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https://issues.apache.org/jira/browse/DERBY-6884?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15263398#comment-15263398
]
Bryan Pendleton commented on DERBY-6884:
----------------------------------------
I finally got some time to try to develop a "clob" version of the repro
program, and, as I think we all expected, it fails in a similar fashion:
Caused by: java.lang.NumberFormatException: For input string: "2147487744"
at
java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.lang.Integer.parseInt(Integer.java:583)
at java.lang.Integer.parseInt(Integer.java:615)
at
org.apache.derby.impl.load.ImportReadData.initExternalLobFile(ImportReadData.java:1040)
at
org.apache.derby.impl.load.ImportReadData.getClobColumnFromExtFileAsString(ImportReadData.java:953)
at
org.apache.derby.impl.load.ImportAbstract.getString(ImportAbstract.java:167)
at org.apache.derby.impl.load.Import.getString(Import.java:45)
at
org.apache.derby.iapi.types.SQLChar.setValueFromResultSet(SQLChar.java:1466)
at
org.apache.derby.impl.sql.execute.VTIResultSet.populateFromResultSet(VTIResultSet.java:688)
at
org.apache.derby.impl.sql.execute.VTIResultSet.getNextRowCore(VTIResultSet.java:461)
at
org.apache.derby.impl.sql.execute.ProjectRestrictResultSet.getNextRowCore(ProjectRestrictResultSet.java:287)
at
org.apache.derby.impl.sql.execute.NormalizeResultSet.getNextRowCore(NormalizeResultSet.java:188)
... (I truncated the stack trace)
So there is clearly more work to be done, to address the issues on the CLOB
side.
> SYSCS_IMPORT_TABLE_LOBS_FROM_EXTFILE can't import more than Integer.MAX_VALUE
> bytes of blob data
> ------------------------------------------------------------------------------------------------
>
> Key: DERBY-6884
> URL: https://issues.apache.org/jira/browse/DERBY-6884
> Project: Derby
> Issue Type: Bug
> Components: SQL
> Affects Versions: 10.11.1.1
> Reporter: Edward Howe
> Attachments: DerbyIssue.java, trivial.diff
>
>
> Using SYSCS_EXPORT_TABLE_LOBS_TO_EXTFILE to export a table containing a blob
> column, SYSCS_IMPORT_TABLE_LOBS_FROM_EXTFILE will fail with a
> NumberFormatException if the offset for a blob record is > Integer.MAX_VALUE.
> This is because ImportReadData.initExternalLobFile() is parsing the offset
> as an Integer.
> The stack trace and a program to reproduce are below.
> java.lang.NumberFormatException: For input string: "2147483770"
> at
> java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
> ~[na:1.8.0_45]
> at java.lang.Integer.parseInt(Integer.java:583) ~[na:1.8.0_45]
> at java.lang.Integer.parseInt(Integer.java:615) ~[na:1.8.0_45]
> at
> org.apache.derby.impl.load.ImportReadData.initExternalLobFile(Unknown Source)
> ~[derby-10.11.1.1.jar:na]
> at
> org.apache.derby.impl.load.ImportReadData.getBlobColumnFromExtFile(Unknown
> Source) ~[derby-10.11.1.1.jar:na]
> at org.apache.derby.impl.load.ImportAbstract.getBlob(Unknown Source)
> ~[derby-10.11.1.1.jar:na]
> at org.apache.derby.impl.load.Import.getBlob(Unknown Source)
> ~[derby-10.11.1.1.jar:na]
> at org.apache.derby.iapi.types.SQLBlob.setValueFromResultSet(Unknown
> Source) ~[derby-10.11.1.1.jar:na]
> at
> org.apache.derby.impl.sql.execute.VTIResultSet.populateFromResultSet(Unknown
> Source) ~[derby-10.11.1.1.jar:na]
> at
> org.apache.derby.impl.sql.execute.VTIResultSet.getNextRowCore(Unknown Source)
> ~[derby-10.11.1.1.jar:na]
> at
> org.apache.derby.impl.sql.execute.ProjectRestrictResultSet.getNextRowCore(Unknown
> Source) ~[derby-10.11.1.1.jar:na]
> at
> org.apache.derby.impl.sql.execute.NormalizeResultSet.getNextRowCore(Unknown
> Source) ~[derby-10.11.1.1.jar:na]
> at
> org.apache.derby.impl.sql.execute.NoPutResultSetImpl.getNextRowFromRowSource(Unknown
> Source) ~[derby-10.11.1.1.jar:na]
> at org.apache.derby.impl.store.access.heap.HeapController.load(Unknown
> Source) ~[derby-10.11.1.1.jar:na]
> at org.apache.derby.impl.store.access.heap.Heap.load(Unknown Source)
> ~[derby-10.11.1.1.jar:na]
> at
> org.apache.derby.impl.store.access.RAMTransaction.loadConglomerate(Unknown
> Source) ~[derby-10.11.1.1.jar:na]
> at
> org.apache.derby.impl.store.access.RAMTransaction.recreateAndLoadConglomerate(Unknown
> Source) ~[derby-10.11.1.1.jar:na]
> at
> org.apache.derby.impl.sql.execute.InsertResultSet.bulkInsertCore(Unknown
> Source) ~[derby-10.11.1.1.jar:na]
> at org.apache.derby.impl.sql.execute.InsertResultSet.open(Unknown
> Source) ~[derby-10.11.1.1.jar:na]
> at
> org.apache.derby.impl.sql.GenericPreparedStatement.executeStmt(Unknown
> Source) ~[derby-10.11.1.1.jar:na]
> at org.apache.derby.impl.sql.GenericPreparedStatement.execute(Unknown
> Source) ~[derby-10.11.1.1.jar:na]
> ... 36 common frames omitted
> ==================================
> package blob;
> import java.io.BufferedInputStream;
> import java.io.File;
> import java.io.FileInputStream;
> import java.io.IOException;
> import java.sql.*;
> public final class DerbyIssue {
> // derby url
> public static final String DBURL = "jdbc:derby:testdb;create=true";
> // any random binary file such as a large image or document
> public static final String BLOB_DATA_FILE = "...";
> public static final String EXPORT_TABLE_FILE = "table-data";
> public static final String EXPORT_BLOB_FILE = "blob-data";
> public static void main(String... args) throws Exception {
> final DerbyIssue test = new DerbyIssue();
> test.run();
> }
> public void run() throws Exception {
>
> Class.forName("org.apache.derby.jdbc.ClientDriver").getConstructor().newInstance();
> try(final Connection con = DriverManager.getConnection(DBURL)) {
> try (final Statement stmt = con.createStatement()) {
> stmt.execute("CREATE TABLE TESTBLOB(id BIGINT, content
> BLOB)");
> }
> System.out.printf("inserting test data%n");
> try (final PreparedStatement pstmt = con.prepareStatement("INSERT
> INTO TESTBLOB (id, content) VALUES (?, ?)")) {
> long id = 1;
> long byteCount = 0;
> final File content = new File(BLOB_DATA_FILE);
> while (byteCount < Integer.MAX_VALUE) {
> insertBlob(pstmt, id, content);
> id++;
> byteCount += content.length();
> if (id % 100 == 0) {
> System.out.printf("%d%n", byteCount);
> }
> }
> insertBlob(pstmt, id, content);
> byteCount += content.length();
> System.out.printf("%d bytes written to testblob table%n",
> byteCount);
> }
> final File exportFile = new File(EXPORT_TABLE_FILE);
> final File blobFile = new File(EXPORT_BLOB_FILE);
> try (final CallableStatement stmt = con.prepareCall(
> "CALL SYSCS_UTIL.SYSCS_EXPORT_TABLE_LOBS_TO_EXTFILE
> (null, ?, ?, null, null, null, ?)")) {
> stmt.setString(1, "TESTBLOB");
> stmt.setString(2, exportFile.toString());
> stmt.setString(3, blobFile.toString());
> stmt.execute();
> }
> System.out.printf("testblob table exported%n");
> try (final Statement stmt = con.createStatement()) {
> stmt.execute("TRUNCATE TABLE TESTBLOB");
> }
> System.out.printf("testblob table truncated%n");
> try (final CallableStatement stmt = con.prepareCall(
> "CALL SYSCS_UTIL.SYSCS_IMPORT_TABLE_LOBS_FROM_EXTFILE
> (null, ?, ?, null, null, null, 0)")) {
> stmt.setString(1, "TESTBLOB");
> stmt.setString(2, exportFile.toString());
> stmt.execute();
> }
> System.out.printf("testblob data imported%n");
> }
> }
> private void insertBlob(PreparedStatement pstmt, long id, File content)
> throws IOException, SQLException {
> try(BufferedInputStream contentStream = new BufferedInputStream(new
> FileInputStream(content))) {
> pstmt.setLong(1, id);
> pstmt.setBinaryStream(2, contentStream);
> pstmt.executeUpdate();
> }
> }
> }
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