General Bug Report: Memory leak in backend on failed inserts

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POSTGRESQL BUG REPORT TEMPLATE
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Your name : Thomas Reinke
Your email address : reinke(at)e-softinc(dot)com

Category : runtime: back-end
Severity : serious

Summary: Memory leak in backend on failed inserts

System Configuration
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Operating System : Linux 2.0.30 RedHat

PostgreSQL version : 6.3

Compiler used : gcc 2.7.2.1

Hardware:
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Linux www4 2.0.30 #1 Tue Apr 22 10:49:45 EDT 1997 i686 unknown
Pentium MMX 128 Meg

Versions of other tools:
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Problem Description:
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The postgres backend leaks memory in a serious fashion
on failed inserts. With batch programs doing many inserts,
a system with 212 Meg virtual memory runs out of memory
after approximately 20,000 failed inserts.

Workaround: repeatedly reset the database connection
to close the old backend down and start a new one.

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Test Case:
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Any failed insert, repeatedly done, will demonstrate
this leak.

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Solution:
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