keySeq = rs.getInt("KEY_SEQ");
assertEquals(j, keySeq);
numRows += 1;
}
assertEquals(2, numRows);
TestUtil.dropTable(con1, "vv");
TestUtil.dropTable(con1, "ww");
TestUtil.closeDB(con1);
}
@Test
public void testForeignKeyActions() throws Exception {
Connection conn = TestUtil.openDB();
TestUtil.createTable(conn, "pkt", "id int primary key");
TestUtil.createTable(conn, "fkt1",
"id int references pkt on update restrict on delete cascade");
TestUtil.createTable(conn, "fkt2",
"id int references pkt on update set null on delete set default");
DatabaseMetaData dbmd = conn.getMetaData();
ResultSet rs = dbmd.getImportedKeys(null, "", "fkt1");
assertTrue(rs.next());
assertEquals(DatabaseMetaData.importedKeyRestrict, rs.getInt("UPDATE_RULE"));
assertEquals(DatabaseMetaData.importedKeyCascade, rs.getInt("DELETE_RULE"));
rs.close();
rs = dbmd.getImportedKeys(null, "", "fkt2");
assertTrue(rs.next());
assertEquals(DatabaseMetaData.importedKeySetNull, rs.getInt("UPDATE_RULE"));
assertEquals(DatabaseMetaData.importedKeySetDefault, rs.getInt("DELETE_RULE"));
rs.close();
TestUtil.dropTable(conn, "fkt2");
TestUtil.dropTable(conn, "fkt1");
TestUtil.dropTable(conn, "pkt");
TestUtil.closeDB(conn);
}
@Test
public void testForeignKeysToUniqueIndexes() throws Exception {
Connection con1 = TestUtil.openDB();
TestUtil.createTable(con1, "pkt",
"a int not null, b int not null, CONSTRAINT pkt_pk_a PRIMARY KEY (a), CONSTRAINT pkt_un_b UNIQUE (b)");
TestUtil.createTable(con1, "fkt",
"c int, d int, CONSTRAINT fkt_fk_c FOREIGN KEY (c) REFERENCES pkt(b)");
DatabaseMetaData dbmd = con.getMetaData();
ResultSet rs = dbmd.getImportedKeys("", "", "fkt");
int j = 0;
for (; rs.next(); j++) {
assertEquals("pkt", rs.getString("PKTABLE_NAME"));
assertEquals("fkt", rs.getString("FKTABLE_NAME"));
assertEquals("pkt_un_b", rs.getString("PK_NAME"));
assertEquals("b", rs.getString("PKCOLUMN_NAME"));
}
assertEquals(1, j);
TestUtil.dropTable(con1, "fkt");
TestUtil.dropTable(con1, "pkt");
con1.close();
}
@Test
public void testMultiColumnForeignKeys() throws Exception {
Connection con1 = TestUtil.openDB();
TestUtil.createTable(con1, "pkt",
"a int not null, b int not null, CONSTRAINT pkt_pk PRIMARY KEY (a,b)");
TestUtil.createTable(con1, "fkt",
"c int, d int, CONSTRAINT fkt_fk_pkt FOREIGN KEY (c,d) REFERENCES pkt(b,a)");
DatabaseMetaData dbmd = con.getMetaData();
ResultSet rs = dbmd.getImportedKeys("", "", "fkt");
int j = 0;
for (; rs.next(); j++) {
assertEquals("pkt", rs.getString("PKTABLE_NAME"));
assertEquals("fkt", rs.getString("FKTABLE_NAME"));
assertEquals(j + 1, rs.getInt("KEY_SEQ"));
if (j == 0) {
assertEquals("b", rs.getString("PKCOLUMN_NAME"));
assertEquals("c", rs.getString("FKCOLUMN_NAME"));
} else {
assertEquals("a", rs.getString("PKCOLUMN_NAME"));
assertEquals("d", rs.getString("FKCOLUMN_NAME"));
}
}
assertEquals(2, j);
TestUtil.dropTable(con1, "fkt");
TestUtil.dropTable(con1, "pkt");
con1.close();
}
@Test
public void testSameTableForeignKeys() throws Exception {
Connection con1 = TestUtil.openDB();
TestUtil.createTable(con1, "person",
"FIRST_NAME character varying(100) NOT NULL," + "LAST_NAME character varying(100) NOT NULL,"
+ "FIRST_NAME_PARENT_1 character varying(100),"
+ "LAST_NAME_PARENT_1 character varying(100),"
+ "FIRST_NAME_PARENT_2 character varying(100),"
+ "LAST_NAME_PARENT_2 character varying(100),"
+ "CONSTRAINT PERSON_pkey PRIMARY KEY (FIRST_NAME , LAST_NAME ),"
+ "CONSTRAINT PARENT_1_fkey FOREIGN KEY (FIRST_NAME_PARENT_1, LAST_NAME_PARENT_1)"
+ "REFERENCES PERSON (FIRST_NAME, LAST_NAME) MATCH SIMPLE "
+ "ON UPDATE CASCADE ON DELETE CASCADE,"
+ "CONSTRAINT PARENT_2_fkey FOREIGN KEY (FIRST_NAME_PARENT_2, LAST_NAME_PARENT_2)"
+ "REFERENCES PERSON (FIRST_NAME, LAST_NAME) MATCH SIMPLE "
+ "ON UPDATE CASCADE ON DELETE CASCADE");
DatabaseMetaData dbmd = con.getMetaData();
assertNotNull(dbmd);
ResultSet rs = dbmd.getImportedKeys(null, "", "person");
final List<String> fkNames = new ArrayList<String>();
int lastFieldCount = -1;
while (rs.next()) {
// destination table (all foreign keys point to the same)
String pkTableName = rs.getString("PKTABLE_NAME");
assertEquals("person", pkTableName);
// destination fields
String pkColumnName = rs.getString("PKCOLUMN_NAME");
assertTrue("first_name".equals(pkColumnName) || "last_name".equals(pkColumnName));
// source table (all foreign keys are in the same)
String fkTableName = rs.getString("FKTABLE_NAME");
assertEquals("person", fkTableName);
// foreign key name
String fkName = rs.getString("FK_NAME");
// sequence number within the foreign key
int seq = rs.getInt("KEY_SEQ");
if (seq == 1) {
// begin new foreign key
assertFalse(fkNames.contains(fkName));
fkNames.add(fkName);
// all foreign keys have 2 fields
assertTrue(lastFieldCount < 0 || lastFieldCount == 2);
} else {
// continue foreign key, i.e. fkName matches the last foreign key
assertEquals(fkNames.get(fkNames.size() - 1), fkName);
// see always increases by 1
assertEquals(seq, lastFieldCount + 1);
}
lastFieldCount = seq;
}
// there's more than one foreign key from a table to another
assertEquals(2, fkNames.size());
TestUtil.dropTable(con1, "person");
TestUtil.closeDB(con1);
}
@Test
public void testForeignKeys() throws Exception {
Connection con1 = TestUtil.openDB();
TestUtil.createTable(con1, "people", "id int4 primary key, name text");
TestUtil.createTable(con1, "policy", "id int4 primary key, name text");
TestUtil.createTable(con1, "users",
"id int4 primary key, people_id int4, policy_id int4,"
+ "CONSTRAINT people FOREIGN KEY (people_id) references people(id),"
+ "constraint policy FOREIGN KEY (policy_id) references policy(id)");
DatabaseMetaData dbmd = con.getMetaData();
assertNotNull(dbmd);
ResultSet rs = dbmd.getImportedKeys(null, "", "users");
int j = 0;
for (; rs.next(); j++) {
String pkTableName = rs.getString("PKTABLE_NAME");
assertTrue(pkTableName.equals("people") || pkTableName.equals("policy"));
String pkColumnName = rs.getString("PKCOLUMN_NAME");
assertEquals("id", pkColumnName);
String fkTableName = rs.getString("FKTABLE_NAME");
assertEquals("users", fkTableName);
String fkColumnName = rs.getString("FKCOLUMN_NAME");
assertTrue(fkColumnName.equals("people_id") || fkColumnName.equals("policy_id"));
String fkName = rs.getString("FK_NAME");
assertTrue(fkName.startsWith("people") || fkName.startsWith("policy"));
String pkName = rs.getString("PK_NAME");
assertTrue(pkName.equals("people_pkey") || pkName.equals("policy_pkey"));
}
assertEquals(2, j);
rs = dbmd.getExportedKeys(null, "", "people");
// this is hacky, but it will serve the purpose
assertTrue(rs.next());
assertEquals("people", rs.getString("PKTABLE_NAME"));
assertEquals("id", rs.getString("PKCOLUMN_NAME"));
assertEquals("users", rs.getString("FKTABLE_NAME"));
assertEquals("people_id", rs.getString("FKCOLUMN_NAME"));
assertTrue(rs.getString("FK_NAME").startsWith("people"));
TestUtil.dropTable(con1, "users");
TestUtil.dropTable(con1, "people");
TestUtil.dropTable(con1, "policy");
TestUtil.closeDB(con1);
}
@Test
public void testNumericPrecision() throws SQLException {
DatabaseMetaData dbmd = con.getMetaData();
assertNotNull(dbmd);
ResultSet rs = dbmd.getColumns(null, "public", "precision_test", "%");
assertTrue("It should have a row for the first column", rs.next());
assertEquals("The column size should be zero", 0, rs.getInt("COLUMN_SIZE"));
assertFalse("It should have a single column", rs.next());
}
@Test
public void testColumns() throws SQLException {
// At the moment just test that no exceptions are thrown KJ
String [] metadataColumns = {"TABLE_CAT", "TABLE_SCHEM", "TABLE_NAME", "COLUMN_NAME",
"DATA_TYPE", "TYPE_NAME", "COLUMN_SIZE", "BUFFER_LENGTH",
"DECIMAL_DIGITS", "NUM_PREC_RADIX", "NULLABLE", "REMARKS",
"COLUMN_DEF","SQL_DATA_TYPE","SQL_DATETIME_SUB","CHAR_OCTET_LENGTH",
"ORDINAL_POSITION", "IS_NULLABLE", "SCOPE_CATALOG", "SCOPE_SCHEMA",
"SCOPE_TABLE", "SOURCE_DATA_TYPE", "IS_AUTOINCREMENT", "IS_GENERATEDCOLUMN"};
DatabaseMetaData dbmd = con.getMetaData();
assertNotNull(dbmd);
ResultSet rs = dbmd.getColumns(null, null, "pg_class", null);
if ( rs.next() ) {
for (int i = 0; i < metadataColumns.length; i++) {
assertEquals(i + 1, rs.findColumn(metadataColumns[i]));
}
}
rs.close();
}
@Test
public void testDroppedColumns() throws SQLException {
if (!TestUtil.haveMinimumServerVersion(con, ServerVersion.v8_4)) {
return;
}
Statement stmt = con.createStatement();
stmt.execute("ALTER TABLE metadatatest DROP name");
stmt.execute("ALTER TABLE metadatatest DROP colour");
stmt.close();
DatabaseMetaData dbmd = con.getMetaData();
ResultSet rs = dbmd.getColumns(null, null, "metadatatest", null);
assertTrue(rs.next());
assertEquals("id", rs.getString("COLUMN_NAME"));
assertEquals(1, rs.getInt("ORDINAL_POSITION"));
assertTrue(rs.next());
assertEquals("updated", rs.getString("COLUMN_NAME"));
assertEquals(2, rs.getInt("ORDINAL_POSITION"));
assertTrue(rs.next());
assertEquals("quest", rs.getString("COLUMN_NAME"));
assertEquals(3, rs.getInt("ORDINAL_POSITION"));
rs.close();
rs = dbmd.getColumns(null, null, "metadatatest", "quest");
assertTrue(rs.next());
assertEquals("quest", rs.getString("COLUMN_NAME"));
assertEquals(3, rs.getInt("ORDINAL_POSITION"));
assertFalse(rs.next());
rs.close();
/* getFunctionColumns also has to be aware of dropped columns
add this in here to make sure it can deal with them
*/
rs = dbmd.getFunctionColumns(null, null, "f4", null);
assertTrue(rs.next());
assertTrue(rs.next());
assertEquals("id", rs.getString(4));
assertTrue(rs.next());
assertEquals("updated", rs.getString(4));
rs.close();
}
@Test
public void testSerialColumns() throws SQLException {
DatabaseMetaData dbmd = con.getMetaData();
ResultSet rs = dbmd.getColumns(null, null, "sercoltest", null);
int rownum = 0;
while (rs.next()) {
assertEquals("sercoltest", rs.getString("TABLE_NAME"));
assertEquals(rownum + 1, rs.getInt("ORDINAL_POSITION"));
if (rownum == 0) {
assertEquals("int4", rs.getString("TYPE_NAME"));
} else if (rownum == 1) {
assertEquals("serial", rs.getString("TYPE_NAME"));
assertTrue(rs.getBoolean("IS_AUTOINCREMENT"));
} else if (rownum == 2) {
assertEquals("bigserial", rs.getString("TYPE_NAME"));
assertTrue(rs.getBoolean("IS_AUTOINCREMENT"));
}
rownum++;
}
assertEquals(3, rownum);
rs.close();
}
@Test
public void testColumnPrivileges() throws SQLException {
// At the moment just test that no exceptions are thrown KJ
DatabaseMetaData dbmd = con.getMetaData();
assertNotNull(dbmd);
ResultSet rs = dbmd.getColumnPrivileges(null, null, "pg_statistic", null);
rs.close();
}
/*
* Helper function - this logic is used several times to test relation privileges
*/
public void relationPrivilegesHelper(String relationName) throws SQLException {
// Query PG catalog for privileges
DatabaseMetaData dbmd = con.getMetaData();
assertNotNull(dbmd);
ResultSet rs = dbmd.getTablePrivileges(null, null, relationName);
// Parse result to check if table/view owner has select privileges
boolean foundSelect = false;
while (rs.next()) {
if (rs.getString("GRANTEE").equals(TestUtil.getUser())
&& rs.getString("PRIVILEGE").equals("SELECT")) {
foundSelect = true;
}
}
rs.close();
// Check test condition
assertTrue("Couldn't find SELECT priv on relation "
+ relationName + " for " + TestUtil.getUser(),
foundSelect);
}
@Test
public void testTablePrivileges() throws SQLException {
relationPrivilegesHelper("metadatatest");
}
@Test
public void testViewPrivileges() throws SQLException {
relationPrivilegesHelper("viewtest");
}
@Test
public void testMaterializedViewPrivileges() throws SQLException {
Assume.assumeTrue(TestUtil.haveMinimumServerVersion(con, ServerVersion.v9_3));
TestUtil.createMaterializedView(con, "matviewtest", "SELECT id, quest FROM metadatatest");
try {
relationPrivilegesHelper("matviewtest");
} finally {
TestUtil.dropMaterializedView(con, "matviewtest");
}
}
@Test
public void testNoTablePrivileges() throws SQLException {
Statement stmt = con.createStatement();
stmt.execute("REVOKE ALL ON metadatatest FROM PUBLIC");
stmt.execute("REVOKE ALL ON metadatatest FROM " + TestUtil.getUser());
DatabaseMetaData dbmd = con.getMetaData();
ResultSet rs = dbmd.getTablePrivileges(null, null, "metadatatest");
assertTrue(!rs.next());
}
@Test
public void testPrimaryKeys() throws SQLException {
// At the moment just test that no exceptions are thrown KJ
DatabaseMetaData dbmd = con.getMetaData();
assertNotNull(dbmd);
ResultSet rs = dbmd.getPrimaryKeys(null, null, "pg_class");
rs.close();
}
@Test
public void testIndexInfo() throws SQLException {
Statement stmt = con.createStatement();
stmt.execute("create index idx_id on metadatatest (id)");
stmt.execute("create index idx_func_single on metadatatest (upper(colour))");
stmt.execute("create unique index idx_un_id on metadatatest(id)");
stmt.execute("create index idx_func_multi on metadatatest (upper(colour), upper(quest))");
stmt.execute("create index idx_func_mixed on metadatatest (colour, upper(quest))");
DatabaseMetaData dbmd = con.getMetaData();
assertNotNull(dbmd);
ResultSet rs = dbmd.getIndexInfo(null, null, "metadatatest", false, false);
assertTrue(rs.next());
assertEquals("idx_un_id", rs.getString("INDEX_NAME"));
assertEquals(1, rs.getInt("ORDINAL_POSITION"));
assertEquals("id", rs.getString("COLUMN_NAME"));
assertTrue(!rs.getBoolean("NON_UNIQUE"));
assertTrue(rs.next());
assertEquals("idx_func_mixed", rs.getString("INDEX_NAME"));
assertEquals(1, rs.getInt("ORDINAL_POSITION"));
assertEquals("colour", rs.getString("COLUMN_NAME"));
assertTrue(rs.next());
assertEquals("idx_func_mixed", rs.getString("INDEX_NAME"));
assertEquals(2, rs.getInt("ORDINAL_POSITION"));
assertEquals("upper(quest)", rs.getString("COLUMN_NAME"));
assertTrue(rs.next());
assertEquals("idx_func_multi", rs.getString("INDEX_NAME"));
assertEquals(1, rs.getInt("ORDINAL_POSITION"));
assertEquals("upper(colour)", rs.getString("COLUMN_NAME"));
assertTrue(rs.next());
assertEquals("idx_func_multi", rs.getString("INDEX_NAME"));
assertEquals(2, rs.getInt("ORDINAL_POSITION"));
assertEquals("upper(quest)", rs.getString("COLUMN_NAME"));
assertTrue(rs.next());
assertEquals("idx_func_single", rs.getString("INDEX_NAME"));
assertEquals(1, rs.getInt("ORDINAL_POSITION"));
assertEquals("upper(colour)", rs.getString("COLUMN_NAME"));
assertTrue(rs.next());
assertEquals("idx_id", rs.getString("INDEX_NAME"));
assertEquals(1, rs.getInt("ORDINAL_POSITION"));
assertEquals("id", rs.getString("COLUMN_NAME"));
assertTrue(rs.getBoolean("NON_UNIQUE"));
assertTrue(!rs.next());
rs.close();
}
/**
* Order defined at
* https://docs.oracle.com/javase/8/docs/api/java/sql/DatabaseMetaData.html#getIndexInfo-java.lang.String-java.lang.String-java.lang.String-boolean-boolean-
*/
@Test
public void testIndexInfoColumnOrder() throws SQLException {
DatabaseMetaData dbmd = con.getMetaData();
assertNotNull(dbmd);
ResultSet rs = dbmd.getIndexInfo(null, null, "metadatatest", false, false);
assertEquals(rs.findColumn("TABLE_CAT"), 1);
assertEquals(rs.findColumn("TABLE_SCHEM"), 2);
assertEquals(rs.findColumn("TABLE_NAME"), 3);
assertEquals(rs.findColumn("NON_UNIQUE"), 4);
assertEquals(rs.findColumn("INDEX_QUALIFIER"), 5);
assertEquals(rs.findColumn("INDEX_NAME"), 6);
assertEquals(rs.findColumn("TYPE"), 7);
assertEquals(rs.findColumn("ORDINAL_POSITION"), 8);
assertEquals(rs.findColumn("COLUMN_NAME"), 9);
assertEquals(rs.findColumn("ASC_OR_DESC"), 10);
assertEquals(rs.findColumn("CARDINALITY"), 11);
assertEquals(rs.findColumn("PAGES"), 12);
assertEquals(rs.findColumn("FILTER_CONDITION"), 13);
rs.close();
}
@Test
public void testIndexInfoColumnCase() throws SQLException {
DatabaseMetaData dbmd = con.getMetaData();
assertNotNull(dbmd);
try (ResultSet rs = dbmd.getIndexInfo(null, null, "metadatatest", false, false)) {
ResultSetMetaData rsmd = rs.getMetaData();
for (int i = 1; i < rsmd.getColumnCount() + 1; i++) {
char[] chars = rsmd.getColumnName(i).toCharArray();
for (int j = 0; j < chars.length; j++) {
if (Character.isAlphabetic(chars[j])) {
assertTrue("Column: " + rsmd.getColumnName(i) + " is not UPPER CASE", Character.isUpperCase(chars[j]));
}
}
}
}
}
@Test
public void testNotNullDomainColumn() throws SQLException {
DatabaseMetaData dbmd = con.getMetaData();
ResultSet rs = dbmd.getColumns("", "", "domaintable", "");
assertTrue(rs.next());
assertEquals("id", rs.getString("COLUMN_NAME"));
assertEquals("NO", rs.getString("IS_NULLABLE"));
assertTrue(rs.next());
assertTrue(rs.next());
assertTrue(!rs.next());
}
@Test
public void testDomainColumnSize() throws SQLException {
DatabaseMetaData dbmd = con.getMetaData();
ResultSet rs = dbmd.getColumns("", "", "domaintable", "");
assertTrue(rs.next());
assertEquals("id", rs.getString("COLUMN_NAME"));
assertEquals(10, rs.getInt("COLUMN_SIZE"));
assertTrue(rs.next());
assertEquals("v", rs.getString("COLUMN_NAME"));
assertEquals(3, rs.getInt("COLUMN_SIZE"));
assertTrue(rs.next());
assertEquals("f", rs.getString("COLUMN_NAME"));
assertEquals(8, rs.getInt("COLUMN_SIZE"));
assertEquals( 3, rs.getInt("DECIMAL_DIGITS"));
}
@Test
public void testAscDescIndexInfo() throws SQLException {
if (!TestUtil.haveMinimumServerVersion(con, ServerVersion.v8_3)) {
return;
}
Statement stmt = con.createStatement();
stmt.execute("CREATE INDEX idx_a_d ON metadatatest (id ASC, quest DESC)");
stmt.close();
DatabaseMetaData dbmd = con.getMetaData();
ResultSet rs = dbmd.getIndexInfo(null, null, "metadatatest", false, false);
assertTrue(rs.next());
assertEquals("idx_a_d", rs.getString("INDEX_NAME"));
assertEquals("id", rs.getString("COLUMN_NAME"));
assertEquals("A", rs.getString("ASC_OR_DESC"));
assertTrue(rs.next());
assertEquals("idx_a_d", rs.getString("INDEX_NAME"));
assertEquals("quest", rs.getString("COLUMN_NAME"));
assertEquals("D", rs.getString("ASC_OR_DESC"));
}
@Test
public void testPartialIndexInfo() throws SQLException {
Statement stmt = con.createStatement();
stmt.execute("create index idx_p_name_id on metadatatest (name) where id > 5");
stmt.close();
DatabaseMetaData dbmd = con.getMetaData();
ResultSet rs = dbmd.getIndexInfo(null, null, "metadatatest", false, false);
assertTrue(rs.next());
assertEquals("idx_p_name_id", rs.getString("INDEX_NAME"));
assertEquals(1, rs.getInt("ORDINAL_POSITION"));
assertEquals("name", rs.getString("COLUMN_NAME"));
assertEquals("(id > 5)", rs.getString("FILTER_CONDITION"));
assertTrue(rs.getBoolean("NON_UNIQUE"));
rs.close();
}
@Test
public void testTableTypes() throws SQLException {
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"));
final List<String> foundTableTypes = new ArrayList<String>();
// Test that no exceptions are thrown
DatabaseMetaData dbmd = con.getMetaData();
assertNotNull(dbmd);
// Test that the table types returned are the same as those expected
ResultSet rs = dbmd.getTableTypes();
while (rs.next()) {
String tableType = new String(rs.getBytes(1));
foundTableTypes.add(tableType);
}
rs.close();
Collections.sort(expectedTableTypes);
Collections.sort(foundTableTypes);
Assert.assertEquals("The table types received from DatabaseMetaData should match the 18 expected types",
true, foundTableTypes.equals(expectedTableTypes));
}
@Test
public void testFuncWithoutNames() throws SQLException {
DatabaseMetaData dbmd = con.getMetaData();
assertNotNull(dbmd);
ResultSet rs = dbmd.getProcedureColumns(null, null, "f1", null);
assertTrue(rs.next());
assertEquals("returnValue", rs.getString(4));
assertEquals(DatabaseMetaData.procedureColumnReturn, rs.getInt(5));
assertTrue(rs.next());
assertEquals("$1", rs.getString(4));
assertEquals(DatabaseMetaData.procedureColumnIn, rs.getInt(5));
assertEquals(Types.INTEGER, rs.getInt(6));
assertTrue(rs.next());
assertEquals("$2", rs.getString(4));
assertEquals(DatabaseMetaData.procedureColumnIn, rs.getInt(5));
assertEquals(Types.VARCHAR, rs.getInt(6));
assertTrue(!rs.next());
rs.close();
}
@Test
public void testFuncWithNames() throws SQLException {
DatabaseMetaData dbmd = con.getMetaData();
ResultSet rs = dbmd.getProcedureColumns(null, null, "f2", null);
assertTrue(rs.next());
assertTrue(rs.next());
assertEquals("a", rs.getString(4));
assertTrue(rs.next());
assertEquals("b", rs.getString(4));
assertTrue(!rs.next());
rs.close();
}
@Test
public void testFuncWithDirection() throws SQLException {
DatabaseMetaData dbmd = con.getMetaData();
ResultSet rs = dbmd.getProcedureColumns(null, null, "f3", null);
assertTrue(rs.next());
assertEquals("a", rs.getString(4));
assertEquals(DatabaseMetaData.procedureColumnIn, rs.getInt(5));
assertEquals(Types.INTEGER, rs.getInt(6));
assertTrue(rs.next());
assertEquals("b", rs.getString(4));
assertEquals(DatabaseMetaData.procedureColumnInOut, rs.getInt(5));
assertEquals(Types.VARCHAR, rs.getInt(6));
assertTrue(rs.next());
assertEquals("c", rs.getString(4));
assertEquals(DatabaseMetaData.procedureColumnOut, rs.getInt(5));
assertEquals(Types.TIMESTAMP, rs.getInt(6));
rs.close();
}
@Test
public void testFuncReturningComposite() throws SQLException {
DatabaseMetaData dbmd = con.getMetaData();
ResultSet rs = dbmd.getProcedureColumns(null, null, "f4", null);
assertTrue(rs.next());
assertEquals("$1", rs.getString(4));
assertEquals(DatabaseMetaData.procedureColumnIn, rs.getInt(5));
assertEquals(Types.INTEGER, rs.getInt(6));
assertTrue(rs.next());
assertEquals("id", rs.getString(4));
assertEquals(DatabaseMetaData.procedureColumnResult, rs.getInt(5));
assertEquals(Types.INTEGER, rs.getInt(6));
assertTrue(rs.next());
assertEquals("name", rs.getString(4));
assertEquals(DatabaseMetaData.procedureColumnResult, rs.getInt(5));
assertEquals(Types.VARCHAR, rs.getInt(6));
assertTrue(rs.next());
assertEquals("updated", rs.getString(4));
assertEquals(DatabaseMetaData.procedureColumnResult, rs.getInt(5));
assertEquals(Types.TIMESTAMP, rs.getInt(6));
assertTrue(rs.next());
assertEquals("colour", rs.getString(4));
assertEquals(DatabaseMetaData.procedureColumnResult, rs.getInt(5));
assertEquals(Types.VARCHAR, rs.getInt(6));
assertTrue(rs.next());