Hi,  I am trying to migrate gocd from 19.2.0 to latest version and trying 
to backup the database and insert into new postgress SQL.
When running db migration script, I am getting following error

./gocd-database-migrator --insert --source-db-url='jdbc:h2:/var/tmp/cruise' 
 --source-db-user='sa' 
 --target-db-url='jdbc:h2:/var/tmp/gocd/newdb/cruise' 
--target-db-user='target-sa' --target-db-password='target-sa
-password'


ERROR

INFO: No `--source-db-driver-class` is specified. Setting 
`--source-db-driver-class='org.h2.Driver'`.
INFO: No `--target-db-driver-class` specified. Setting 
`--target-db-driver-class='org.h2.Driver'`.
2024-10-23 09:52:27,032 INFO  [main] DbSync:77 - Using dialect H2 for 
source database.
2024-10-23 09:52:27,100 INFO  [main] DbSync:78 - Using dialect H2 for 
target database.
Reading change scripts from directory 
/apps/installs/gocd-database-migrator-1.0.4/h2deltas...
dbdeploy v2.11
Changes currently applied to database:
  1..90, 221001, 230001..230009, 240001, 240002, 300001..300011, 
1202001..1202003, 1203002..1203005, 1301001, 1302001, 1303001..1303004, 
1304001, 1401001, 1403001, 1403002, 1501001..1501003, 1502001, 1503001, 
1503002, 1606001, 1606002, 1607001, 1610001, 1701001, 1702001, 
1704001..1704003, 1708001, 1801001..1801007, 1802001, 1802002, 1804001, 
1805001, 1807001, 1807002, 1808001, 1808002, 1901001, 1902001..1902008
Scripts available:
  1..90, 221001, 230001..230009, 240001, 240002, 300001..300011, 
1202001..1202003, 1203002..1203005, 1301001, 1302001, 1303001..1303004, 
1304001, 1401001, 1403001, 1403002, 1501001..1501003, 1502001, 1503001, 
1503002, 1606001, 1606002, 1607001, 1610001, 1701001, 1702001, 
1704001..1704003, 1708001, 1801001..1801007, 1802001, 1802002, 1804001, 
1805001, 1807001, 1807002, 1808001, 1808002, 1901001, 1902001..1902008, 
1903001..1903003, 1909001, 1910001..1910006
To be applied:
  1903001..1903003, 1909001, 1910001..1910006
2024-10-23 09:52:27,191 ERROR [main] DbSync:99 - null
org.h2.jdbc.JdbcSQLNonTransientException: General error: 
"java.lang.NullPointerException: Cannot invoke 
""org.h2.index.Index.getRowCountApproximation()"" because 
""this.scanIndex"" is null"; SQL statement:


--------------- Fragment begins: #1903001: 
1903001_add_status_and_message_to_server_backup.sql ---------------
INSERT INTO changelog (change_number, delta_set, start_dt, applied_by, 
description) VALUES (1903001, 'DDL', CURRENT_TIMESTAMP, USER(), 
'1903001_add_status_and_message_to_server_backup.sql'); [50000-200]
        at 
org.h2.message.DbException.getJdbcSQLException(DbException.java:505)
        at 
org.h2.message.DbException.getJdbcSQLException(DbException.java:429)
        at org.h2.message.DbException.get(DbException.java:194)
        at org.h2.message.DbException.convert(DbException.java:347)
        at org.h2.command.Command.executeUpdate(Command.java:259)
        at org.h2.jdbc.JdbcStatement.executeInternal(JdbcStatement.java:228)
        at org.h2.jdbc.JdbcStatement.execute(JdbcStatement.java:201)
        at 
org.apache.commons.dbcp2.DelegatingStatement.execute(DelegatingStatement.java:193)
        at 
org.apache.commons.dbcp2.DelegatingStatement.execute(DelegatingStatement.java:193)
        at com.thoughtworks.go.dbsync.DbSync.lambda$export$2(DbSync.java:86)
        at com.thoughtworks.go.dbsync.Util.withDataSource(Util.java:97)
        at com.thoughtworks.go.dbsync.DbSync.export(DbSync.java:80)
        at com.thoughtworks.go.dbsync.cli.Main.main(Main.java:46)
Caused by: java.lang.NullPointerException: Cannot invoke 
"org.h2.index.Index.getRowCountApproximation()" because "this.scanIndex" is 
null
        at 
org.h2.pagestore.db.PageStoreTable.getRowCountApproximation(PageStoreTable.java:510)
        at org.h2.pagestore.db.PageDataIndex.getCost(PageDataIndex.java:284)
        at org.h2.table.Table.getBestPlanItem(Table.java:761)
        at org.h2.table.TableFilter.getBestPlanItem(TableFilter.java:251)
        at org.h2.command.dml.Update.prepare(Update.java:284)
        at org.h2.command.CommandList.executeRemaining(CommandList.java:46)
        at org.h2.command.CommandList.update(CommandList.java:67)
        at org.h2.command.CommandList.executeRemaining(CommandList.java:59)
        at org.h2.command.CommandList.update(CommandList.java:67)
        at org.h2.command.Command.executeUpdate(Command.java:251)
        ... 8 common frames omitted
java.lang.RuntimeException: org.h2.jdbc.JdbcSQLNonTransientException: 
General error: "java.lang.NullPointerException: Cannot invoke 
""org.h2.index.Index.getRowCountApproximation()"" because 
""this.scanIndex"" is null"; SQL statement:


--------------- Fragment begins: #1903001: 
1903001_add_status_and_message_to_server_backup.sql ---------------
INSERT INTO changelog (change_number, delta_set, start_dt, applied_by, 
description) VALUES (1903001, 'DDL', CURRENT_TIMESTAMP, USER(), 
'1903001_add_status_and_message_to_server_backup.sql'); [50000-200]
        at com.thoughtworks.go.dbsync.Util.withDataSource(Util.java:100)
        at com.thoughtworks.go.dbsync.DbSync.export(DbSync.java:80)
        at com.thoughtworks.go.dbsync.cli.Main.main(Main.java:46)
Caused by: org.h2.jdbc.JdbcSQLNonTransientException: General error: 
"java.lang.NullPointerException: Cannot invoke 
""org.h2.index.Index.getRowCountApproximation()"" because 
""this.scanIndex"" is null"; SQL statement:


--------------- Fragment begins: #1903001: 
1903001_add_status_and_message_to_server_backup.sql ---------------
INSERT INTO changelog (change_number, delta_set, start_dt, applied_by, 
description) VALUES (1903001, 'DDL', CURRENT_TIMESTAMP, USER(), 
'1903001_add_status_and_message_to_server_backup.sql'); [50000-200]
        at 
org.h2.message.DbException.getJdbcSQLException(DbException.java:505)
        at 
org.h2.message.DbException.getJdbcSQLException(DbException.java:429)
        at org.h2.message.DbException.get(DbException.java:194)
        at org.h2.message.DbException.convert(DbException.java:347)
        at org.h2.command.Command.executeUpdate(Command.java:259)
        at org.h2.jdbc.JdbcStatement.executeInternal(JdbcStatement.java:228)
        at org.h2.jdbc.JdbcStatement.execute(JdbcStatement.java:201)
        at 
org.apache.commons.dbcp2.DelegatingStatement.execute(DelegatingStatement.java:193)
        at 
org.apache.commons.dbcp2.DelegatingStatement.execute(DelegatingStatement.java:193)
        at com.thoughtworks.go.dbsync.DbSync.lambda$export$2(DbSync.java:86)
        at com.thoughtworks.go.dbsync.Util.withDataSource(Util.java:97)
        ... 2 more
Caused by: java.lang.NullPointerException: Cannot invoke 
"org.h2.index.Index.getRowCountApproximation()" because "this.scanIndex" is 
null
        at 
org.h2.pagestore.db.PageStoreTable.getRowCountApproximation(PageStoreTable.java:510)
        at org.h2.pagestore.db.PageDataIndex.getCost(PageDataIndex.java:284)
        at org.h2.table.Table.getBestPlanItem(Table.java:761)
        at org.h2.table.TableFilter.getBestPlanItem(TableFilter.java:251)
        at org.h2.command.dml.Update.prepare(Update.java:284)
        at org.h2.command.CommandList.executeRemaining(CommandList.java:46)
        at org.h2.command.CommandList.update(CommandList.java:67)
        at org.h2.command.CommandList.executeRemaining(CommandList.java:59)
        at org.h2.command.CommandList.update(CommandList.java:67)
        at org.h2.command.Command.executeUpdate(Command.java:251)



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