[DERBY-1644] NPE when inserting values to a table that has a column declared as generated by default as identity

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 10.2.1.6
• Fix Version/s: 10.3.1.4
• Component/s: SQL
• Environment: Sun JDK 1.4.2
• Assignee: Bryan Pendleton
• Reporter: Yip Ng
• Created: 04/Aug/06 06:33
• Updated: 17/Sep/14 13:54
• Resolved: 15/Dec/06 16:44

Description

The following scenario triggers a NullPointerException in statement compilation:

ij> create table t1 (c1 int, c2 int generated by default as identity);
0 rows inserted/updated/deleted
ij> insert into t1 (c2) values default, 10;
ERROR XJ001: Java exception: ': java.lang.NullPointerException'.

Stacktrace from derby.log:

Database Class Loader started - derby.database.classpath=''
2006-08-04 06:31:17.235 GMT Thread[main,5,main] (XID = 235), (SESSIONID = 0), (DATABASE = wombat), (DRDAID = null), Cleanup action starting
2006-08-04 06:31:17.235 GMT Thread[main,5,main] (XID = 235), (SESSIONID = 0), (DATABASE = wombat), (DRDAID = null), Failed Statement is: insert into t1 (c2) values default, 10
java.lang.NullPointerException
at org.apache.derby.impl.sql.compile.ResultColumnList.generateCore(ResultColumnList.java:1033)
at org.apache.derby.impl.sql.compile.ResultColumnList.generate(ResultColumnList.java:893)
at org.apache.derby.impl.sql.compile.RowResultSetNode.generate(RowResultSetNode.java:690)
at org.apache.derby.impl.sql.compile.UnionNode.generate(UnionNode.java:589)
at org.apache.derby.impl.sql.compile.ProjectRestrictNode.generateMinion(ProjectRestrictNode.java:1424)
at org.apache.derby.impl.sql.compile.ProjectRestrictNode.generate(ProjectRestrictNode.java:1286)
at org.apache.derby.impl.sql.compile.NormalizeResultSetNode.generate(NormalizeResultSetNode.java:122)
at org.apache.derby.impl.sql.compile.InsertNode.generate(InsertNode.java:764)
at org.apache.derby.impl.sql.compile.StatementNode.generate(StatementNode.java:232)
at org.apache.derby.impl.sql.GenericStatement.prepMinion(GenericStatement.java:477)
at org.apache.derby.impl.sql.GenericStatement.prepare(GenericStatement.java:118)
at org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.prepareInternalStatement(GenericLanguageConnectionContext.java:713)
at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:567)
at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:516)
at org.apache.derby.impl.tools.ij.ij.executeImmediate(ij.java:313)
at org.apache.derby.impl.tools.ij.utilMain.doCatch(utilMain.java:478)
at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(utilMain.java:347)
at org.apache.derby.impl.tools.ij.utilMain.go(utilMain.java:248)
at org.apache.derby.impl.tools.ij.Main.go(Main.java:203)
at org.apache.derby.impl.tools.ij.Main.mainCore(Main.java:169)
at org.apache.derby.impl.tools.ij.Main14.main(Main14.java:55)
at org.apache.derby.tools.ij.main(ij.java:69)

sysinfo:

------------------ Java Information ------------------
Java Version: 1.4.2_12
Java Vendor: Sun Microsystems Inc.
Java home: C:\jdk142\jre
Java classpath: classes;.
OS name: Windows XP
OS architecture: x86
OS version: 5.1
Java user name: yip
Java user home: C:\Documents and Settings\Administrator
Java user dir: C:\derby\trunk
java.specification.name: Java Platform API Specification
java.specification.version: 1.4
--------- Derby Information --------
JRE - JDBC: J2SE 1.4.2 - JDBC 3.0
[C:\derby\trunk\classes] 10.2.0.5 alpha - (1)
------------------------------------------------------
----------------- Locale Information -----------------
Current Locale : [English/United States [en_US]]
Found support for locale: [de_DE]
version: 10.2.0.5 alpha - (1)
Found support for locale: [es]
version: 10.2.0.5 alpha - (1)
Found support for locale: [fr]
version: 10.2.0.5 alpha - (1)
Found support for locale: [it]
version: 10.2.0.5 alpha - (1)
Found support for locale: [ja_JP]
version: 10.2.0.5 alpha - (1)
Found support for locale: [ko_KR]
version: 10.2.0.5 alpha - (1)
Found support for locale: [pt_BR]
version: 10.2.0.5 alpha - (1)
Found support for locale: [zh_CN]
version: 10.2.0.5 alpha - (1)
Found support for locale: [zh_TW]
version: 10.2.0.5 alpha - (1)
------------------------------------------------------

Issue Links

• is duplicated by: DERBY-6740 NullPointerException when inserting value into generated by default as identity using DEFAULT and specific value at the same time
• is related to: DERBY-4419 NullPointerException with INSERT INTO ... from UNION and identity columns
• is related to: DERBY-6740 NullPointerException when inserting value into generated by default as identity using DEFAULT and specific value at the same time
• relates to: DERBY-4442 Evaluation of default value and identity in an INSERT result set evaluated too early.