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Diffstat (limited to 'doc/src/sgml/plhandler.sgml')
| -rw-r--r-- | doc/src/sgml/plhandler.sgml | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/doc/src/sgml/plhandler.sgml b/doc/src/sgml/plhandler.sgml index aa4bba3bee1..0fc5d7b411b 100644 --- a/doc/src/sgml/plhandler.sgml +++ b/doc/src/sgml/plhandler.sgml @@ -194,11 +194,13 @@ CREATE LANGUAGE plsample <para> Validator functions should typically honor the <xref linkend="guc-check-function-bodies"> parameter: if it is turned off then - any expensive or context-sensitive checking should be skipped. - In particular, this parameter is turned off by <application>pg_dump</> - so that it can load procedural language functions without worrying - about possible dependencies of the function bodies on other database - objects. (Because of this requirement, the call handler should avoid + any expensive or context-sensitive checking should be skipped. If the + language provides for code execution at compilation time, the validator + must suppress checks that would induce such execution. In particular, + this parameter is turned off by <application>pg_dump</> so that it can + load procedural language functions without worrying about side effects or + dependencies of the function bodies on other database objects. + (Because of this requirement, the call handler should avoid assuming that the validator has fully checked the function. The point of having a validator is not to let the call handler omit checks, but to notify the user immediately if there are obvious errors in a |